CN108641073A - 一种三核有机亚锡金属催化剂及其制备方法和应用 - Google Patents
一种三核有机亚锡金属催化剂及其制备方法和应用 Download PDFInfo
- Publication number
- CN108641073A CN108641073A CN201810344465.7A CN201810344465A CN108641073A CN 108641073 A CN108641073 A CN 108641073A CN 201810344465 A CN201810344465 A CN 201810344465A CN 108641073 A CN108641073 A CN 108641073A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- added
- preparation
- moles
- lithium salts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 239000003863 metallic catalyst Substances 0.000 title claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 87
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 17
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 15
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 239000012948 isocyanate Substances 0.000 claims abstract description 10
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 9
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000004802 cyanophenyl group Chemical group 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- MZRVEZGGRBJDDB-UHFFFAOYSA-N n-Butyllithium Substances [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims abstract description 4
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 claims abstract description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 47
- 238000003756 stirring Methods 0.000 claims description 32
- JBFHTYHTHYHCDJ-UHFFFAOYSA-N gamma-caprolactone Chemical compound CCC1CCC(=O)O1 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 0.000 claims description 26
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 18
- 239000005457 ice water Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 6
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 125000001033 ether group Chemical group 0.000 claims description 2
- 239000002027 dichloromethane extract Substances 0.000 claims 1
- 125000003739 carbamimidoyl group Chemical group C(N)(=N)* 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 229920001610 polycaprolactone Polymers 0.000 abstract description 3
- 229920001228 polyisocyanate Polymers 0.000 abstract description 2
- 239000005056 polyisocyanate Substances 0.000 abstract description 2
- 238000006356 dehydrogenation reaction Methods 0.000 abstract 1
- 150000002596 lactones Chemical class 0.000 abstract 1
- NCWQJOGVLLNWEO-UHFFFAOYSA-N methylsilicon Chemical group [Si]C NCWQJOGVLLNWEO-UHFFFAOYSA-N 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 description 30
- 238000006555 catalytic reaction Methods 0.000 description 25
- 239000000047 product Substances 0.000 description 23
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 150000002148 esters Chemical class 0.000 description 17
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 16
