CN115612025B - Reactive comb-structure compatibilizer and preparation method and application thereof - Google Patents
Reactive comb-structure compatibilizer and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a reactive comb-structure compatibilizer, a preparation method thereof and application thereof in polymer alloy. The invention prepares the reactive compatibilizer with comb-shaped structure through molecular structure design, and is suitable for polymer alloys such as PC/ABS and the like. Compared with the traditional linear compatibilizer, the compatibilizer designed by the invention has long branched chains, and meanwhile, the main chain contains reactive groups which can react with PC in situ to form the compatibilizer with double grafted structures. Through a special double-grafting structure, the compatibilizer can be stably distributed at a two-phase interface, so that the interface binding force is enhanced, and the compatibilizer efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of design and synthesis of compatibilizers, in particular to a reactive comb-structure compatibilizer, a preparation method thereof and application thereof in polymer alloy.
Background
Polymer alloys refer to blend materials in which two or more polymers are mixed to form a macroscopically homogeneous, stable blend. Compared with the synthetic novel material, the alloying modification of the polymer material can greatly reduce the research and development cost of the material and shorten the research and development period, so that the blending modification technology is widely focused and developed very rapidly.
However, because of the structural differences between the two polymers, the two polymers tend to be thermodynamically incompatible, and thus the two phases in the alloy will tend to phase separate to form respective phase regions and ultimately result in deterioration of the mechanical properties of the polymer alloy, and therefore compatibility between the components is one of the key factors in determining the final properties of the polymer alloy. In order to improve the compatibility between two phases, the most common method in industry is to add a reactive compatibilizer, and most of the conventional reactive compatibilizers are linear block polymers. Due to the limitation of the structure, the linear compatibilizer cannot be stably distributed at the two-phase interface under the action of shearing external force, and high-efficiency compatibilization of the polymer alloy cannot be realized.
In the document Reactive Compatibilization: formation of Double-Grafted Copolymers by In Situ Binary Grafting and Their Compatibilization Effect, a comb-structured reactive compatibilizer is prepared by structural design of the compatibilizer, and is applied to a PLL/PVDF alloy system, so that the toughness of the PLLA/PVDF alloy is greatly improved, and the efficient compatibilizer of the PLLA/PVDF alloy is realized. Based on the theoretical research, the invention designs and synthesizes the reactive comb compatibilizer applied to the polymer alloy, which greatly improves the performance of the alloy and realizes the efficient compatibilization of the alloy.
Disclosure of Invention
The invention aims to prepare a reactive comb-structure compatibilizer, a preparation method thereof and application of the compatibilizer in polymer alloy.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect, the present invention provides a reactive comb structure compatibilizer of formula (I),
wherein X is an integer between 30 and 50, y is an integer between 10 and 30, z is an integer between 3 and 12, n is an integer between 3 and 40, and X is Br or Cl.
The side chain of the comb-structured compatibilizer prepared by the invention is a styrene branched chain with a certain molecular weight, and the main chain contains a maleic anhydride group, so that the side chain of the comb-structured compatibilizer can react with hydroxyl or carboxyl on a polymer in situ in the melt blending process to form the double-grafted compatibilizer.
The reactive comb compatibilizer prepared by the invention has a special structure, so that the compatibilizer can be stably distributed at a two-phase interface, high-efficiency compatibilizer can be realized for polymer alloy under the condition of low addition amount, and the mechanical properties of the polymer alloy are greatly improved.
