Miscibility and co-crystallization in blends of poly(butylene terephthalate) and poly(ester-ether) segmented block copolymers

K. P. Gallagher, X. Zhang, J. P. Runt, G. Huynh-Ba

Research output: Contribution to conferencePaper

Abstract

Both the amorphous and crystalline phases of blends of PBT with poly(ester-ethers) were investigated. As hard segment concentration in the PEE copolymers increased, the blends changed from completely immiscible to miscible. The amorphous portion of blends containing copolymers with intermediate hard segment concentrations were found to be multiphase but some limited mixing in at least one of the phases is suspected. Blends with PEE containing less than 80 wt% hard segment were found to contain two crystal populations. Finally, in blends of PBT with PEE-80 through PEE-90, cocrystallization was concluded for quenched samples since only one crystal population was observed with DSC and optical microscopy. However, isothermal crystallization gave rise to two crystal populations indicating that the cocrystallization process could be kinetically controlled.

Original languageEnglish (US)
Pages1041-1043
Number of pages3
StatePublished - Jan 1 1991
Event49th Annual Technical Conference -ANTEC '91 - Montreal, Que, Can
Duration: May 5 1991May 9 1991

Other

Other49th Annual Technical Conference -ANTEC '91
CityMontreal, Que, Can
Period5/5/915/9/91

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Polymers and Plastics

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    Gallagher, K. P., Zhang, X., Runt, J. P., & Huynh-Ba, G. (1991). Miscibility and co-crystallization in blends of poly(butylene terephthalate) and poly(ester-ether) segmented block copolymers. 1041-1043. Paper presented at 49th Annual Technical Conference -ANTEC '91, Montreal, Que, Can, .