Synthesis of core-shell emulsion copolymer of poly(butyl acrylate)/α-methyl styrene-co-methyl acrylate, with application as processing aid of poly(vinyl chloride)

✍ Scribed by Zhiting Li; Jungang Gao; Kuilin Deng; Hong Guo Zhu

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 624 KB
• Volume: 54
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1994.070541002

✦ Synopsis

The core-shell grafting copolymer of a-methyl styrene-methyl acrylate on poly(buty1 acrylate) was synthesized. The particle morphology of latex and core-shell grafting polymerization was investigated as a function of: ( a ) reaction temperature; (b) initiator concentration used in the secondary polymerization; ( c ) monomer to polymer ratio; (d) emulsifier concentration. The compatibility of this copolymer with poly(viny1 chloride) (PVC ) was determined by the method of solubility parameter and scanning electron microscopy. The rheological behavior of the blend of this copolymer with PVC was investigated. The mechanical properties of the blend were determined. The results show that this copolymer can be used as processing aid for PVC.