In a second aspect, the present invention provides a method for preparing the reactive comb-structured compatibilizer, which comprises the following steps:
(1) Dispersing styrene, an initiator, a catalyst A and a catalyst ligand in an organic solvent A, carrying out polymerization reaction at 60-130 ℃ for 6-24 h (preferably 70 ℃ for 12 h) in a nitrogen atmosphere, and carrying out aftertreatment A on the obtained reaction solution A to obtain a compound shown in a formula 1 (PS-COOH, polystyrene with carboxyl groups at the tail ends and molecular weight within a certain range, and measuring the molecular weight of PS-COOH by GPC test);
the initiator is p-bromomethylbenzoic acid or p-chloromethylbenzoic acid, the catalyst A is one of cuprous chloride or ferrous chloride (preferably cuprous chloride), and the catalyst ligand is 2, 2-bipyridine; the ratio of the amounts of the styrene, the initiator and the catalyst A is 100:1-4:1.5-10 (preferably 100:2.5:8); the ratio of the amount of the substances of the catalyst A and the catalyst ligand is 1:3-6 (preferably 1:3);
the use of 2, 2-bipyridine as a catalyst ligand may increase catalytic efficiency.
Wherein n=3-40, x is Br or Cl;
when the initiator is p-chloromethylbenzoic acid, the reaction that occurs is:
(2) Dispersing the compound shown in the formula 1 and the free radical polymerization inhibitor in the step (1) in an organic solvent B, stirring for 2-7 hours at 50-130 ℃ in nitrogen atmosphere for the first time (preferably stirring for 2 hours at 70 ℃), cooling the system to room temperature, adding a catalyst B, stirring for the second time for 10-60 minutes (preferably 30 minutes), adding Glycidyl Methacrylate (GMA) as an end group modifier, and stirring for reacting for 8-12 hours at 90-130 ℃ for 12 hours (preferably stirring for 12 hours at 100 ℃); the obtained reaction liquid B is subjected to post-treatment B to obtain a compound shown in a formula 2;
the free radical polymerization inhibitor is hydroquinone; the catalyst B is N, N-dimethylbenzylamine, sodium hydroxide or potassium hydroxide; the ratio of the amounts of the compound shown in the formula 1, the free radical polymerization inhibitor, the catalyst B and the glycidyl methacrylate is 1:0.1-0.15: 0.015-0.06:0.5-4 (preferably 1:0.1:0.05:3);
under the action of a catalyst, an epoxy group in GMA and a carboxyl end group in PS-COOH are reacted in a nitrogen atmosphere to prepare the polystyrene type macromer (PS-GMA).
The reaction prevents polymerization of GMA by means of a free radical inhibitor.
(3) Dissolving the compound shown in the formula 2 in the step (2), maleic anhydride and azodiisobutyronitrile in an organic solvent C to obtain a preparation solution; slowly dripping the preparation liquid into styrene at 60-110 ℃ in a nitrogen atmosphere, reacting for 3-12 h (preferably 9 h) after dripping, and performing post-treatment C on the obtained reaction liquid C to obtain a reactive comb-structure compatibilizer shown in a formula (I); the comb polymer PS-RC ((St-co-MAH) -g-PS) is prepared by free radical polymerization under the action of an initiator, and the molecular weight of the compatibilizer is controlled within a certain range.
The initiator is one or a mixture of two of azodiisobutyronitrile and azodiisoheptonitrile; the mass ratio of the compound shown in the formula 2, the initiator, the styrene and the maleic anhydride is 1:0.005-0.06: 1-5:1-6 (preferably 1:0.06:4.9:3.6).
Preferably, in the step (1), the ratio of the styrene to the initiator is 100:2.5, and controlled polymerization is carried out, so that carboxyl-terminated polystyrene with a molecular weight of 5000 can be prepared.
In the step (1), the initiator is p-bromomethylbenzoic acid or p-chloromethyl benzoic acid, and the initiator has higher initiation efficiency.
Preferably, in the step (1), the organic solvent a is one or a mixed solvent of two of cyclohexanone, cyclopentanone, and toluene (preferably cyclohexanone). Further, the volume ratio of the styrene to the organic solvent A is 11:10 to 30 (preferably 11:30).
