Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han

Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han

Blends of poly(3-hydroxybutyrate-<?0-3-hydroxy valerate) (PHBV) with 12 mol% hydroxy valerate (HV) content and epoxidized natural rubber (ENR) with 50 mol% epoxidation level were studied along with the thermal properties and morphologies. Glass transition temperatures reveal immiscibility of the...

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Main Author: Chan, Chin Han
Format: Research Reports
Language:English
Published: Research Management Institute (RMI) 2010
Subjects:
Nanostructures
Polymers. Macromolecules
Online Access:http://ir.uitm.edu.my/id/eprint/21730/
http://ir.uitm.edu.my/id/eprint/21730/1/LP_CHAN%20CHIN%20HAN%20RMI%2010_5.pdf
id uitm-21730
recordtype eprints
spelling uitm-217302018-10-03T08:57:19Z http://ir.uitm.edu.my/id/eprint/21730/ Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han Chan, Chin Han Nanostructures Polymers. Macromolecules Blends of poly(3-hydroxybutyrate-<?0-3-hydroxy valerate) (PHBV) with 12 mol% hydroxy valerate (HV) content and epoxidized natural rubber (ENR) with 50 mol% epoxidation level were studied along with the thermal properties and morphologies. Glass transition temperatures reveal immiscibility of the polymers over the entire composition range. The equilibrium melting point (Tm°) of PHBV in blends was determined applying Hoffman-Weeks step-wise annealing procedure. There is no significant variation of Tm° for PHBV with blend composition. Also the crystallinity of PHBV stays approximately constant in the blends, only a slight decrease might be recognized with increasing ENR content. The rate of crystallization of PHBV decreases with PHBV content according to a power law. Morphological studies by polarizing optical microscopy reveal a fine intraspherulitic dispersion of ENR in volume-filling PHBV spherulites, which develop during isothermal crystallization. Research Management Institute (RMI) 2010 Research Reports NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/21730/1/LP_CHAN%20CHIN%20HAN%20RMI%2010_5.pdf Chan, Chin Han (2010) Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han. [Research Reports] (Unpublished)
repository_type Digital Repository
institution_category Local University
institution Universiti Teknologi MARA
building UiTM Institutional Repository
collection Online Access
language English
topic Nanostructures
Polymers. Macromolecules
spellingShingle Nanostructures
Polymers. Macromolecules
Chan, Chin Han
Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han
description Blends of poly(3-hydroxybutyrate-<?0-3-hydroxy valerate) (PHBV) with 12 mol% hydroxy valerate (HV) content and epoxidized natural rubber (ENR) with 50 mol% epoxidation level were studied along with the thermal properties and morphologies. Glass transition temperatures reveal immiscibility of the polymers over the entire composition range. The equilibrium melting point (Tm°) of PHBV in blends was determined applying Hoffman-Weeks step-wise annealing procedure. There is no significant variation of Tm° for PHBV with blend composition. Also the crystallinity of PHBV stays approximately constant in the blends, only a slight decrease might be recognized with increasing ENR content. The rate of crystallization of PHBV decreases with PHBV content according to a power law. Morphological studies by polarizing optical microscopy reveal a fine intraspherulitic dispersion of ENR in volume-filling PHBV spherulites, which develop during isothermal crystallization.
format Research Reports
author Chan, Chin Han
author_facet Chan, Chin Han
author_sort Chan, Chin Han
title Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han
title_short Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han
title_full Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han
title_fullStr Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han
title_full_unstemmed Epoxidized natural rubber-based nanostructured polymer blends / Chan Chin Han
title_sort epoxidized natural rubber-based nanostructured polymer blends / chan chin han
publisher Research Management Institute (RMI)
publishDate 2010
url http://ir.uitm.edu.my/id/eprint/21730/
http://ir.uitm.edu.my/id/eprint/21730/1/LP_CHAN%20CHIN%20HAN%20RMI%2010_5.pdf
first_indexed 2023-09-18T23:07:12Z
last_indexed 2023-09-18T23:07:12Z
_version_ 1777418562073264128

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