The phase behavior of tetramethyl bisphenol-A polyarylate/aliphatic polyester blends
SCIE
SCOPUS
- Title
- The phase behavior of tetramethyl bisphenol-A polyarylate/aliphatic polyester blends
- Authors
- Ahn, TO; Lee, MY; Jeong, HM; Cho, KW
- Date Issued
- 1998-01-30
- Publisher
- JOHN WILEY & SONS INC
- Abstract
- The phase behavior of blends of tetramethyl bisphenol-A polyarylate (TMPAr) with various linear aliphatic polyesters characterized by the ratio of aliphatic carbons to ester groups in the repeating unit, CH2/COO = 3 similar to 9, was examined by differential scanning calorimetry and dynamic mechanical analysis. TMPAr/aliphatic polyester blends prepared by solvent casting were found to be miscible when the CH2/COO ratio of aliphatic polyesters was larger than 4 and up to 9. The thermodynamic interaction parameter, B for the miscible blends was determined by the analysis of the depression of the melting point of polyester using the Hoffman-Weeks method. From the analysis of the heat of mixing data using a binary interaction model, it was concluded that strong unfavorable intramolecular interaction exists between the -CH2- and -COO- units in aliphatic polyesters and that four substituted methyl groups produces more favorable effects on the miscibility TMPAr with aliphatic polyesters. (C) 1998 John Wiley & Sons, Inc.
- Keywords
- tetramethyl bisphenol-A polyarylate; aliphatic polyester; blend; miscibility; MELTING-POINT DEPRESSION; POLYMER BLENDS; POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE); POLYCARBONATE BLENDS; ALIPHATIC POLYESTERS; STYRENIC POLYMERS; CO-POLYMER; MISCIBILITY; THERMODYNAMICS; POLY(STYRENE-CO-ACRYLONITRILE)
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20880
- DOI
- 10.1002/(SICI)1099-0488(19980130)36:2<201::AID-POLB1>3.3.CO;2-3
- ISSN
- 0887-6266
- Article Type
- Article
- Citation
- JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, vol. 36, no. 2, page. 201 - 212, 1998-01-30
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