Further, the post-treatment a in the step (1) is: the reaction solution A was exposed to air and put into an ice-water bath to quench the reaction, and was precipitated by adding methanol at 0℃to remove impurities by repeating the following operations (3 times): suction filtering, dissolving the obtained filter cake with tetrahydrofuran, and placing the obtained solution in methanol at 0 ℃ for precipitation; the precipitate obtained last time is dried to obtain the compound shown in the formula 1.
Further, in the step (2), the organic solvent B is one of toluene, xylene and acetone, preferably xylene; preferably, the volume of the organic solvent B is 20 to 100mL/g (preferably 20 mL/g) based on the mass of the compound represented by formula 1.
Further preferably, in step (2), the catalyst B, glycidyl methacrylate are added as a catalyst B solution, a glycidyl methacrylate solution, respectively, the solvent of which is the same as the organic solvent B, preferably the concentration of the catalyst B solution is 0.025mmol/mL; the concentration of the glycidyl methacrylate solution was 0.9mmol/mL. The addition is more uniform in the form of a solution and polymerization occurs more uniformly.
Further, the post-treatment B in step (2) is: the reaction solution B is put into an ice-water bath to quench reaction, and is added into methanol with the temperature of 0 ℃ to precipitate, and the following operations (3 times) are repeated to remove impurities: suction filtering, dissolving the obtained filter cake with tetrahydrofuran, and placing the obtained solution in methanol at 0 ℃ for precipitation; the precipitate obtained last time is dried to obtain the compound shown in the formula 2.
Preferably, in the step (3), the organic solvent C is toluene, acetone or xylene (preferably acetone), which can dissolve the raw material well, and the volume of the organic solvent C is 10 to 120ml/g (preferably 17 ml/g) based on the mass of the compound represented by formula 2.
Further, the post-treatment C in step (3) is: the reaction solution C is put into an ice-water bath to quench the reaction, and is added into methanol with the temperature of 0 ℃ to precipitate, and the following operations (3 times) are repeated to remove impurities: suction filtering, diluting the obtained filter cake with acetone, and precipitating the obtained solution in methanol at 0 ℃; and drying the precipitate obtained in the last time to obtain the reactive comb-structure compatibilizer shown in the formula (I).
The invention recommends that the impurity removal operation in the steps (1), (2) and (3) is carried out for 3 times, and pure products can be basically obtained.
In a third aspect, the use of the reactive comb structure compatibilizer in the preparation of PC/ABS alloys is provided.
Preferably, the reactive comb-structured compatibilizer prepared by the invention is suitable for PC/ABS alloy, and can realize high-efficiency compatibilizer for PC/ABS alloy under lower additive amount.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention prepares the reactive compatibilizer with comb-shaped structure through molecular structure design, and is suitable for polymer alloys such as PC/ABS and the like. Compared with the traditional linear compatibilizer, the compatibilizer designed by the invention has long branched chains, and meanwhile, the main chain contains reactive groups which can react with PC in situ to form the compatibilizer with double grafted structures. Through a special double-grafting structure, the compatibilizer can be stably distributed at a two-phase interface, so that the interface binding force is enhanced, and the compatibilizer efficiency is greatly improved.
(2) The invention provides several PC/ABS alloy formulas, and the reactive comb-shaped compatibilizer prepared by the invention can realize the efficient compatibilizer of PC/ABS alloy under extremely low additive amount (1 wt%) and greatly improve the mechanical properties of PC/ABS alloy.
Drawings
FIG. 1 (a) IR spectrum of PS-RC; (b) Nuclear magnetic carbon spectrum
Detailed Description
The invention will be further illustrated with reference to specific examples, but is not limited to these examples.
