WO2020192381A1 - 具有自修复功能的共聚聚碳酸酯及其制备方法 - Google Patents

具有自修复功能的共聚聚碳酸酯及其制备方法 Download PDF

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WO2020192381A1
WO2020192381A1 PCT/CN2020/077931 CN2020077931W WO2020192381A1 WO 2020192381 A1 WO2020192381 A1 WO 2020192381A1 CN 2020077931 W CN2020077931 W CN 2020077931W WO 2020192381 A1 WO2020192381 A1 WO 2020192381A1
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self
polycarbonate
product
preparing
catalyst
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French (fr)
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殷鹏刚
程国强
李敬伟
党光辉
朱纪辉
史吉华
陈华祥
陈颖
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北京濮源新材料技术研究院(普通合伙)
濮阳市盛通聚源新材料有限公司
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/20General preparatory processes
    • C08G64/30General preparatory processes using carbonates
    • C08G64/307General preparatory processes using carbonates and phenols
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/64Polyesters containing both carboxylic ester groups and carbonate groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/04Aromatic polycarbonates
    • C08G64/06Aromatic polycarbonates not containing aliphatic unsaturation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/16Aliphatic-aromatic or araliphatic polycarbonates
    • C08G64/1608Aliphatic-aromatic or araliphatic polycarbonates saturated
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/18Block or graft polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2230/00Compositions for preparing biodegradable polymers

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  • the invention belongs to the field of copolymerized polymers, and specifically relates to a copolymerized polycarbonate with self-repairing function and a preparation method thereof.
  • Polycarbonate is a heat-shrinkable engineering plastic with excellent comprehensive performance. It has high light transmittance, high impact resistance, high toughness, weather resistance and excellent electrical insulation. It is widely used in the automotive industry, instrumentation, electronic appliances , Building materials and other fields.
  • Random copolymerization is a simple and effective way to adjust and improve the properties of polymer materials. As polycarbonate is used in outdoor applications, scratches and cracks will appear over time or external forces, resulting in poor surface aesthetics and, in some cases, structural integrity failure.
  • US Patent No. 8,846,801 discloses the use of polyurethane incorporating carbon nanotubes to introduce inherent healing properties into polycarbonate while maintaining excellent mechanical properties and shape memory. But it may affect transparency and limit its application.
  • US Patent No. 7998529 discloses a fog-free and healing coating on a polycarbonate substrate, in which two isocyanate groups per mole of polycarbonate have been introduced into the polymer backbone and the resulting substrate has been coated with polyisocyanate healing agent.
  • 2014/003794 discloses a coating of a healing material on a polycarbonate substrate, wherein the healing layer is composed of a mixture of polycarbonate polyol, polyisocyanate, solvent and surfactant.
  • the healing layer is composed of a mixture of polycarbonate polyol, polyisocyanate, solvent and surfactant.
  • Cisokia CN108699228A discloses an inherently healing polycarbonate in which aromatic disulfides are introduced into the main chain.
  • the healing properties are attributed to sulfur-sulfur bonds and their replacement ability.
  • the modification process of aromatic diols does not meet environmental requirements, and the destruction or oxidation of disulfide bonds will also have a certain impact on the environment.
  • An object of the present invention is to provide a method for preparing copolycarbonate with self-repairing function.