- 125000006283 4-chlorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1Cl)C([H])([H])* 0.000 description 14
- 239000000243 solution Substances 0.000 description 13
- 239000013078 crystal Substances 0.000 description 11
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 11
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- -1 isocyanide ester Chemical class 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- PLBFUQVAZLRSRG-UHFFFAOYSA-N cyanic acid;toluene Chemical compound OC#N.CC1=CC=CC=C1 PLBFUQVAZLRSRG-UHFFFAOYSA-N 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NHOWDZOIZKMVAI-UHFFFAOYSA-N (2-chlorophenyl)(4-chlorophenyl)pyrimidin-5-ylmethanol Chemical compound C=1N=CN=CC=1C(C=1C(=CC=CC=1)Cl)(O)C1=CC=C(Cl)C=C1 NHOWDZOIZKMVAI-UHFFFAOYSA-N 0.000 description 2
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- UHOVQNZJYSORNB-MZWXYZOWSA-N benzene-d6 Chemical compound [2H]C1=C([2H])C([2H])=C([2H])C([2H])=C1[2H] UHOVQNZJYSORNB-MZWXYZOWSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000002685 polymerization catalyst Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003606 tin compounds Chemical class 0.000 description 2
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 206010018612 Gonorrhoea Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000006006 cyclotrimerization reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 235000014666 liquid concentrate Nutrition 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000013110 organic ligand Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- YBVNFKZSMZGRAD-UHFFFAOYSA-N pentamidine isethionate Chemical compound OCCS(O)(=O)=O.OCCS(O)(=O)=O.C1=CC(C(=N)N)=CC=C1OCCCCCOC1=CC=C(C(N)=N)C=C1 YBVNFKZSMZGRAD-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/22—Tin compounds
- C07F7/2284—Compounds with one or more Sn-N linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
- C08G18/022—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only the polymeric products containing isocyanurate groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2115/00—Oligomerisation
- C08G2115/02—Oligomerisation to isocyanurate groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyurethanes Or Polyureas (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
本发明提供了一种三核有机亚锡金属催化剂及其制备方法和应用。催化剂制备方法:在氮气的保护下,用两摩尔量的正丁基锂(LiBun)将两摩尔量的苯胺去氢,之后加入一摩尔量的甲基二氯硅烷,然后加入两摩尔量的苯腈,得到锂盐A,最后分别与两摩尔量或一摩尔量的SnCl2反应得到甲基硅桥联脒基亚锡催化剂B或C。该制备方法简单,用料简单易得、价格低廉、产率高且容易纯化。实验结果表明,催化剂B或C对于异氰酸酯和ε‑己内酯的聚合具有较高的催化活性,可作为制备聚异氰酸酯和高分子量的聚ε‑己内酯的催化剂。
Description
技术领域
本发明涉及脒基金属催化剂,具体而言涉及一种三核有机亚锡金属催化剂及其制备方法和应用。
背景技术
异氰酸酯聚合物与己内酯聚合物在日常生活中十分重要,它们被广泛应用于生产实践的各个方面。异氰酸酯的三聚产物可以增强聚氨酯、共聚物树脂以及涂料的物理性质,例如增强其热阻性、耐化学性、透明度和抗撞击能力等。该聚合物是一种具有特殊性能的聚合物,可以被广泛用于泡沫、涂层材料以及粘合剂等。聚己内酯是非常重要的高分子材料,其突出的优势在于具有生物可降解性能,在绿色、环保方面意义重大。该聚合物具有高聚的特性且呈现半晶型,结晶度可达45%。它还具有较好的生物相容性,可以与大多数的合成树脂相容,有很高的实用价值。异氰酸酯的聚合和己内酯的聚合与催化剂的发展休戚相关。
