✦ LIBER ✦

Synthesis and characterization of novel water-soluble polyesters for electrical insulation

✍ Scribed by U. Jejurkar; V. Shrinet; C. N. Murthy; R. C. Jain; A. K. Singh; M. Ramamoorty

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 367 KB
Volume: 104
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.25985

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✦ Synopsis

Abstract

Polyesters based on poly(alkyl anhydride), aromatic anhydrides, and polyglycols were synthesized by thermal and catalytic condensation polymerization techniques. The polymerization conditions were optimized by the variation of the monomer concentration, reaction temperature, and so on to achieve the desired properties. The reaction was monitored by the measurement of the acid values at different stages of the polymerization reaction. The water solubility of these polyesters was achieved by the termination of the reaction with the addition of ammonia. These polyester resins were characterized with IR and viscosity measurements. The electrical properties of polyester resins coated and cured on glass cloth were measured with the idea of using them as impregnating varnishes. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007

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