Example 1
The synthesis step of the reactive comb compatibilizer comprises the following steps:
(1) Synthesis of carboxyl-terminated polystyrene (PS-COOH): styrene (11 mL,0.0960 mol), p-chloromethylbenzoic acid (0.4180 g,0.0024 mol), 2-bipyridine (1.1123 g, 0.023040 mol), cuCl (1.2380 g,0.0076 mol) and 30mL cyclohexanone were added to a three-necked flask, and the flask was frozen with liquid nitrogen, evacuated, circulated with nitrogen three times to remove oxygen in the system, and then the system was put into an oil bath at 70℃to react for 12 hours. After the reaction was completed, the system was exposed to air and placed in an ice-water bath to quench the reaction. The crude product was precipitated in 200ml of ice methanol (0 ℃) and the precipitate was removed by suction filtration. The precipitate was then dissolved with 40ml of Tetrahydrofuran (THF), again precipitated in ice methanol, and repeated 3 times to remove the residual starting material in the system, giving the final product PS-COOH (essentially pure after 3 runs). PS-COOH was oven dried to constant weight at 50deg.C under vacuum.
(2) Synthesis of macromer PS-GMA: PS-COOH (9 g, 0.003mol), hydroquinone (0.0288 g,0.0003 mol) and 180mL of xylene prepared in the step (1) were placed in a three-necked flask, nitrogen was passed through, and the mixture was heated with stirring at 70℃for 2 hours. The system was then cooled to room temperature and 6ml of a solution of N, N-dimethylbenzylamine (0.0122 g,0.00015 mol) in xylene was added and stirred at room temperature for 30min. A solution of 10ml of GMA (1.4270 g,0.009 mol) in xylene was then added to the mixture. The system was reacted at 100℃for 12h, followed by quenching with an ice-water bath, the crude product was precipitated in 200ml of ice-methanol (0 ℃) and the precipitate was removed by suction filtration. The precipitate was then dissolved with 40ml of Tetrahydrofuran (THF), again precipitated in ice methanol, and repeated 3 times to give the final product PS-GMA (essentially pure after 3 runs). PS-GMA was oven dried to constant weight at 50deg.C under vacuum.
(3) Synthesizing a reactive comb molecule compatibilizer: PS-GMA (3.50 g), maleic anhydride (12.6 g) and azobisisobutyronitrile (0.21 g) prepared in step (2) were dissolved in 60mL of acetone, placed in a constant pressure dropping funnel, styrene (17.10 g) was placed in a three-necked flask, and connected to a condensing reflux device. The system was first evacuated and then the apparatus was filled with nitrogen and repeated three times to remove oxygen from the system. Then the system is placed in an oil bath pot at 110 ℃, the solution in a constant pressure dropping funnel is added dropwise within 1h, and then the system is reacted for 9h. After polymerization, the system was quenched in an ice-water bath. The crude product was precipitated in 200ml of ice methanol (0 ℃) and the precipitate was removed by suction filtration, followed by dilution with 100ml of acetone, again precipitation in ice methanol, and repeated 3 times to give the reactive compatibilizer PS-RC. The PS-RC was oven dried to constant weight at 50deg.C under vacuum.
Fig. 1 is an infrared spectrum and a nuclear magnetic carbon spectrum of the compatibilizer, and it can be seen from fig. 1 that the compatibilizer has a double peak of maleic anhydride at 1850 and 1780, and has a characteristic double peak of styrene at 1495 and 1454, and at the same time, the characteristic peaks in the nuclear magnetic carbon spectrum can be in one-to-one correspondence with the structures, which indicates that the compatibilizer is successfully synthesized.
The compatibilizer synthesized in the example 1 is melt blended with PC and ABS to prepare the high-performance PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin, 1 part of compatibilizer PS-RC and 0.4 part of antioxidant 1010;
(2) Drying PC resin, ABS resin, compatibilizer and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared; the conditions for melt extrusion in the twin screw extruder in the following examples were: the temperature of the first area is 225 ℃, the temperature of the second area is 230 ℃, the temperature of the third area is 235 ℃, the temperature of the fourth area is 240 ℃, the temperature of the fifth area is 245 ℃, the temperature of the sixth area is 250 ℃, the temperature of the seventh area is 245 ℃, the temperature of the eighth area is 240 ℃, the temperature of the ninth area is 235 ℃, the temperature of the tenth area is 235 ℃, and the rotating speed of the screw is 70-90rpm.
