Miscibility of blends of bisphenol-a-polycarbonate and poly(styrene-co-acrylonitrile-co-hydroxystyrene) terpolymer

作者：Li Guangxian; Mong Shiyun; Jiang Sujun; Ragupathy L; Cowie J M G; Ferguson R; Arrighi V^*

来源：Journal of Applied Polymer Science, 2007, 106(2): 944-949.

DOI：10.1002/app.26767

• miscibility
• polymer blends
• terpolymer
• bisphenol-A-polycarbonate
• poly(hydroxystyrene-co-acrylonitrile-co-styrene)

The miscibility of blends of bisphenol-A-polycarbonate (BAPC) with the terpolymer poly(hydroxystyrene-co-acrylonitrile-co-styrene) (OHS-AN-S) and the copolymer poly(hydroxystyrene-co-acrylonitrile) (OHS-AN) was investigated. BAPC was found to be miscible with terpolymers incorporating 25-80 mol % hydroxystyrene. The introduction of the acrylonitrile monomer (AN) into poly (styrene-co-hydroxystyrene) (PSHS) produces a wider "miscibility window" with BAPC compared with that of blends of BAPC with PSHS i.e. a miscible blend is obtained at relatively lower levels of hydroxyl groups in the terpolymer. However, the miscibility range in terpolymer/BAPC blends is affected by the amount of AN monomer incorporated into the terpolymer. This is probably a consequence of the influence of the AN monomer on the closer spatial correlation between the terpolymer and BAPC chains. BAPC is also found to be miscible with the OHS-AN copolymer within the composition range 12-50 AN mol % in the copolymer. A triangular phase diagram for binary blends of terpolymer/ homopolymer (A(x),ByCz,/D) is suggested, to determine the miscible region of the terpolymer compositions in the blends. A model used for predicting the miscibility of binary blends consisting of a homopolymer and a terpolyrner was also proposed on the basis of the mean-field theory, and tested with the experimental results obtained in this work.

• 出版日期2007-10-15
• 单位四川大学