Crystallization of Poly(p-oxycinnamyl) during Solution Polymerization. Article Swipe
Hiroshi Tsugita
,
Fumiyoshi Yokoyama
,
Yuhiko Yamashita
·
YOU?
·
· 1994
· Open Access
·
· DOI: https://doi.org/10.2115/fiber.50.7_256
YOU?
·
· 1994
· Open Access
·
· DOI: https://doi.org/10.2115/fiber.50.7_256
Poly(p-oxycinnamyl) (POC) crystals were obtained by polyesterification of 4-acetoxy cinnamic acid under elimination of acetic acid in aromatic solvent, Therm-S900. Morphology and structure of the crystals were studied by scanning electron microscopy, transmission electron microscopy and wide-angle X-ray powder diffractometry. Conformational simulation of POC was also made. The crystals were obtained as mixture of spherical, rod-like, and lamellar morphologies. The existing ratio of the morphologies depended on the preparation conditions, temperature, concentration, and time. The rod-like crystals were only observed in the limited preparation conditions, 280-290°C and 1.0-2.0 wt%. With increasing temperature and concentration, the spherical crystals became predominant. Based on the results, it was assumed that this polymerization system was characterized by two mechanisms: one is related to the formation of spherical crystals which were obtained from molten oligomer droplets formed by the phase separation, and the other is related to the formation of crystals with the other shapes as rods and lamellae from solution. It was revealed that the crystal system of POC prepared at 1.5 wt% of monomer and 280°C was orthorhombic with a=0.82nm and b=0.48nm.
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- Type
- article
- Language
- en
- Landing Page
- http://doi.org/10.2115/fiber.50.7_256
- https://www.jstage.jst.go.jp/article/fiber1944/50/7/50_7_256/_pdf
- OA Status
- diamond
- Cited By
- 1
- References
- 2
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- 10
- OpenAlex ID
- https://openalex.org/W2324649561
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- OpenAlex ID
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https://openalex.org/W2324649561Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.2115/fiber.50.7_256Digital Object Identifier
- Title
-
Crystallization of Poly(p-oxycinnamyl) during Solution Polymerization.Work title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
1994Year of publication
- Publication date
-
1994-01-01Full publication date if available
- Authors
-
Hiroshi Tsugita, Fumiyoshi Yokoyama, Yuhiko YamashitaList of authors in order
- Landing page
-
https://doi.org/10.2115/fiber.50.7_256Publisher landing page
- PDF URL
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https://www.jstage.jst.go.jp/article/fiber1944/50/7/50_7_256/_pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
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diamondOpen access status per OpenAlex
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https://www.jstage.jst.go.jp/article/fiber1944/50/7/50_7_256/_pdfDirect OA link when available
- Concepts
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Crystallization, Polymerization, Materials science, Chemical engineering, Polymer chemistry, Polymer science, Chemistry, Polymer, Composite material, EngineeringTop concepts (fields/topics) attached by OpenAlex
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1Total citation count in OpenAlex
- References (count)
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2Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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