Example 2
The compatibilizer synthesized in the example 1 is melt blended with PC and ABS to prepare the high-performance PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin, 2 parts of compatibilizer PS-RC and 0.4 part of antioxidant 1010;
(2) Drying PC resin, ABS resin, compatibilizer and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared;
example 3
The compatibilizer synthesized in the example 1 is melt blended with PC and ABS to prepare the high-performance PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin, 3 parts of compatibilizer PS-RC and 0.4 part of antioxidant 1010;
(2) Drying PC resin, ABS resin, compatibilizer and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared;
comparative example 1
The traditional commercial compatibilizer SMA (SMA-800 of Jiaxing Hua chemical industry Co., ltd.) is melt blended with PC and ABS to prepare the PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin, 1 part of compatibilizer SMA and 0.4 part of antioxidant 1010;
(2) Drying PC resin, ABS resin, compatibilizer and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared;
comparative example 2
The traditional commercial compatibilizer SMA is melt blended with PC and ABS to prepare the PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin, 2 parts of compatibilizer SMA and 0.4 part of antioxidant 1010;
(2) Drying PC resin, ABS resin, compatibilizer and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared;
comparative example 3
The traditional commercial compatibilizer SMA is melt blended with PC and ABS to prepare the PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin, 3 parts of compatibilizer SMA and 0.4 part of antioxidant 1010;
(2) Drying PC resin, ABS resin, compatibilizer and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared;
comparative example 4
The traditional commercial compatibilizer ABS-MAH is melt blended with PC and ABS to prepare PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin, 0.4 part of compatibilizer ABS-MAH 2 and antioxidant;
(2) Drying PC resin, ABS resin, compatibilizer and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared;
comparative example 5
PC and ABS are subjected to melt blending to prepare PC/ABS alloy, and the preparation method comprises the following steps:
(1) The preparation method comprises the following components in parts by weight: 65 parts of PC resin, 35 parts of ABS resin and 0.4 part of antioxidant 1010;
(2) Drying PC resin, ABS resin and antioxidant in a drying oven, and mixing the dried raw materials in a high-speed mixer for 5-10 minutes;
(3) Melt extrusion is carried out on the mixture obtained in the step (2) through a double-screw extruder, and a PC/ABS alloy material is prepared;
the mechanical properties of each of the above examples and comparative examples were measured, and the results are shown in Table 1.
Table 1 results of mechanical property test of each of examples and comparative examples
From Table 1, it can be seen that the reactive comb compatibilizer PS-RC can realize high-efficiency compatibilizer of PC/ABS alloy with extremely low additive amount, and greatly improve mechanical properties of the material. Comparing example 1 with comparative example 5, it was found that the impact strength of PC/ABS was 52kJ/m by adding 1 part of PS-RC 2 Lifting to 81kJ/m 2 The elongation at break is increased from 66% to 200%, which shows that PS-RC can greatly improve the toughness of PC/ABS alloy, and meanwhileThe tensile strength, the bending strength and the like of the material are also improved to a small extent.
Meanwhile, compared with comparative examples 1-3, the mechanical properties of PC/ABS alloy can be improved by both compatibilizers, but under the same addition amount, the impact strength and elongation at break of PC/ABS alloy added with PS-RC are far higher than those of a group added with SMA, which shows that the compatibilizing efficiency of PS-RC is far higher than that of the traditional compatibilizer SMA.
