聚氧乙烯大分子单体合成和应用(Ⅰ)--烯丙基端基聚氧乙烯大分子单体的合成和表征

Synthesis and Application of Poly(Ethylene Oxide)Macromers(Ⅰ)--Synthesis and Characterization of Poly(Ethyleneoxide)Macromers with Allyl-end Group

本文报道了合成烯丙基端基采氧乙烯大分子单体的两种方法(引发法和封端法)。合成产物具有预期的结构。获得的大分子单体与小分子丙烯酰胺共聚,可得到不同组成的共聚物。考察了大分子单体合成条件和端基重排因素,获得了这种大分子单体制备的适宜条件。

Polyethylene oxide(PEO)macromers with allyl-cnd group were synthesized by two different methods(initiating and deactivating).The products obtained were,by means of several techniques,including 1H-NMR,IR,VPO,GPC and the double-bond titration,characterized accurately,and the results show that such kinds of product possess expected structure.The macromers were copolymerized with smalt molacular acrylamide,and a series of copolymers with different composition can be obtained by adjusting copolymerization condition.Moreover,some evidence concerning allyl-groups rearrangement in synthesis of the macromers has been observed and suitable condition for laboratorial preperation of macromers has been proposed.