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Research and Development on Preparation of Newly Basic Resins for Paint: Multi-Functional Graft Copolymers Having Methacrylates as Grafts.

新型涂料用基础树脂制备研究进展：以甲基丙烯酸酯为接枝物的多功能接枝共聚物。

基本信息

批准号：
62850156
负责人：
FUJIMOTO Teruo
金额：
$ 4.42万
依托单位：
Nagaoka University of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

项目摘要

We attained our object: we prepared the graft copolymers having multifunctions and low viscosity to develop newly basic resins for paint. The results are specifically described below.1. 1-Phenyl-1-(4-vinylphenyl)ethylene(PVPE) and p-methylstyrene(PMS) were polymerized in toluene at -78 c under high vacuum to give copolymers ( Polymer backbones) in 100% conversion, when trifluoromethylsulfonic acid was used as an initiator.2 Vinyl group of PVPE for the polymer backbone was metalized by n-BuLi to give a multi-functionally macromolecular initiator in 80% conversion.3. The macromolecular initiator reacted with methyl methacrylate in toluene under high vacuum to give graft copolymers, having functional groups such as alcohols and/or acids at the ends of the grafts.4. Poly(aminostyrenes-b-MMA) block copolymers were anionically prepared in toluene by use of 1,1-diphenylethylene. This result is useful to prepare graft copolymers having amino groups in the grafts.5. We carried out a large-scaled preparation of the graft copolymers(5kg) by use of large-scaled glasswares(50 liter flask for polymerization).6. The graft copolymers were cross-linked by isocyanate compounds to give coating films, showing good quantity in brilliance. from the results of this subject, graft copolymers having poly(n-buthylacrylate) should show better quqntity in impact-resistant paint.

我们达到了研制多功能、低粘度的接枝共聚物，开发新型涂料用基础树脂的目的。结果具体描述如下。1-苯基-1-（4-乙烯基苯基）乙烯（PVPE）与对甲基苯乙烯（PMS）在甲苯中，以三氟甲基磺酸为引发剂，在-78 ℃，高真空下进行聚合，得到转化率为100%的共聚物（聚合物主链）。2.用正丁基锂对PVPE主链上的乙烯基进行金属化，得到转化率为80%的多功能大分子引发剂。高分子引发剂与甲基丙烯酸甲酯在甲苯中在高真空下反应得到接枝共聚物，接枝物的末端带有醇和/或酸等官能团.以1，1-二苯基乙烯为原料，在甲苯中阴离子催化合成了聚（氨基苯乙烯-b-MMA）嵌段共聚物。这一结果对于制备接枝物中含有氨基的接枝共聚物是有用的。我们使用大型玻璃器皿（用于聚合的50升烧瓶）进行了接枝共聚物的大规模制备（5 kg）.用异氰酸酯化合物对接枝共聚物进行交联，得到光泽度好的涂膜。从该主题的结果来看，具有聚（丙烯酸正丁酯）的接枝共聚物在抗冲击涂料中应显示出更好的质量。