Preparation and Characterization of PMAA/SiO2 Composite Particle Via Emulsion Polymerization
Silica gel particle was chemically modified by using 3-methacryloxypropyl trimethoxysilane(KH-570) as coupling agent.Then poly methyl acrylic acid (PMAA) was grafted on the surface of particles MPS-SiO2 with the method of Emulsion Polymerization,and grafting particles PMMA/SiO2 were prepared.The grafting particle PMAA/SiO2 was characterized by using FT-IR,TG and SEM.The experimental results show that the graft polymerization of methyl acrylic acid (MAA)on onto the surface of silica gel particles can successfully realized using the method of graft from.During the graft polymerization,the grafted polymer layer is a hindrance to the subsequent graft polymerization.When the grafted polymer layer reach to a certain density via overlapping and entwisting,a kinetic barrier will be built up.Hence,the grafting degree of the polymer under a certain condition has a limiting value.
Emulsion polymerization Poly(methacrylic acid) Silica gel Graft polymerization Graft degree
Kehong Zhang Junjuan Du Hui Xiao Yan Yuan
College of Light-Textile Engineering and Art, Anhui Agricultural University, Hefei, Anhui 230036,Chi College of Business, Anhui Xinhua University, Hefei, Anhui 230088, China
国际会议
香港
英文
184-187
2012-07-26（万方平台首次上网日期，不代表论文的发表时间）