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Novel additives including charge‐transfer complexes in grafting of methyl methacrylate to polypropylene, cellulose and wool, initiated by ionizing radiation and UV: significance of these studies in analogous curing processes
Author(s) -
Garnett John L,
Ng LooTeck,
Viengkhou Visay,
Zilic Elvis
Publication year - 1999
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(199910)48:10<1016::aid-pi263>3.0.co;2-g
Subject(s) - monomer , polymer chemistry , materials science , methyl methacrylate , copolymer , curing (chemistry) , grafting , cellulose , methacrylate , polymer , uv curing , polypropylene , acrylate , chemical engineering , chemistry , organic chemistry , composite material , engineering
Photoinitiators recently developed for UV curing of pigmented finishes have been used to accelerate the grafting of a typical acrylate monomer, methyl methacrylate (MMA), to a variety of backbone polymers, cellulose, wool and polypropylene (PPE). Both UV and γ‐radiation sources have been used to initiate reaction. Novel charge‐transfer (CT) monomer complexes involving electron rich donors (D) and electron poor acceptors (A) have also been used as additives in these reactions. The DA complexes themselves have been directly grafted to cellulose to produce unique copolymers. Mechanisms for the above grafting processes are proposed. The significance of this grafting work in analogous radiation curing is discussed. © 1999 Society of Chemical Industry