Phase behavior and crystallization in blends of a low molecular weight polyethylene-block-poly(ethylene oxide) diblock copolymer and poly(hydroxyether of bisphenol A)

Guo, Qipeng 2006, Phase behavior and crystallization in blends of a low molecular weight polyethylene-block-poly(ethylene oxide) diblock copolymer and poly(hydroxyether of bisphenol A), Thermochimica acta, vol. 451, no. 1-2, pp. 168-173.

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Title Phase behavior and crystallization in blends of a low molecular weight polyethylene-block-poly(ethylene oxide) diblock copolymer and poly(hydroxyether of bisphenol A)
Author(s) Guo, Qipeng
Journal name Thermochimica acta
Volume number 451
Issue number 1-2
Start page 168
End page 173
Publisher Elsevier BV
Place of publication Amsterdam, Netherlands
Publication date 2006-12
ISSN 0040-6031
1872-762X
Keyword(s) poly(hydroxyether of bisphenol A)
crystallization
polymer blends
phase behavior
Summary The phase behavior, morphology and crystallization in blends of a low-molecular-weight (Mn = 1400) double-crystalline polyethylene-block-poly(ethylene oxide) (PE-PEO) diblock copolymer with poly(hydroxyether of bisphenol A) (PH) were investigated by differential scanning calorimetry, transmission electron microscopy and small-angle X-ray scattering. The symmetric PE-PEO diblock copolymer consists of a PH-miscible PEO block and a PH-immiscible PE block. However, PH only exhibits partial miscibility with the PEO block of the copolymer in the PH/PE-PEO blends; both macrophase and microphase separations took place. There existed two macrophases in the PH/PE-PEO blends, i.e., a PH-rich phase and a PE-PEO copolymer-rich phase. The PE block of the copolymer in the blends exhibited fractionated crystallization behavior by homogeneous nucleation. There appeared three crystallization exotherms related to the crystallization of the PE block within three different microenvironments in the PH/PE-PEO blends.
Notes Available online 14 September 2007.
Language eng
Field of Research 091209 Polymers and Plastics
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30003843

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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