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Use of N ‐( N ′‐arylamino)maleimides to improve the thermal properties of poly(vinyl chloride) through chemical modification and graft copolymerization
Author(s) -
AbdelNaby Abir S.,
AlDossary Abeer O.
Publication year - 2008
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.20159
Subject(s) - copolymer , maleimide , vinyl chloride , monomer , polymer , thermal stability , polymer chemistry , stabilizer (aeronautics) , chlorine , materials science , chemical modification , vinyl polymer , chlorine atom , polyvinyl chloride , chemical engineering , chemistry , organic chemistry , composite material , engineering , mechanical engineering , medicinal chemistry , metallurgy
The reaction of poly(vinyl chloride) (PVC) with N ‐( N ′‐arylamino)maleimide derivatives was studied. The thermal stability of the modified polymer was improved markedly when compared with that of the unmodified polymer. The stability improvement was attributed to the replacement of the labile chlorine atoms by more stable organic groups. The modified polymer also showed a lower extent of discoloration when compared with that of unmodified PVC. In order to introduce a polymeric stabilizer into PVC, the dienophilic monomer was chemically grafted onto the polymeric chains. The mechanism of the chemical modification as well as that of the graft copolymerization are discussed. J. VINYL ADDIT. TECHNOL., 2008. © 2008 Society of Plastics Engineers.