THERMAL GELATION OF POLY(VINYL CHLORIDE)


BASAN S., KARADAG E.

POLYMER INTERNATIONAL, vol.38, no.1, pp.83-87, 1995 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 1
  • Publication Date: 1995
  • Doi Number: 10.1002/pi.1995.210380111
  • Title of Journal : POLYMER INTERNATIONAL
  • Page Numbers: pp.83-87

Abstract

The dynamic and isothermal gelation points of poly(vinyl chloride) (PVC) were determined using spectrophotometric and viscometric techniques. Four different PVC samples, with viscosity-average molar masses of 70000, 90000, 106000 and 141000, were used. The dynamic thermal gelation points of PVC samples heated to temperatures between 120 and 280 degrees C were found to be between 232 and 236 degrees C. Isothermal gelation times of PVC ((M) over bar(v) = 106000) heated at 170, 180, 190 and 200 degrees C were determined as 345, 177, 78 and 37 min., respectively.