  • the preparation method of a copolymerized polycarbonate with self-healing function of the present invention includes the following steps: S101: Firstly, the reducing sugar, the oxetane derivative and the first catalyst are mixed and then heated to 50°C to 80°C , The reaction is stirred for 0.5h-2h under protective gas conditions to obtain the first product; wherein the molar ratio of the reducing sugar to the oxetane derivative is (0.5-0.8):1; S102: The first product is added with a glycol, a dibasic ester and a second catalyst, and then heated to 180°C to 220°C for 2h to 4h to obtain an oligomer; wherein, the first product, the glycol and the second catalyst The molar ratio of the ester is (0.07 ⁇ 0.13): (0.9 ⁇ 1.0):1; S103: The oligomer is heated to 230°C ⁇ 270°C and kept for 1h ⁇ 3h to obtain a copolymer with self-repairing function.
  • the self-repairing copolymerized polycarbonate material prepared by the method of the present invention has self-repairing and biodegradability.
  • Self-healing copolycarbonate is a modified reducing sugar introduced into the main chain of polycarbonate, which belongs to block copolymerization, which ensures the consistency and uniformity of the product.
  • the introduction of the main chain block is green and environmentally friendly, which has not changed the original intention of the clean production of polycarbonate.
  • the method for preparing the self-repairing copolymerized polycarbonate of the present invention may also have the following additional technical features:
  • the reducing sugar is at least one of glucose, fructose, galactose, lactose and maltose.
  • the oxetane derivative is at least 3-(chloromethyl)-3-methyloxetane, 3-(bromomethyl)-3-methyl One of oxetane, 3-(bromomethyl)-3-ethyloxetane and 3-(chloromethyl)-3-ethyloxetane.
  • the catalyst is a Lewis base.
  • the catalyst is at least one of KOH, K 2 CO 3 and CsCO 3 .
  • the protective gas is nitrogen.
  • the dihydric alcohol is bisphenol A
  • the dihydric ester is diphenyl carbonate.
  • the mass of the first catalyst is 0.05% to 0.1% of the mass of the reducing sugar.
  • the ratio of the total molar mass of the first product and the diol to the molar mass of the dibasic ester is 1.03: 1 ⁇ n 1 : n 2 ⁇ 1.1: 1;
  • n 1 represents the total molar mass of the first product and the glycol
  • n 2 represents the molar mass of the dibasic ester.
  • Another object of the present invention is to provide a copolymerized polycarbonate with self-repair function prepared by the method.
  • Figure 1a is an electronic scan of scratches made on the surface of a product of an embodiment of the invention with a diamond tip;
  • Figure 1b is an electronic scan of the scratches of Figure 1a after self-repair.
  • test materials used in the following examples are all purchased from conventional reagent stores.
  • the quantitative experiments in the following examples are all set to three repeated experiments, and the data is the average value of the three repeated experiments or the average ⁇ standard deviation.
  • Example 1 to Example 4 are made into a 4cm*4cm film, and a diamond tip is used to perform a scratch test on the surface. Expose the artificial scratches to 120W fluorescent ultraviolet light with a wavelength of 302nm for 30 minutes. It can be seen that after self-repair, the original clear scratches have almost disappeared.
  • the self-healing co-polycarbonate material prepared by the method of the present invention has self-healing and biodegradability.
  • Self-healing copolycarbonate is a modified reducing sugar introduced into the main chain of polycarbonate, which belongs to block copolymerization, which ensures the consistency and uniformity of the product.
  • the introduction of the main chain block is green and environmentally friendly, which has not changed the original intention of the clean production of polycarbonate.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