随着各国化学家的探索和研究,大量有新型结构的有机配体被合成,其中脒基配体因其特殊的结构而受到化学工作者的青睐。脒基化合物的结构多样,制备方法比较简单,脒基上的N-C-N结构能够与不同取代基相结合,合成多种脒基配体,进而与多种金属相结合生成很多的金属配合物,其中脒基金属锡化合物也不胜枚举。有机锡金属化合物能够有效地催化异腈酸酯环三聚合(Organometallics,1999,18,4700-4705)、ε-己内酯开环聚合(Macromolecules,1993,26,6378-6385;Macromolecules,1988,21,286-293)等多种有机物的聚合反应。现有的相关报道中催化异氰酸酯和ε-己内酯聚合的条件和催化效率均有提高的空间。因此,研发用于催化合成聚异氰酸酯和聚ε-己内酯的新型金属催化剂,具有极高的理论意义和应用前景。
发明内容
本发明的目的是提供一种三核有机亚锡金属催化剂及其制备方法和应用,该催化剂对异氰酸酯和ε-己内酯聚合均有较高的催化活性。该催化剂制备方法简便,原料易得。
本发明提供的一种三核有机亚锡金属催化剂,其结构式为:
或者:
本发明还提供一种制备所述三核有机亚锡金属催化剂的方法,其特征在于,包括如下步骤:
1)锂盐的制备:在氮气的保护下,冰水浴中,将2摩尔的苯胺和2摩尔的正丁基锂反应,溶剂为乙醚,搅拌反应至室温,4小时后,再次冷却至0℃加入1摩尔的甲基二氯硅烷,再加入2摩尔的苯腈,当溶液自然升温到室温以后,保持搅拌反应8小时,得到锂盐的乙醚溶液,过滤后浓缩,结晶得到无色锂盐A;
2)催化剂的制备:在氮气的保护下,冰水浴中,把SnCl2加入到锂盐A的四氢呋喃溶液中,SnCl2与锂盐A的摩尔比为2:1或1:1,当溶液自然升温到室温以后,保持搅拌反应12小时,用二氯甲烷萃取,过滤,浓缩得到三核有机亚锡金属催化剂B或C。
上述催化剂B或C对异氰酸酯和ε-己内酯聚合均具有较高的催化活性,可用作异氰酸酯和ε-己内酯聚合催化剂。
与现有技术相比本发明的有益效果:1.合成催化剂所使用的原料简单易得、价格低廉、制备方法简单、易于纯化;2.催化剂用于异氰酸酯和ε-己内酯聚合有较高的催化活性,且在催化对甲苯异氰酸酯时,若不添加溶剂,催化活性更高,反应更加绿色环保;3.拓宽了桥联脒基过渡金属异氰酸酯和ε-己内酯聚合催化剂的领域。
附图说明
图1为催化剂B的晶体结构图
图2为催化剂C的晶体结构图
具体实施方式
下面结合附图对本发明的实施例作进一步阐述,但这些实施例并非用于限制本发明的保护范围。
实施例1 催化剂的制备及表征
(1)锂盐的制备
在氮气氛围中,将苯胺(0.18ml,2mmol)溶于Et2O(30ml)中,在冰水浴条件下,加入nBuLi(0.8ml,2.5M,2mmol),搅拌至恢复室温,反应5h,溶液由无色变为淡黄色。在0℃条件下加入SiHMeCl2(0.1ml,1mmol),持续搅拌,直到恢复室温,反应搅拌过夜,淡黄色溶液变为黄色偏白浊液。静置后过滤,滤液为黄色溶液。继续在冰水浴条件下加入nBuLi(0.8ml,2.5M,2mmol),搅拌至恢复室温,反应5h,溶液变为黄白色浊液,然后在冰水浴中加入苯腈(0.2ml,2mmol),恢复室温后持续搅拌过夜,变为黄浊液。静置后过滤,滤液浓缩,放置一晚,无晶体析出。抽干换THF,-30℃条件下,放置一周后,慢慢析出无色块状晶体,即为甲基硅桥联脒基锂盐,产率90%。1H-NMR(C6D6,300.00MHz,ppm):δ7.152–7.120(m,20H),3.540(s,16H),1.376(s,3H).元素分析理论值:C,70.55;H,7.82;N,7.47%.实测值:C,70.15;H,7.72;N,7.59%。
(2)催化剂B的制备
在氮气保护下,将锂盐(1.47g,2mmol)溶解于THF溶液,溶液呈黄色,冰水浴条件下,按2:1的比例加入SnCl2(0.758g,4mmol),恢复室温后搅拌过夜,溶液变为灰色浊液,抽干溶剂,用CH2Cl2萃取,静置后过滤,滤液为黄棕色溶液,浓缩至15ml,室温下放置,两天后析出无色块状晶体,即为三核有机亚锡金属催化剂(以下简称催化剂B),产率:88.3%。1H-NMR(C6D6,300.00MHz,ppm):δ7.754–6.934(m,30H),1.015–0.091(m,12H).13C-NMR(C6D6,75.00MHz):δ167.70,132.37,130.93,130.07,129.47,129.04,128.85,127.91.元素理论分析值:C,66.53;H,5.79;N,9.46%.实测值:C,66.49;H,5.73;N,9.21%.
晶体参数:化学式C40H33N6SiCl3Sn3,正交晶系(Orthorhombic),空间群-P,晶胞参数α=90.00°,β=90°,γ=90.00°,V=9851(3),Z=8。晶体结构见图1。
部分键长:Sn1-N6 2.253(8),Sn2-N2 2.163(8),Sn3-N5 2.231(9),Sn3-Cl32.467(4),Si1-N6 1.727(8),Si1-N4 1.740(8),Si1-N2 1.743(8),键角(°):N4-Si1-C40108.2(5),N6-Sn1-N1 93.8(3),N6-Si1-N2 106.6(4),N5-Sn3-Cl3 89.7(3),N2-Si1-C40109.5(5)。
(3)催化剂C的制备
在氮气保护下,在化合物锂盐(1.47g,2mmol)中加入THF溶液,冰水浴条件下,按1:1的比例加入SnCl2(0.380g,2mmol),恢复室温后搅拌过夜,溶液变为灰绿色浊液,抽干溶剂,用CH2Cl2萃取,静置后过滤,滤液为黄色溶液,浓缩至15ml,室温下放置,一天后析出淡黄色块状晶体,即为三核有机亚锡金属催化剂(以下简称催化剂C),产率:93.4%。1H-NMR(C6D6,300.00MHz,ppm):δ7.937–6.980(m,55H).13C-NMR(C6D6,75.00MHz):δ153.98,150.19,135.86,130.45,129.50,128.40,126.64,122.74,121.34.元素理论分析值:C,52.67;H,4.11;N,8.26%..实测值:C,52.15;H,4.03;N,8.09%.
