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Miscibility and phase structure of binary blends of polylactide and poly(methyl methacrylate)

Zhang, Guobao, Zhang, Jianming, Wang, Shenguo, Shen, Deyan·2003·Journal of Polymer Science Part B: Polymer Physics

Abstract

Blends of amorphous poly(DL‐lactide) (DL‐PLA) and crystalline poly(L‐lactide) (PLLA) with poly(methyl methacrylate) (PMMA) were prepared by both solution/precipitation and solution‐casting film methods. The miscibility, crystallization behavior, and component interaction of these blends were examined by differential scanning calorimetry. Only one glass‐transition temperature (Tg) was found in the DL‐PLA/PMMA solution/precipitation blends, indicating miscibility in this system. Two isolated Tg's appeared in the DL‐PLA/PMMA solution‐casting film blends, suggesting two segregated phases in the blend system, but evidence showed that two components were partially miscible. In the PLLA/PMMA blend, the crystallization of PLLA was greatly restricted by amorphous PMMA. Once the thermal history of the blend was destroyed, PLLA and PMMA were miscible. The Tg composition relationship for both DL‐PLA/PMMA and PLLA/PMMA miscible systems obeyed the Gordon–Taylor equation. Experiment results indicated that there is no more favorable trend of DL‐PLA to form miscible blends with PMMA than PLLA when PLLA is in the amorphous state. © 2002 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 41: 23–30, 2003

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Metadata

Authors
Zhang, G., Zhang, J., Wang, S., & Shen, D.
Venue
Journal of Polymer Science Part B: Polymer Physics
Publisher
Wiley
Published
2002-11-21
Volume
41
Issue
1
Pages
23-30
ISSN
  • 0887-6266 (ISSN-L)
  • 1099-0488
OpenAlex
W2054494993
Cited by
205
References
4
FWCI
1.49
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Miscibility and phase structure of binary blends of polylactide and poly(methyl methacrylate). https://app.cochat.ai/papers/10.1002/polb.10353
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Zhang, G., Zhang, J., Wang, S., & Shen, D. (2003). Miscibility and phase structure of binary blends of polylactide and poly(methyl methacrylate). Journal of Polymer Science Part B: Polymer Physics. https://doi.org/10.1002/polb.10353

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