Penetrating Spherulitic Growth in Poly(butylene adipate-c o-butylene succinate)/Poly(ethylene oxide) Blends

Penetrating Spherulitic Growth in Poly(butylene adipate-c o-butylene succinate)/Poly(ethylene oxide) Blends

The spherulitic growth of poly(ethylene oxide) (PEO) was found to continue in the spherulites of poly(butylene adipate-co-butylene succinate) (PBAS) in the simultaneous spherulitic growth process of the two components in PBAS/PEO blends. This phenomenon, namely the formation of interpenetrating sphe...

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Veröffentlicht in:Macromolecules 2005-06, Vol.38 (12), p.5104-5108
Hauptverfasser: Ikehara, Takayuki, Kimura, Hironori, Qiu, Zhaobin
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Sprache:eng
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Applied sciences
Crystallization
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
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container_end_page 5108
container_issue 12
container_start_page 5104
container_title Macromolecules
container_volume 38
creator Ikehara, Takayuki
Kimura, Hironori
Qiu, Zhaobin
description The spherulitic growth of poly(ethylene oxide) (PEO) was found to continue in the spherulites of poly(butylene adipate-co-butylene succinate) (PBAS) in the simultaneous spherulitic growth process of the two components in PBAS/PEO blends. This phenomenon, namely the formation of interpenetrating spherulites (IPS), was analyzed on the basis of birefringence observed by polarizing optical microscopy. The growth direction of PEO lamellae in the PBAS spherulites was found to be along the preexisting PBAS lamellae. PEO crystals also nucleated inside PBAS spherulites and showed spherulitic growth in them at relatively high crystallization temperatures. The conditions for realizing IPS were also discussed. Miscibility in these novel crystalline/crystalline polymer blends in the molten state was confirmed by differential scanning calorimetry and optical microscopy.
doi_str_mv 10.1021/ma0502809
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This phenomenon, namely the formation of interpenetrating spherulites (IPS), was analyzed on the basis of birefringence observed by polarizing optical microscopy. The growth direction of PEO lamellae in the PBAS spherulites was found to be along the preexisting PBAS lamellae. PEO crystals also nucleated inside PBAS spherulites and showed spherulitic growth in them at relatively high crystallization temperatures. The conditions for realizing IPS were also discussed. 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This phenomenon, namely the formation of interpenetrating spherulites (IPS), was analyzed on the basis of birefringence observed by polarizing optical microscopy. The growth direction of PEO lamellae in the PBAS spherulites was found to be along the preexisting PBAS lamellae. PEO crystals also nucleated inside PBAS spherulites and showed spherulitic growth in them at relatively high crystallization temperatures. The conditions for realizing IPS were also discussed. 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subjects Applied sciences
Crystallization
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
title Penetrating Spherulitic Growth in Poly(butylene adipate-c o-butylene succinate)/Poly(ethylene oxide) Blends
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