晶体参数:化学式C173H134N24SiSn6,单斜晶系(Monoclinic),空间群P-1,晶胞参数α=89.124(1)°,β=69.573(1)°,γ=67.422(1)°,V=3599.8(3),Z=1。晶体结构见图2。
部分键长:Si1-N4 1.740(4),Sn3-N10 2.183(4),Si2-N10 1.728(4),Sn3-N52.530(4),N7-C47 1.319(6),键角(°):N1-C7-N2 120.9(4),N3-C20-N4 118.9(4),N5-C33-N6 120.2(4),N7-C47-N8 119.6(4),N9-C60-N10 119.7(4),N11-C73-N12120.9(4)。
实施例2
(1)催化剂B的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),再加入乙醚(1ml),然后以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.037g,聚合物的熔点为265.3℃。
实施例3
(1)催化剂B的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),再加入二氯甲烷(1ml),然后以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.048g,聚合物的熔点为265.3℃。
实施例4
(1)催化剂B的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),再加入四氢呋喃(1ml),然后以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.061g,聚合物的熔点为265.3℃。
实施例5
(1)催化剂B的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),再以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.067g,聚合物的熔点为265.3℃。
实施例6
(1)催化剂C的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),再加入乙醚(1ml),然后以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,再次抽干,得到产品0.032g,聚合物的熔点为265.3℃。
实施例7
(1)催化剂C的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),再加入二氯甲烷(1ml),然后以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,再次抽干,得到产品0.038g,聚合物的熔点为265.3℃。
实施例8
(1)催化剂C的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),再加入四氢呋喃(1ml),然后以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,再次抽干,得到产品0.058g,聚合物的熔点为265.3℃。
实施例9
(1)催化剂C的制备同实施例1。
(2)催化对甲苯异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),再以相对催化剂3:100的比例加入对甲苯异氰酸酯(0.085ml,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.065g,聚合物的熔点为265.3℃。
实施例10
(1)催化剂B的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),再加入乙醚(1ml),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.048g,聚合物的熔点为268.2℃。
实施例11
(1)催化剂B的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),再加入二氯甲烷(1ml),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.057g,聚合物的熔点为268.2℃。
实施例12
(1)催化剂B的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),再加入四氢呋喃(1ml),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.0627g,聚合物的熔点为268.2℃。
实施例13
(1)催化剂B的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,抽干,得到产品0.068g,聚合物的熔点为268.2℃。
实施例14
(1)催化剂C的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在氮气保护下,在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),再加入乙醚(1ml),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,再次抽干,得到产品0.050g,聚合物的熔点为268.2℃。
实施例15
(1)催化剂C的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),再加入二氯甲烷(1ml),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,再次抽干,得到产品0.065g,聚合物的熔点为268.2℃。
实施例16
(1)催化剂C的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),再加入四氢呋喃(1ml),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,再次抽干,得到产品0.068g,聚合物的熔点为268.2℃。
实施例17
(1)催化剂C的制备同实施例1。
(2)催化对氯苯基异氰酸酯聚合:在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),然后以相对催化剂3:100的比例加入对氯苯基异氰酸酯(0.095g,0.67mmol),20℃下搅拌18h,过滤,抽干,用乙醚(1ml)洗三次,再次抽干,得到产品0.085g,聚合物的熔点为268.2℃。
