高等学校化学学报2011，Vol.32Issue(11)：2685-2690,6.
3,3'-双叠氮甲基环氧丁烷-3-叠氮甲基-3'-甲基环氧丁烷无规共聚物的合成与结构表征
Synthesis and Structure Characterization of 3,3'-Bisazidomethyloxetane-3-azidomethyl-3'-methyloxetane Random Copolymer
摘要
Abstract
3, 3'-Bisazidomethyloxetane-r-3-azidomethyl-3'-methyloxetane random copolymer [ p ( BAMO-rAMMO) ] was synthesized by cationic ring opening polymerization using 1,4-butanediol/BF3/Et20 initiator system. Polymerization mechanism of active chain end and activated monomer was discussed in the presence of Lewis acid. The effect of polymerization temperature on molecular weight and molecular weight distribution of product was analysed by GPC. The results indicate that molecular weight is controllable and molecular weight distribution is relatively narrow under 15 ℃. 1H NMR and 13C NMR were also used to character composition and micro-sequential structure of random copolymer. The results show that the composition of copolymer is 1∶1, which is accordance with molar feed ratio of monomers; alternating degree is nearly 50% ; average sequence length of chain segment is 2 for both BAMO and AMMO, so the two structural units are in random distribution.关键词
叠氮类聚合物/阳离子开环聚合/共聚组成/序列结构Key words
Azido polymer/ Cationic ring opening polymerization/ Copolymer composition/ Sequential structure分类
化学化工引用本文复制引用
张弛,李杰,罗运军,李晓萌,葛震..3,3'-双叠氮甲基环氧丁烷-3-叠氮甲基-3'-甲基环氧丁烷无规共聚物的合成与结构表征[J].高等学校化学学报,2011,32(11):2685-2690,6.基金项目
总装备部预研项目(批准号:40406030101-5)资助. （批准号:40406030101-5）
