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Block copolymerization of formaldehyde
Author(s) -
Smith W. E.,
Galiano F. R.,
Rankin D.,
Mantell G. J.
Publication year - 1966
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.1966.070101106
Subject(s) - copolymer , acrylonitrile , monomer , formaldehyde , polymer chemistry , styrene , polymerization , methyl methacrylate , isocyanate , materials science , chemistry , polymer , organic chemistry , polyurethane
Solubility and spectroscopic evidence are presented to support the formation of A‐B block copolymers between monomers undergoing anionic polymerization (A units) and monomeric formaldehyde (B units). Comonomers included in the study were styrene, methyl and n ‐butyl methacrylate, acrylonitrile, isoprene, and N , N ‐di‐ n ‐butylacrylamide. Similar evidence is presented on the formation of B‐A‐B copolymers between styrene and α‐methylstyrene and formaldehyde; an A‐(B‐C) random copolymer of styrene, formaldehyde, and phenyl isocyanate (C) was also prepared. Experimental details for the preparation of high‐purity, monomeric formaldehyde suitable for such work is described in some detail. It should be emphasized that this study was directed primarily toward showing the feasibility of preparing formaldehyde block copolymers; therefore, further work is needed to establish the quantitative nature of these reactions.