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RAFT polymerization of acrylamide manipulated with trithiocarbonates in poly(ethylene glycol) solution
Author(s) -
Zhang Yulin,
Ye Lei,
Diao Yongfu,
Lei Weiwei,
Shi LinYing,
Ran Rong
Publication year - 2016
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.43000
Subject(s) - polymerization , chain transfer , polymer chemistry , precipitation polymerization , reversible addition−fragmentation chain transfer polymerization , polyethylene glycol , dispersion polymerization , raft , materials science , solution polymerization , chemical engineering , polymer , aqueous solution , ethylene glycol , bulk polymerization , chain growth polymerization , radical polymerization , living polymerization , chemistry , organic chemistry , composite material , engineering
The reversible addition fragmentation chain transfer (RAFT) polymerization of acrylamide (AM) in aqueous two‐phase system was successfully carried out in polyethylene glycol (PEG) aqueous solution. Because of phase transition involved in the polymerization process, the ln([ M ] 0 /[ M ])‐time plots were indicated in two‐stages significantly. Both the initial homogeneous polymerization and the subsequent heterogeneous polymerization were under good control. The effects of various synthesis parameters such as polymerization temperature, concentration of CTA, and initiator on RAFT polymerization behaviors have been investigated. Furthermore, the evolution process of the droplet morphologies after separation was examined by transmission electron microscope. The results showed that the nuclei were formed throughout the whole heterogeneous polymerization and stable sphere particles with an average size of about 1 μm were produced finally. More importantly, it was also found that the viscosity played a significant role in the stabilization of the dispersion of polymer particles. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43000.