实施例18
(1)催化剂B的制备同实施例1。
(2)催化ε-己内酯聚合:氮气氛围中,在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),用注射器注入一定量的甲苯(1ml),然后以催化剂B与ε-己内酯比例为1:100加入ε-己内酯(0.21ml,2mmol),在110℃下搅拌,直到反应搅至粘稠时,加入两滴醋酸,然后继续搅拌20min后加入50ml甲醇,过滤,抽干,得到产品0.139g。所得聚合物的重均分子量为2.543×104g·mol-1,分子量分布为1.82,聚合物的熔点为59.8℃。
实施例19
(1)催化剂B的制备同实施例1。
(2)催化ε-己内酯聚合:在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),用注射器注入一定量的甲苯(1ml),然后以催化剂B与ε-己内酯比例为1:200加入ε-己内酯(0.43ml,4mmol),在110℃下搅拌,直到反应搅至粘稠时,加入两滴醋酸,然后继续搅拌20min后加入50ml甲醇,过滤,抽干,得到产品0.301g。所得聚合物的重均分子量为2.410×104g·mol-1,分子量分布为1.91,聚合物的熔点为59.8℃。
实施例20
(1)催化剂B的制备同实施例1。
(2)催化ε-己内酯聚合:在Schlenk瓶中加入催化剂B(0.025g,0.02mmol),用注射器注入一定量的甲苯(1ml),然后以催化剂B与ε-己内酯比例为1:300加入ε-己内酯(0.64ml,6mmol),在110℃下搅拌,直到反应搅至粘稠时,加入两滴醋酸,然后继续搅拌20min后加入50ml甲醇,过滤,抽干,得到产品0.499g。所得聚合物的重均分子量为2.239×104g·mol-1,分子量分布为1.79,聚合物的熔点为59.8℃。
实施例21
(1)催化剂C的制备同实施例1。
(2)催化ε-己内酯聚合:在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),用注射器注入一定量的甲苯(1ml),然后以催化剂C与ε-己内酯比例为1:100加入ε-己内酯(0.21ml,2mmol),在110℃下搅拌,直到反应搅至粘稠时,加入两滴醋酸,然后继续搅拌20min后加入50ml甲醇,过滤,抽干,得到产品0.153g。所得聚合物的重均分子量为2.018×104g·mol-1,分子量分布为1.93,聚合物的熔点为59.8℃。
实施例22
(1)催化剂C的制备同实施例1。
(2)催化ε-己内酯聚合:在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),用注射器注入一定量的甲苯(1ml),然后以催化剂C与ε-己内酯比例为1:200加入ε-己内酯(0.43ml,4mmol),在110℃下搅拌,直到反应搅至粘稠时,加入两滴醋酸,然后继续搅拌20min后加入50ml甲醇,过滤,抽干,得到产品0.329g。所得聚合物的重均分子量为2.108×104g·mol-1,分子量分布为1.76,聚合物的熔点为59.8℃。
实施例23
(1)催化剂C的制备同实施例1。
(2)催化ε-己内酯聚合:在Schlenk瓶中加入催化剂C(0.066g,0.02mmol),用注射器注入一定量的甲苯(1ml),然后以催化剂C与ε-己内酯比例为1:300加入ε-己内酯(0.64ml,6mmol),在110℃下搅拌,直到反应搅至粘稠时,加入两滴醋酸,然后继续搅拌20min后加入50ml甲醇,过滤,抽干,得到产品0.547g。所得聚合物的重均分子量为2.242×104g·mol-1,分子量分布为1.88,聚合物的熔点为59.8℃。
Claims (4)
1.一种三核有机亚锡金属催化剂,其特征在于,具有如下结构式:
或者:
2.一种制备权利要求1所述催化剂的方法,其特征在于,包括如下步骤:
1)锂盐的制备:在氮气的保护下,冰水浴中,将2摩尔的苯胺和2摩尔的正丁基锂反应,溶剂为乙醚,搅拌反应至室温,4小时后,再次冷却至0℃加入1摩尔的甲基二氯硅烷,再加入2摩尔的苯腈,当溶液自然升温到室温以后,保持搅拌反应8小时,得到锂盐的乙醚溶液,过滤后浓缩,结晶得到无色锂盐A;
2)催化剂的制备:在氮气的保护下,冰水浴中,把SnCl2加入到锂盐A的四氢呋喃溶液中,SnCl2与锂盐A的摩尔比为2:1或1:1,当溶液自然升温到室温以后,保持搅拌反应12小时,用二氯甲烷萃取,过滤,浓缩得到三核有机亚锡金属催化剂B或C。
3.如权利要求1所述的三核有机亚锡金属催化剂在异氰酸酯聚合中的应用。
4.如权利要求1所述的三核有机亚锡金属催化剂在ε-己内酯聚合中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810344465.7A CN108641073B (zh) | 2018-04-17 | 2018-04-17 | 一种三核有机亚锡金属催化剂及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810344465.7A CN108641073B (zh) | 2018-04-17 | 2018-04-17 | 一种三核有机亚锡金属催化剂及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108641073A true CN108641073A (zh) | 2018-10-12 |
CN108641073B CN108641073B (zh) | 2020-09-29 |
Family
ID=63746275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810344465.7A Expired - Fee Related CN108641073B (zh) | 2018-04-17 | 2018-04-17 | 一种三核有机亚锡金属催化剂及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108641073B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111153931A (zh) * | 2020-01-17 | 2020-05-15 | 山西大学 | 一种2-吡啶甲烷亚胺锡(ii)化合物及其制备方法和应用 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1764379A1 (en) * | 2005-09-19 | 2007-03-21 | DSM IP Assets B.V. | Polymerization catalyst comprising an amidine ligand |
