Miscibility and crystallization of poly(ethylene succinate)/poly(vinyl phenol) blends

Zhaobin Qiu, So Fujinami, Motonori Komura, Ken Nakajima, Takayuki Ikehara, Toshio Nishi

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

Miscibility of biodegradable poly(ethylene succinate) (PES)/poly(vinyl phenol) (PVPh) blends has been studied by differential scanning calorimetry (DSC) in this work. PES is found to be miscible with PVPh as shown by the existence of single composition dependent glass transition temperature over the entire composition range. Spherulitic morphology and the growth rates of neat and blended PES were investigated by optical microscopy (OM). Both neat and blended PES show a maximum growth rate value in the crystallization temperature range of 45-65°C, with the growth rate of neat PES being higher than that of blended PES at the same crystallization temperature. The overall crystallization kinetics of neat and blended PES was also studied by DSC and analyzed by the Avrami equation at 60 and 65°C. The crystallization rate decreases with increasing the temperature for both neat and blended PES. The crystallization rate of blended PES is lower than that of neat PES at the same crystallization temperature. However, the Avrami exponent n is almost the same despite the blend composition and crystallization temperature, indicating that the addition of PVPh does not change the crystallization mechanism of PES but only lowers the crystallization rate.

Original languageEnglish
Pages (from-to)4515-4521
Number of pages7
JournalPolymer
Volume45
Issue number13
DOIs
Publication statusPublished - 2004 Jun
Externally publishedYes

Keywords

  • Crystallization
  • Miscibility
  • Poly(ethylene succinate)/poly(vinyl phenol) blends

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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