Preparation and characterization of pure polyacrylate polymer colloid through emulsion polymerization using a novel initiator |
| |
Authors: | Lijun Chen Fengqin Wu |
| |
Affiliation: | a School of Chemical Engineering and Materials Science, Zhejiang University of Technology, No. 18 Chaowang Road, Hangzhou, Zhejiang Province 310032, China b Intertek Testing Services, Hangzhou 310052, China |
| |
Abstract: | A series of acrylic polymer colloids were prepared via semi-continuous seeded emulsion polymerization of BA and MMA in water phase when OP-10 and AIBI is used to be emulsifier and initiator, respectively. FTIR spectrum identifies the formation of copolymers of P (MMA-co-BA). DSC confirms that the colloid is a kind of random copolymer and the consistency among the chain segment is fairly good. The emulsion polymerization conditions of preparing acrylic polymer colloid are optimized. Results show that the conversion rate is high and the coagulum is low and the particle size of the acrylic polymer colloids is small when the amount of AIBI is 0.75 g. The polymerization temperature is 70 °C, which is lower than the one that the emulsion polymerization is initiated with the persulfate. |
| |
Keywords: | Semi-continuous seeded emulsion polymerization Acrylic polymer colloids Water-soluble azo initiator |
本文献已被 ScienceDirect 等数据库收录! |
|