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Morphological Study on Binary Blends of Poly(.EPSILON.-caprolactone)-block-Polybutadiene and Poly(.EPSILON.-caprolactone).
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- Nojima Shuichi
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST)
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- Sasaki Shintaro
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST)
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- Kuroda Masahiro
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST)
Bibliographic Information
- Other Title
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- Morphological Study on Binary Blends of Poly(ε-caprolactone)-block-Polybutadiene and Poly(ε-caprolactone)
- Morphological Study on Binary Blends of
- Published
- 1997
- DOI
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- 10.1295/polymj.29.642
- Publisher
- The Society of Polymer Science, Japan
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Description
The morphology and melting behavior of binary blends of poly(ε-caprolactone)-block-polybutadiene (PCL-b-PB) and poly(ε-caprolactone) homopolymer (PCL) were investigated by small-angle X-ray scattering (SAXS) and differential scanning calorimetry (DSC) as a function of the homopolymer fraction φhomo in the system. Three sets of the blends were prepared considering the degree of miscibility between PCL-b-PB and PCL in the melt. The morphology after crystallization of PCL and the PCL block in PCL-b-PB depended strongly on the miscibility in the melt; when PCL was uniformly dissolved with the PCL block in the microdomain structure of PCL-b-PB, an alternating structure of lamellae and amorphous layers (lamellar morphology) was formed in which the PCL block and PCL together made a lamellar crystal, suggesting the formation of a mixed crystal composed of the PCL block and PCL. When PCL was localized in the microdomain structure or macroscopically segregated in the melt, two separate crystalline regions were observed over a wide range of φhomo, each consisting of PCL and PCL+PCL-b-PB. The lamellar morphology is qualitatively discussed as a function of φhomo from the viewpoint of the chain conformation of the PB block.
Journal
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- Polymer Journal
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Polymer Journal 29 (8), 642-648, 1997
The Society of Polymer Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282681265310336
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- NII Article ID
- 10006272475
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- NII Book ID
- AA00777013
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- COI
- 1:CAS:528:DyaK2sXlsFClurg%3D
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- ISSN
- 13490540
- 00323896
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- NDL BIB ID
- 4277822
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed
