Morphologies and kinetics of isothermal crystallization for green polymer blends comprising phbv and enr: Influence of rubbery phase
Isothermal crystallization behavior and morphologies were studied for green polymer blends of poly(R-3-hydroxybutyrate-co-fi-3-hydroxyvalerate) (PHBV) and epoxidized natural rubber (ENR). Polarizing optical micrographs reveal the immiscibility of the systems in the molten state. Exponential decay of...
| Published in: | International Journal of Pharmacy and Pharmaceutical Sciences |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
2011
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| Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952098325&partnerID=40&md5=e05c246326b4288f7373aba58a05405c |
| Summary: | Isothermal crystallization behavior and morphologies were studied for green polymer blends of poly(R-3-hydroxybutyrate-co-fi-3-hydroxyvalerate) (PHBV) and epoxidized natural rubber (ENR). Polarizing optical micrographs reveal the immiscibility of the systems in the molten state. Exponential decay of the rates of crystallization with ascending isothermal crystallization temperatures (Tc) is observed for both neat PHBV and PHBV in the blends. Besides, the rates of crystallization of PHBV decrease with increasing ENR content at Tc = const. Rubbery phase of ENR influences the crystallization behavior of PHBV which in turn affects morphology formation in these blends. These blends with biodegradable and elastic properties are proposed to be potential pharmaceutical packaging material. |
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| ISSN: | 9751491 |