CN101500989A (zh) * | 2006-06-28 | 2009-08-05 | 哈佛学院院长等 | 四脒基金属(iv)化合物及其在气相沉积中的用途 |
WO2011156699A1 (en) * | 2010-06-11 | 2011-12-15 | Air Products And Chemicals, Inc. | Complexes of imidazole ligands |
-
2018
- 2018-04-17 CN CN201810344465.7A patent/CN108641073B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1764379A1 (en) * | 2005-09-19 | 2007-03-21 | DSM IP Assets B.V. | Polymerization catalyst comprising an amidine ligand |
CN101500989A (zh) * | 2006-06-28 | 2009-08-05 | 哈佛学院院长等 | 四脒基金属(iv)化合物及其在气相沉积中的用途 |
WO2011156699A1 (en) * | 2010-06-11 | 2011-12-15 | Air Products And Chemicals, Inc. | Complexes of imidazole ligands |
Non-Patent Citations (1)
Title |
---|
贺宏竹等: ""均配亚锡脒基化合物的合成及其对对甲苯异氰酸酯和ε-己内酯的催化"", 《山西大学学报(自然科学版)》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111153931A (zh) * | 2020-01-17 | 2020-05-15 | 山西大学 | 一种2-吡啶甲烷亚胺锡(ii)化合物及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN108641073B (zh) | 2020-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6133402A (en) | Polycarbonates made using high activity catalysts | |
JP4440888B2 (ja) | 重合体幹内に4重水素結合単位を含む超分子重合体の製造 | |
Kim et al. | Titanium alkoxides as initiators for the controlled polymerization of lactide | |
Darensbourg et al. | Biometal derivatives as catalysts for the ring-opening polymerization of trimethylene carbonate. Optimization of the Ca (II) Salen catalyst system | |
Sun et al. | Synthesis of isosorbide-based polycarbonates via melt polycondensation catalyzed by quaternary ammonium ionic liquids | |
CN110938087A (zh) | 具有亲电亲核双功能的有机无金属催化剂及其制备方法和应用 | |
CN102585134B (zh) | 通过卡宾催化的氨基甲酸酯和聚氨基甲酸酯的合成 | |
CN102924292A (zh) | 手性四齿胺基苯胺基配体、其铝化合物以及制备方法和应用 | |
CN102491874A (zh) | 金属烷氧基配合物、催化剂组合物及聚己内酯或聚丙交酯的制备方法 | |
CN101418010B (zh) | 桥联β-二亚胺双核铝化合物及其制备方法和应用 | |
Edelmann | Homogeneous catalysis using lanthanide amidinates and guanidinates | |
CN102268030B (zh) | 含氮双酚氧基配体双核铝化合物及其制备方法和应用 | |
CN110003452B (zh) | 一种催化剂组合物及聚丙交酯的制备方法 | |
Li et al. | Phenoxyimine ligands bearing nitrogen-containing second coordination spheres for zinc catalyzed stereoselective ring-opening polymerization of rac-lactide | |
CN108641073A (zh) | 一种三核有机亚锡金属催化剂及其制备方法和应用 | |
CN101759712B (zh) | 不对称双脒基铝化合物及其制备方法和应用 | |
CN110563941B (zh) | 一种医药用生物可降解高分子材料聚己内酯的制备方法 | |
CN109206604B (zh) | 一种催化剂组合物及聚丙交酯的制备方法 | |
CN104592501A (zh) | 一种聚己内酯的制备方法 | |
Liu et al. | The homoleptic bis (β-quinolylenolate) zinc catalysts for the ring-opening polymerization of ε-caprolactone: Kinetics and mechanism | |
CN104497280A (zh) | 一种聚乙交酯的制备方法 | |
WO1998052995A1 (en) | Method for the production of a branched macromolecule, the branched macromolecule and uses thereof | |
CN101591349B (zh) | 氮桥联双芳氧基钇对二苄氧化合物及其制备和应用 | |
Matiwane et al. | (Pyrazolylethyl-amine) zinc (II) carboxylate complexes as catalysts for the copolymerization of CO2 and cyclohexene oxide | |
CN114853800B (zh) | 一种硅桥联吡啶基[n,n]锂配合物及制备方法和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 |
|
CF01 | Termination of patent right due to non-payment of annual fee |