Crystallization and morphological features of syndiotactic/atactic polystyrene blends at high temperatures

Chi Wang; Young Da Fan; Chung Chiu Chen; Chung Hau Hung

doi:10.1002/macp.200700073

Crystallization and morphological features of syndiotactic/atactic polystyrene blends at high temperatures

Chi Wang, Young Da Fan, Chung Chiu Chen, Chung Hau Hung

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Crystalline/amorphous binary mixtures of polystyrene with different tacticities, syndiotactic/atactic isomers (sPS/aPS), have been systematically studied to reveal the composition dependence of the blend morphologies, i.e., sPS lamellar structure and aPS diluent segregation, developed after isothermal crystallization. To reveal the molecular weight effect of the aPS diluents, four different Mmacor;_w of aPS were used to prepare blends with various compositions. After being melt crystallized isothermally at 250°C, all blends were investigated by means of POM, WAXS, and SAXS as well as SEM and TEM to reveal the spherulitic and lamellar morphologies developed.

Original language	English
Pages (from-to)	2428-2438
Number of pages	11
Journal	Macromolecular Chemistry and Physics
Volume	208
Issue number	22
DOIs	https://doi.org/10.1002/macp.200700073
Publication status	Published - 2007 Nov 20

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Physical and Theoretical Chemistry
Polymers and Plastics
Organic Chemistry
Materials Chemistry

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10.1002/macp.200700073

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abstract = "Crystalline/amorphous binary mixtures of polystyrene with different tacticities, syndiotactic/atactic isomers (sPS/aPS), have been systematically studied to reveal the composition dependence of the blend morphologies, i.e., sPS lamellar structure and aPS diluent segregation, developed after isothermal crystallization. To reveal the molecular weight effect of the aPS diluents, four different Mmacor;w of aPS were used to prepare blends with various compositions. After being melt crystallized isothermally at 250°C, all blends were investigated by means of POM, WAXS, and SAXS as well as SEM and TEM to reveal the spherulitic and lamellar morphologies developed.",

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AU - Wang, Chi

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AU - Hung, Chung Hau

PY - 2007/11/20

Y1 - 2007/11/20

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AB - Crystalline/amorphous binary mixtures of polystyrene with different tacticities, syndiotactic/atactic isomers (sPS/aPS), have been systematically studied to reveal the composition dependence of the blend morphologies, i.e., sPS lamellar structure and aPS diluent segregation, developed after isothermal crystallization. To reveal the molecular weight effect of the aPS diluents, four different Mmacor;w of aPS were used to prepare blends with various compositions. After being melt crystallized isothermally at 250°C, all blends were investigated by means of POM, WAXS, and SAXS as well as SEM and TEM to reveal the spherulitic and lamellar morphologies developed.

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Crystallization and morphological features of syndiotactic/atactic polystyrene blends at high temperatures

Abstract

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