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Synthesis and characterization of aniline‐doped mixed copolymer resins. II
Author(s) -
Samal Rajani K.,
Senapati Binod K.,
Behuray Trupti B.
Publication year - 1996
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/(sici)1097-4628(19961024)62:4<655::aid-app9>3.0.co;2-s
Subject(s) - aniline , resorcinol , thiourea , copolymer , thermal stability , polymer chemistry , condensation polymer , materials science , chemistry , phenol , organic chemistry , polymer
Copolymer resins were synthesized by the mixed condensation of resorcinol–CH 2 O, resorcinol–aniline–CH 2 O, resorcinol–aniline–thiourea–CH 2 O, and resorcinol–aniline–urea–thiourea–CH 2 O with a view to develop synthetic resins having improved properties and performance like toughness, mechanical properties, thermal resistance, chemical inertness, and adhesion. The resins were characterized by IR and TG analyses. The thermal analysis showed that the mixed copolymer resins have significantly better thermal stability than that of the simple phenol–CH 2 O, aniline–CH 2 O, urea–CH 2 O, and thiourea–CH 2 O resins. At 600°C, only a 50% weight loss is observed, and even at 800°C, the weight loss is about 70%. The resins are insoluble in most of the organic solvents including DMSO‐ d 6 . They too are unaffected by diluted HNO 3 , but dissolve in concentrated HNO 3 . © 1996 John Wiley & Sons, Inc.