The traditional compatibilizer is of a linear structure, so that the compatibilizer is easy to migrate into a certain phase when subjected to shearing external force, and cannot be stably distributed at the interface of two phases. And the reactive comb-structured compatibilizer can form the compatibilizer with a special structure and double branched chains through in-situ reaction. The compatibilizer has two branches, and is subjected to balanced shearing force, so that the compatibilizer can be stably distributed at the interface of two phases. The reactive comb-structure compatibilizer prepared by the invention has a special molecular structure, can realize efficient compatibilization of PC/ABS alloy, and provides a further improvement idea for the development of PC/ABS alloy.
It will be readily appreciated by those skilled in the art that the foregoing is merely illustrative of the present invention and is not intended to limit the invention, but any modifications, equivalents, improvements or the like which fall within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A reactive comb-structured compatibilizer shown in a formula (I),
wherein X is an integer between 30 and 50, y is an integer between 10 and 30, z is an integer between 3 and 12, n is an integer between 3 and 40, and X is Br or Cl.
2. The method for preparing the reactive comb structure compatibilizer as claimed in claim 1, comprising the steps of:
(1) Dispersing styrene, an initiator, a catalyst A and a catalyst ligand in an organic solvent A, and carrying out polymerization reaction for 6-24 hours at 60-130 ℃ in a nitrogen atmosphere, wherein the obtained reaction liquid A is subjected to post-treatment A to obtain a compound shown in a formula 1;
the initiator is p-bromomethylbenzoic acid or p-chloromethylbenzoic acid, the catalyst A is one of cuprous chloride or ferrous chloride, and the catalyst ligand is 2, 2-bipyridine; the mass ratio of the styrene, the initiator and the catalyst A is 100:1-4:1.5-10; the ratio of the amount of the catalyst A to the amount of the catalyst ligand is 1:3-6;
wherein n=3-40, x is Br or Cl;
(2) Dispersing the compound shown in the formula 1 and the free radical polymerization inhibitor in the step (1) in an organic solvent B, stirring for 2-7 hours at 50-130 ℃ for the first time in a nitrogen atmosphere, cooling the system to room temperature, adding a catalyst B, stirring for the second time for 10-60 minutes, adding glycidyl methacrylate, and stirring and reacting for 8-12 hours at 90-130 ℃; the obtained reaction liquid B is subjected to post-treatment B to obtain a compound shown in a formula 2;
the free radical polymerization inhibitor is hydroquinone; the catalyst B is N, N-dimethylbenzylamine, sodium hydroxide or potassium hydroxide; the ratio of the amounts of the compound shown in the formula 1, the free radical polymerization inhibitor, the catalyst B and the glycidyl methacrylate is 1:0.1-0.15: 0.015-0.06:0.5-4;
(3) Dissolving the compound shown in the formula 2 in the step (2), maleic anhydride and azodiisobutyronitrile in an organic solvent C to obtain a preparation solution; slowly dripping the preparation liquid into styrene at 60-110 ℃ in a nitrogen atmosphere, reacting for 3-12 h after dripping, and performing post-treatment C on the obtained reaction liquid C to obtain the reactive comb-structure compatibilizer shown in the formula (I);
the initiator is one or a mixture of two of azodiisobutyronitrile and azodiisoheptonitrile; the mass ratio of the compound shown in the formula 2, the initiator, the styrene and the maleic anhydride is 1:0.005-0.06: 1-5:1-6.
3. The method for preparing the reactive comb structure compatibilizer as claimed in claim 2, wherein: in the step (1), the organic solvent A is one or two mixed solvents of cyclohexanone, cyclopentanone or toluene, and the volume ratio of the styrene to the organic solvent A is 11:10 to 30 percent.
4. The method for preparing the reactive comb structure compatibilizer as claimed in claim 2, wherein: the post-treatment A in the step (1) is as follows: exposing the reaction solution A to air, putting the reaction solution A into an ice-water bath to quench the reaction, adding the reaction solution A into methanol at 0 ℃ for precipitation, and repeating the following operations to remove impurities: suction filtering, dissolving the obtained filter cake with tetrahydrofuran, and placing the obtained solution in methanol at 0 ℃ for precipitation; the precipitate obtained last time is dried to obtain the compound shown in the formula 1.
