Phase behavior and interactions in blends of poly[(butylene adipate)-co-poly(butylene terephthalate)] copolyester with poly(4-vinyl phenol)

Li Ting Lee, Eamor M. Woo, Wei Ting Chen, Ling Chang, Kai Cheng Yen

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Miscibility with a linear Tg-composition relationship was proven for blend of poly(butylene adipate-co-butylene terephthalate) [P(BA-co-BT)] with poly(4-vinyl phenol) (PVPh). In comparison to the blends of PBA/PVPh and poly(butylene terephthalate) (PBT)/PVPh, the Kwei's Tg model fitting on data for the P(BA-co-BT)/PVPh blend yields a q value between those for the PBA/PVPh and PBT/PVPh blends. The q values suggest that the interaction strength in the P(BA-co-BT)/PVPh blend is not as strong as that in the PBT/PVPh blend. Upon mixing the PVPh into the immiscible blend of PBA and PBT, the ternary PBA/PBT/PVPh blends only exhibits partial miscibility. Fullscale ternary miscibility in whole compositions is not possible owing to the significant ΔΧ effect (Χij-Χik). The wavenumber shifts of the hydroxyl IR absorbance band indicates that the H-bonding strength is in decreasing order-PBT/PVPh > P(BA-co-BT)/PVPh > PBA/PVPh-and shows that the BA segment in the copolymer tends to defray interactions between P(BA-co-BT) and PVPh in blends.

Original languageEnglish
Pages (from-to)439-448
Number of pages10
JournalColloid and Polymer Science
Volume288
Issue number4
DOIs
Publication statusPublished - 2010 Feb

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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