本发明涉及一种具有自修复功能的共聚聚碳酸酯及其制备方法,所述方法包括如下步骤:首先将还原性糖、氧杂环丁烷衍生物和第一催化剂混合后加热到50℃~80℃,搅拌反应0.5h~2h,得到第一产物;向第一产物中加入二元醇、二元酯和第二催化剂,然后加热至180℃~220℃保温反应2h~4h,得到低聚物;将低聚物加热至230℃~270℃并保温反应1h~3h,得到具有自修复功能的共聚聚碳酸酯。本发明的方法制备的自修复共聚聚碳酸酯材料具有自修复性和可生物降解性,保证了产品的一致性和均匀性。另外,引入主链的嵌段绿色环保,未改变聚碳酸酯清洁生产的初衷。

Description

具有自修复功能的共聚聚碳酸酯及其制备方法 技术领域
本发明属于共聚聚合物领域,具体涉及一种具有自修复功能的共聚聚碳酸酯及其制备方法。
背景技术
聚碳酸酯是一种综合性能优越的热缩性工程塑料,具有高透光率、高抗冲、高韧性、耐候性和优异的电绝缘性,被广泛应用在汽车工业、仪表仪器、电子电器、建筑材料等领域。
为了使聚碳酸酯树脂能够应用于更广泛的领域,根据所应用领域热性对聚碳酸酯进行改性,进而改善聚碳酸酯的某些特性,这是目前研究的重点。
无规共聚是调节和改善聚合物材料性能的一种简单而有效的重要手段。因聚碳酸酯在户外应用中随着时间或者外力影响会出现划痕和裂缝,导致表面美观性差,并且在一些情况下,结构完整性失效。
自修复损伤能力的智能材料可以对产生的划痕和裂缝进行自主修复。美国专利号8846801公开了使用并入有碳纳米管的聚氨酯以将固有愈合性质引入到聚碳酸酯中同时保持优异的机械性质和形状记忆。但可能会影响透明度,限制其应用。美国专利号7998529公开了聚碳酸酯基材上的无雾和愈合涂层,其中每摩尔聚碳酸酯的两个异氰酸酯基已被引入聚合物主链中并且所得基材已被涂布有聚异氰酸酯愈合剂。美国专利公开号2014/003794公开了聚碳酸酯基材上的愈合材料的涂层,其中愈合层由聚碳酸酯多元醇、聚异氰酸酯、溶剂和表面活性剂的混合物组成。然而,由于愈合机理由不可逆的交联机理驱动,这种系统不能多次愈合损伤。
中国专利公开号CN108699228A公开了一种固有愈合聚碳酸酯,在主链中 引入芳香族二硫化物,愈合性质归因于硫硫键和其置换能力。但芳香族二醇改性过程并不符合环保要求,二硫键的破坏或氧化也会对环境有一定的影响。
发明内容
本发明的一个目的在于提出一种具有自修复功能的共聚聚碳酸酯的制备方法。
本发明的一种具有自修复功能的共聚聚碳酸酯的制备方法,包括如下步骤:S101:首先将还原性糖、氧杂环丁烷衍生物和第一催化剂混合后加热到50℃~80℃,在保护气体条件下搅拌反应0.5h~2h,得到第一产物;其中,所述还原性糖与所述氧杂环丁烷衍生物的摩尔比为(0.5~0.8):1;S102:向所述第一产物中加入二元醇、二元酯和第二催化剂,然后加热至180℃~220℃保温反应2h~4h,得到低聚物;其中,所述第一产物、二元醇和二元酯的摩尔比为(0.07~0.13):(0.9~1.0):1;S103:将所述低聚物加热至230℃~270℃并保温反应1h~3h,得到具有自修复功能的共聚聚碳酸酯。
本发明的方法制备的自修复共聚聚碳酸酯材料具有自修复性和可生物降解性。自修复共聚聚碳酸酯是在聚碳酸酯主链上引入改性的还原性糖类,属于嵌段共聚,保证了产品的一致性和均匀性。另外,引入主链的嵌段绿色环保,未改变聚碳酸酯清洁生产的初衷。
另外,本发明上述的具有自修复功能的共聚聚碳酸酯的制备方法,还可以具有如下附加的技术特征:
进一步地,在所述步骤S101中,所述还原性糖至少为葡萄糖、果糖、半乳糖、乳糖和麦芽糖中的一种。
进一步地,在所述步骤S101中,所述氧杂环丁烷衍生物至少为3-(氯甲基)-3-甲基氧杂环丁烷、3-(溴甲基)-3-甲基氧杂环丁烷、3-(溴甲基)-3-乙基氧杂环丁烷和3-(氯甲基)-3-乙基氧杂环丁烷中的一种。
进一步地,在所述步骤S101中,所述催化剂为Lewis碱。
进一步地,在所述步骤S101中,所述催化剂至少为KOH、K 2CO 3和CsCO 3中的一种。
进一步地,在所述步骤S101中,所述保护气体为氮气。
进一步地,在所述步骤S102中,所述二元醇为双酚A,所述二元酯为碳酸二苯酯。
进一步地,在所述步骤S101中,所述第一催化剂的质量为所述还原性糖的质量的0.05%~0.1%。
进一步地,在所述步骤S102中,所述第一产物与所述二元醇的总的摩尔质量与所述二元酯的摩尔质量之比为1.03:1≤n 1:n 2≤1.1:1;其中,n 1表示所述第一产物与所述二元醇的总的摩尔质量,n 2表示所述二元酯的摩尔质量。
本发明的另一个目的在于提出所述的方法制备的具有自修复功能的共聚聚碳酸酯。
本发明的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本发明的实践了解到。
附图说明
图1a是用金刚石尖端在本发明实施例产品表面制造的划痕的电子扫描图;
图1b是图1a划痕处进行自修复之后的电子扫描图。
具体实施方式
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。
下述实施例中的实验方法,如无特殊说明,均为常规方法。
下述实施例中所用的试验材料,如无特殊说明,均为自常规试剂商店购买 得到的。
以下实施例中的定量试验,均设置三次重复实验,数据为三次重复实验的平均值或平均值±标准差。
实施例一
