Graft Copolymerization of Styrene and Acrylonitrile in the Presence of Polypropylene Glycol: Particle Growth.
作者：Li Li, Linbo Wu,* Zhiyang Bu, Cheng Gong, Bo-Geng Li,* Klaus-Dieter Hungenberg.
關(guān)鍵字：接枝聚合，動力學(xué)，顆粒增長
論文來源：期刊
具體來源：Macromol Reaction Eng. 6(9-10): 395-405, 2012;
發(fā)表時間：2012年
The particle growth in the graft free-radical copolymerization of styrene (St) and acrylonitrile
(AN) in the presence of poly(propylene glycol) is investigated by experiments and modeling. The concentrations of chain transfer agent andmacromer, and the St/ANratio play important roles in particle size and its distribution. A particle size model is developed and an analytic expression for the particle size in terms of monomer mass concentration (Wmt0), initiator molar concentration ([I]0), and macromer mass concentration (WM0) is derived. The particle size is described experimentally as: W0:58 mt0 W0:65 M0 ?I0:06 0 . Particle growth processes under various experimental conditions are well described by the model.