作　　者： ; ; ; ;

机构地区： 山东大学化学与化工学院

出　　处： 《材料工程》 2004年第7期14-17,共4页

摘　　要： 采用不同配比的反应型受阻胺 4 -丙烯酰氧基 - 2 ,2 ,6 ,6 -四甲基哌啶醇酯 (ATMP)与丙烯酸甲酯 (MA)进行溶液光引发共聚合。用核磁共振对共聚物的组成及其序列分布进行了表征。在此基础上 ,对不同微观结构的共聚物进行了热稳定性及玻璃化温度的测定 ,确定了共聚物中各基团的断裂分解温度、材料的玻璃化转变 。 MA/ATMP copolymers were prepared by the photo-induced solution copolymerization at various initial monomer ratios in toluene. The compositions and the sequence distributions of MA/ATMP copolymers were characterized with 1H-NMR. On this basis, the thermal stability of the copolymers with different microstructures and the glass transition temperature (Tg) were measured. Thus the splitting decomposition temperature of the groups in the copolymers and the glass state changes of the material as well as the relationship between these changes and the composition of the copolymer chains and the sequence distribution are confirmed.

关 键 词： 共聚物 共聚合 微观结构 热稳定性

领　　域： [理学] [理学] [化学工程]