文献类型：期刊文献

中文题名：β-环糊精包合作用下甲基丙烯酸甲酯聚合物对天然胶乳的改性

英文题名：Inclusion polymerization of β-cyclodextrin with methyl methacrylate for modifying natural rubber latex

作者：邵红娟[1];田晓慧[1];孙金煜[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2016

卷号：39

期号：4

起止页码：289

中文期刊名：合成橡胶工业

外文期刊名：China Synthetic Rubber Industry

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

语种：中文

中文关键词：β-环糊精;甲基丙烯酸甲酯;包合物;天然胶乳;相容性;力学性能;耐热老化性能

外文关键词：β-cyclodextrin; methyl methacrylate; inclu-sion complex; natural rubber latex; compatibility; mechani-cal property; aging resistance

摘要：以甲基丙烯酸甲酯/β-环糊精包合物为反应单体、偶氮二异丁腈为引发剂,在80℃下乳液聚合8 h制备了亲水性聚合物聚(甲基丙烯酸甲酯-β-环糊精)。将制得的聚合乳液用于共混改性天然胶乳,分析了共混乳液的相容性并与聚甲基丙烯酸甲酯与天然胶乳的相容性进行了对比。结果表明,由于β-环糊精外腔的羟基与天然胶乳外层的亲水磷脂蛋白层的相互作用,从而有效改善了聚甲基丙烯酸甲酯与天然胶乳的相容性;通过力学性能、原子力显微镜以及耐热老化性能的分析测试发现,改性后共混乳胶膜的力学性能、表面形貌以及耐热老化性能均得到较大程度的改善。
Hydrophilic poly（methyl methacrylate-β-cyclo- dextrin） was synthesized with methyl methacrylate and B-cy- clodextrin as reaction monomers, and azodiisobutyronitrile as initiator by emulsion polymerization for 8 h at 80 ℃. The prepared polymer emulsion was used to blend with natural rubber latex by heterocoagulation, the compatibility of blend- ing emulsion was analyzed and then compared with the com- patibility of poly（ methyl methacrylate） and natural rubber latex. The results showed that β-cyclodextrin in synthesized co- polymer caused the poly（ methyl methacrylate-β-cyclodextrin） to exhibit better compatibility with natural rubber latex compared to poly（methyl methacrylate） because of the interactionof hydroxyl in outer cavity of β-cyclodextrin and hydrophilic phosphatide protein on outer layer of natural rubber latex. The investigation for effects of the additive copolymer through mechanical test, atomic force microscope and heat resistance test showed that natural rubber latex/poly （methyl methacry- late-β-cyclodextrin） blending films had better mechanical properties, morphology and aging resistance compared with natural rubber latex and even natural rubber latex/poly（ methyl methacrylate） blending films.