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Photo‐crosslinkable polymers with benzylideneacetophenone (chalkone) structure in the side chains
Author(s) -
Panda S. P.
Publication year - 1974
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.1974.070180811
Subject(s) - polymer chemistry , polymer , side chain , materials science , solubility , ether , grafting , epoxide , condensation polymer , polyamide , glycidyl methacrylate , chemistry , polymerization , organic chemistry , catalysis
Four soluble types of polymers have been synthesized by grafting 4‐ and 4′‐chalkonyl glycidyl ethers onto an aromatic polyamine (aniline–formaldehyde linear resin) and a polyamide (condensation product of dimerized linseed oil and an aliphatic polyamine) to obtain photo‐crosslinkable chalkone structure in the side chains which are also expected to contain one OH group each. The completion of grafting reactions has been followed by the disappearance of the epoxide absorption around 918 cm −1 . The characterization of the resins was done by melting point, solubility, and IR measurements. Irradiation was carried out with a 100‐watt Hanovia high‐pressure mercury are lamp. Irradiated samples were studied by UV spectral measurements and their insolubility in CHCl 3 . It was observed that polymers grafted with 4′‐chalkonyl glycidyl ether possibly undergo both isomerization and crosslinking reactions under UV irradiation while those grafted with 4‐chalkonyl glycidyl ether undergo crosslinking reaction predominantly.