一种可光聚合的氧杂环丁烷基硅烷偶联剂的合成与性能研究  

Synthesis and properties of an oxetane silane coupling agent

作　　者：杨宗鑫 马浩钦 孙芳 YANG ZongXin;MA HaoQin;SUN Fang(College of Chemistry,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学化学学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2020年第2期17-23,共7页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家重点研发计划(2017YFB0307800);国家自然科学基金(51273014);中央高校基本科研业务费(XK1802-6)。

摘　　要：以3-羟甲基-3-乙基-氧杂环丁烷、烯丙基溴和三乙氧基硅烷为主要原料合成了一种氧杂环丁烷基硅烷偶联剂,即三乙氧基-(3-乙基-3-丙基甲氧基氧杂环丁烷)硅烷(ETPO),研究了ETPO的光聚合活性及其对3,4-环氧环己基甲基3,4-环氧环己基甲酸酯(E4221)环氧阳离子光聚合体系的光聚合动力学,光固化膜的拉伸性能、表面性能及附着力的影响。结果表明,ETPO可以促进E4221体系光聚合转化率的提高,改善固化膜的拉伸性能、附着力和表面拒水性;含有ETPO的E4221固化膜的拉伸强度可达到15.9 MPa,断裂伸长率达到21.4%,在PVC上的附着力最高可为5B,最大表面水接触角为85.3°。A new oxetane silane coupling agent,triethoxy-(3-ethyl-3-propyl methoxybutane)silane(ETPO),has been synthesized using 3-hydroxymethy l-3-ethyl-oxetane,allyl bromide and triethoxysilane as the main precursors.The photopolymerization kinetics of ETPO and its influence on the photopolymerization behavior,physical and mechanical properties,surface properties and adhesion of the 3,4-epoxycyclohexylmethy l-3,4-epoxycyclohexanecarboxylate(E4221)cationic system were investigated.Addition of ETPO enhanced the conversion of E4221 and improved the tensile properties,adhesion and surface hydrophobicity of the cured film of E4221.The tensile strength,elongation at break,adhesion for PVC and water contact angle of the cured film of E4221 with ETPO were 15.9 MPa,21.4%,5B and 85.3°,respectively.

关 键 词：光聚合 硅烷偶联剂 氧杂环丁烷 

分 类 号：TQ314.24[化学工程—高聚物工业]