期刊
POLYMER ENGINEERING AND SCIENCE
卷 60, 期 6, 页码 1138-1145出版社
WILEY
DOI: 10.1002/pen.25367
关键词
hyperbranched polymer; kinetic model; polyurethane acrylate; semibatch system
A kinetic model was proposed to describe hyperbranched polymers (HBPs) formed by the polymerization of monomers A(2)and B(3)with monofunctional compound (BR) added gradually in a semibatch reactor. The dependences of the degree of polymerization (DP) and the degree of branching on the reaction time and the monomer compositions were calculated. The DP of the HBPs could be increased by the slow addition of BR in the reactor. If the monomers B(3)and A(2)were mixed at a molar ratio of B-3:A(2)= 1:3, and the BR was fed slowly into the reactor, the HBPs with weight average DP were approximately 3200 and 16 700 at conversion of 0.95 and 0.99, respectively, which were higher than those prepared by the batch system. This theory was further verified by an experimental demonstration. Hyperbranched polyurethane acrylate can be synthesized with a higher DP in a semibatch system than in a batch reactor.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据