(a)将1.6mol葡萄糖、2mol的3-氯甲基-3甲基-环氧丁烷和占比葡萄糖质量0.1%的催化剂碳酸铯在N 2保护下,在80℃反应0.5h得到产物1;(b)在得到的产物1中加入二元醇和二元酯(三者摩尔比为0.07:1:1),升温至220℃反应2h得到低聚物;(c)将低聚物继续升温至270℃后继续反应1.5h得到聚碳酸酯共聚物。
实施例二
(a)将1mol葡萄糖、2mol的3-氯甲基-3甲基-环氧丁烷和占比葡萄糖质量0.05%的催化剂碳酸铯在N 2保护下,在50℃反应2h得到产物1;(b)在得到的产物1中加入二元醇和二元酯(三者摩尔比为0.13:0.9:1),升温至180℃反应4h得到低聚物;(c)将低聚物继续升温至230℃后继续反应3h得到聚碳酸酯共聚物。
实施例三
(a)将1.8mol半乳糖、2mol的3-溴甲基-3甲基-环氧丁烷和占比葡萄糖质量0.08%的催化剂氢氧化钾在N 2保护下,在70℃反应1.5h得到产物1;(b)在得到的产物1中加入二元醇和二元酯(三者摩尔比为0.1:1:1),升温至210℃反应4h得到低聚物;(c)将低聚物继续升温至250℃后继续反应2h得到聚碳酸酯共聚物。
实施例四
(a)将1.8mol半乳糖、2mol的3-溴甲基-3甲基-环氧丁烷和占比葡萄糖质量0.08%的催化剂氢氧化钾在N 2保护下,在70℃反应1.5h得到产物1;(b)在 得到的产物1中加入二元醇和二元酯(三者摩尔比为0.1:1:1),升温至210℃反应4h得到低聚物;(c)将低聚物继续升温至250℃后继续反应2h得到聚碳酸酯共聚物。
如图1所示,实施例一~实施例四得到的产品制成4cm*4cm的膜,用金刚石尖端在其表面进行划痕实验。将人为制造的划痕暴露于120W的光波长为302nm的荧光紫外等下30min。可见,自修复后,原本清晰的划痕,几乎消失不见。
其原理可能如公式一所示:
公式一:
Figure PCTCN2020077931-appb-000001
综上,本发明的方法制备的自修复共聚聚碳酸酯材料具有自修复性和可生物降解性。自修复共聚聚碳酸酯是在聚碳酸酯主链上引入改性的还原性糖类,属于嵌段共聚,保证了产品的一致性和均匀性。另外,引入主链的嵌段绿色环保,未改变聚碳酸酯清洁生产的初衷。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,包括如下步骤:
    S101:首先将还原性糖、氧杂环丁烷衍生物和第一催化剂混合后加热到50℃~80℃,在保护气体条件下搅拌反应0.5h~2h,得到第一产物;其中,所述还原性糖与所述氧杂环丁烷衍生物的摩尔比为(0.5~0.8):1;
    S102:向所述第一产物中加入二元醇、二元酯和第二催化剂,然后加热至180℃~220℃保温反应2h~4h,得到低聚物;其中,所述第一产物、二元醇和二元酯的摩尔比为(0.07~0.13):(0.9~1.0):1;
    S103:将所述低聚物加热至230℃~270℃并保温反应1h~3h,得到具有自修复功能的共聚聚碳酸酯。
  2. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S101中,所述还原性糖至少为葡萄糖、果糖、半乳糖、乳糖和麦芽糖中的一种。
  3. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S101中,所述氧杂环丁烷衍生物至少为3-(氯甲基)-3-甲基氧杂环丁烷、3-(溴甲基)-3-甲基氧杂环丁烷、3-(溴甲基)-3-乙基氧杂环丁烷和3-(氯甲基)-3-乙基氧杂环丁烷中的一种。
  4. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S101中,所述催化剂为Lewis碱。
  5. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S101中,所述催化剂至少为KOH、K 2CO 3和CsCO 3中的一种。
  6. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S101中,所述保护气体为氮气。
  7. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S102中,所述二元醇为双酚A,所述二元酯为碳酸二苯酯。
  8. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S101中,所述第一催化剂的质量为所述还原性糖的质量的0.05%~0.1%。
  9. 根据权利要求1所述的具有自修复功能的共聚聚碳酸酯的制备方法,其特征在于,在所述步骤S102中,所述第一产物与所述二元醇的总的摩尔质量与所述二元酯的摩尔质量之比为1.03:1≤n 1:n 2≤1.1:1;其中,n 1表示所述第一产物与所述二元醇的总的摩尔质量,n 2表示所述二元酯的摩尔质量。
  10. 权利要求1-9任一项所述的方法制备的具有自修复功能的共聚聚碳酸酯。
PCT/CN2020/077931 2019-03-26 2020-03-05 具有自修复功能的共聚聚碳酸酯及其制备方法 WO2020192381A1 (zh)

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