Synthesis and chemical modification of new epoxy resins containing alkylaminopyridines

✍ Scribed by Jitao Huang; Qiang Wang; Jinkun Yao; Liming Zhang; Jingwu Sun

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 142 KB
• Volume: 71
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19990214)71:7<1101::aid-app8>3.0.co;2-7

✦ Synopsis

A new series of epoxy resins containing 4-(N,N-dialkylamine)pyridines (DAAP) functionality was prepared by reaction of 4-aminopyridine or/and aniline with epichlorohydrin. Then, hydroxyl groups in the polymeric chain underwent a chemical modification with acyl chloride. Modification of the side group and backbone of the chain resulted in an enhancement of solubility of the linear catalyst with catalyzed system and also led to an accelerated acylation. Here, acetylation of tert-butyl alcohol was monitored by means of chromatographic analyses for determining the catalytic power of these polymeric catalysts. Catalytic activity of the modified linear poly(4aminopyridine-epichlorohydrin-aniline) was found to be more effective than that of DMAP, and catalytic activity of network polymers in a heterogeneous system was found to be somewhat lower than that of any of its linear analogs.