Poly(AN-co-PMPA)的合成及其对POM耐光氧老化性能的影响  

Synthesis of Poly(AN-co-PMPA)and Its Effects on the Photo-oxidation of POM

作　　者：杨志骅 郑明嘉 

机构地区：[1]金发科技股份有限公司产品研发中心,塑料改性与加工国家工程实验室,广东广州510520

出　　处：《塑料工业》2012年第7期127-130,共4页China Plastics Industry

摘　　要：采用乳液聚合方式将一种聚合型的受阻胺光稳定剂4-丙烯酰氧基-1,2,2,6,6-五甲基哌啶(PMPA)与丙烯腈(AN)进行共聚,制备出一种含有受阻胺光稳定基团的聚丙烯腈共聚物——丙烯腈-4-丙烯酰氧基-1,2,2,6,6-五甲基哌啶醇共聚物[Poly(AN-co-PMPA)],并用该聚合物对聚甲醛(POM)进行共混改性。结果表明,Poly(AN-co-PMPA)可以改善POM的紫外光稳定性,而且其长期耐老化性能优于小分子光稳定剂对POM的改性。此外,Poly(AN-co-PMPA)在一定程度上可以提高聚POM的抗冲性能。A copolymer containing hindered amine light stabilizer,Poly（AN-co-PMPA）,was prepared from a polymerizable hindered amine light stabilizer and acrylonitrile monomer via emulsion polymerization.Furthermore,polyoxymethylene was modified by Poly（AN-co-PMPA）.The results showed that the UV-stability was improved.Its long-term aging resistance was better than that of small-molecule light stabilizers on the modification of POM.In addition,the Poly（AN-co-PMPA）,to some extent,can improve the impact resistance of POM.

关 键 词：聚甲醛 受阻胺光稳定剂 紫外光老化 

分 类 号：TQ326.51[化学工程—合成树脂塑料工业] TQ314.245