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Graft modification of highly chlorinated polyethylene (HCPE) with methyl methacrylate by the mechanochemistry reaction. I. Synthesis and characterization
Author(s) -
Zhao JiRuo,
Feng Ying,
Chen XinFeng
Publication year - 2003
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.11934
Subject(s) - mechanochemistry , polyethylene , chlorine , methyl methacrylate , copolymer , grafting , polymer chemistry , polymer , materials science , reaction mechanism , poly(methyl methacrylate) , chemical engineering , chemistry , organic chemistry , catalysis , nanotechnology , composite material , engineering , metallurgy
Highly chlorinated polyethylene‐graft‐methyl methacrylate (HCPE‐g‐MMA; HCPE with chlorine contents > 60%), obtained by a mechanochemistry reaction, is discussed in detail. A two‐roll mill was used in the process. The reaction conditions affecting the structure of HCPE‐g‐MMA copolymers were measured in terms of calculation of graft efficiency (GE), graft degree (GD), and copolymerization rate/homopolymerization rate ( R c / R h ) by 1 H‐NMR spectroscopy. Based on these results, it is concluded that the chlorine contents of HCPE, the additional amount of MMA, and the mechanochemistry reaction time all have impacts on the structure of the polymer. The results also confirm that grafting is very much favored by the mechanochemistry reaction. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 811–816, 2003