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New self‐crosslinkable copolymers based on N ‐methyl‐ N ‐vinylbenzylpyrrolidinium halide and methyl methacrylate
Author(s) -
Tong JiangDong,
Du Prez Filip E,
Goethals Eric J
Publication year - 2000
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(200003)49:3<288::aid-pi364>3.0.co;2-4
Subject(s) - methyl methacrylate , copolymer , halide , polymer chemistry , ammonium , chloride , ammonium chloride , materials science , chemistry , organic chemistry , polymer
Thermally‐induced self‐crosslinking behaviour has been found in copolymers containing N‐ methyl‐ N ‐vinylbenzylpyrrolidinium chloride (MVBPC) and methyl methacrylate (MMA). NMR, IR and low molecular weight model reactions demonstrate that this crosslinking reaction occurs between the methyl ester groups of the MMA units and the quaternary ammonium salts, with the resulting benzyl esters forming chemical links between the MVBPC and MMA units with the formation of N,N ‐dimethylpyrrolidinium chloride. Similar crosslinking behaviour has also been found when the Cl − anion is replaced by Br − and I − , but not in the case of BF − 4as counter anion. © 2000 Society of Chemical Industry