5. The method for preparing the reactive comb structure compatibilizer as claimed in claim 2, wherein: in the step (2), the organic solvent B is one of toluene, xylene and acetone, and the volume of the organic solvent B is 20-100 ml/g based on the mass of the compound shown in the formula 1.
6. The method for preparing the reactive comb structure compatibilizer as claimed in claim 2, wherein: in the step (2), the catalyst B and the glycidyl methacrylate are respectively added in the form of a catalyst B solution and a glycidyl methacrylate solution, wherein the solvent of the catalyst B solution and the solvent of the glycidyl methacrylate solution are the same as the organic solvent B, and the concentration of the catalyst B solution is 0.025mmol/mL; the concentration of the glycidyl methacrylate solution was 0.9mmol/mL.
7. The method for preparing the reactive comb structure compatibilizer as claimed in claim 2, wherein: the post-treatment B in the step (2) is as follows: the reaction solution B is put into an ice-water bath to quench reaction, and is added into methanol with the temperature of 0 ℃ to precipitate, and the following operations are repeated to remove impurities: suction filtering, dissolving the obtained filter cake with tetrahydrofuran, and placing the obtained solution in methanol at 0 ℃ for precipitation; the precipitate obtained last time is dried to obtain the compound shown in the formula 2.
8. The method for preparing the reactive comb structure compatibilizer as claimed in claim 2, wherein: in the step (3), the organic solvent C is toluene, acetone or xylene, and the volume of the organic solvent C is 10-120 ml/g based on the mass of the compound shown in the formula 2.
9. The method for preparing the reactive comb structure compatibilizer as claimed in claim 2, wherein: the post-treatment C in the step (3) is as follows: the reaction solution C is put into an ice-water bath to quench reaction, and is added into methanol with the temperature of 0 ℃ to precipitate, and the following operations are repeated to remove impurities: suction filtering, diluting the obtained filter cake with acetone, and precipitating the obtained solution in methanol at 0 ℃; and drying the precipitate obtained in the last time to obtain the reactive comb-structure compatibilizer shown in the formula (I).
10. The use of a reactive comb-structured compatibilizer according to claim 1 in the preparation of PC/ABS alloys.
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| WO2004058881A1 (en) * | 2002-12-18 | 2004-07-15 | Crompton Corporation | Styrenic polymer composites |
| CN108239242A (en) * | 2016-12-27 | 2018-07-03 | 金发科技股份有限公司 | A kind of graft copolymer and its application containing anhydride group |
| WO2018121138A1 (en) * | 2016-12-27 | 2018-07-05 | 金发科技股份有限公司 | Graft copolymer containing epoxy group and application thereof |
| CN109485795A (en) * | 2018-11-08 | 2019-03-19 | 万华化学集团股份有限公司 | A kind of copolymer compatilizer and its preparation method and application |
| CN110615873A (en) * | 2019-09-03 | 2019-12-27 | 铨盛聚碳科技股份有限公司 | Comb-shaped epoxy group-containing compatilizer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004058881A1 (en) * | 2002-12-18 | 2004-07-15 | Crompton Corporation | Styrenic polymer composites |
| CN108239242A (en) * | 2016-12-27 | 2018-07-03 | 金发科技股份有限公司 | A kind of graft copolymer and its application containing anhydride group |
| WO2018121138A1 (en) * | 2016-12-27 | 2018-07-05 | 金发科技股份有限公司 | Graft copolymer containing epoxy group and application thereof |
| CN109485795A (en) * | 2018-11-08 | 2019-03-19 | 万华化学集团股份有限公司 | A kind of copolymer compatilizer and its preparation method and application |
| CN110615873A (en) * | 2019-09-03 | 2019-12-27 | 铨盛聚碳科技股份有限公司 | Comb-shaped epoxy group-containing compatilizer and preparation method thereof |
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