Ring‐opening‐closing alternating copolymerization of 2‐methyl‐2‐oxazoline with  N ‐methyldiacrylamide | Zendy

Kadokawa Junichi | Zendy; Matsumura Yoshitaka | Zendy; Kobayashi Shiro | Zendy

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Ring‐opening‐closing alternating copolymerization of 2‐methyl‐2‐oxazoline with N ‐methyldiacrylamide

Author(s) -

Kadokawa Junichi,

Matsumura Yoshitaka,

Kobayashi Shiro

Publication year - 1994

Publication title -

macromolecular chemistry and physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.57

H-Index - 112

eISSN - 1521-3935

pISSN - 1022-1352

DOI - 10.1002/macp.1994.021951115

Subject(s) - copolymer , zwitterion , polymer chemistry , monomer , ring (chemistry) , oxazoline , chemistry , ether , closing (real estate) , ring opening polymerization , reaction mechanism , catalysis , polymer , organic chemistry , molecule , political science , law

This paper describes a new ring‐opening‐closing alternating copolymerization (ROCAC) of 2‐methyl‐2‐oxazoline (five‐membered cyclic imino ether, 1 ) with N ‐methyldiacrylamide ( 2 ). The reaction of a 1 : 1 monomer feed ratio proceeded without any added catalyst to give an alternating copolymer 3 having two structural units formed by ring‐opening and ring‐closing (cyclization). The structure of copolymer 3 was determined by 1 H, 13 C NMR, and IR spectroscopies. The extent of cyclization was at most 65%. The copolymerization was reasonably explained by a mechanism of propagation via zwitterion intermediates.

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