Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend

The hydrolytic degradation of poly-b-(hydroxybutyrate) PHB, poly-b- (hydroxybutyrate-co-b-valerate) (PHBV) and PHBV/cellulose triacetate blend was sutnuddeire dd ifferent pH at 37 °C. PHBV showed a similar trend of degradation to PHB but at rhaitgehse irn alkaline medium. The presence of cellulo...

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Main Authors: Muhamad, Ida Idayu, Lee, Kar Joon, Mohd. Noor, Mohd. Azemi
Format: Article
Language:English
Published: Plastics and Rubber Institute of Malaysia 2006
Subjects:
Online Access:http://eprints.utm.my/8108/1/8108.pdf
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author Muhamad, Ida Idayu
Lee, Kar Joon
Mohd. Noor, Mohd. Azemi
author_facet Muhamad, Ida Idayu
Lee, Kar Joon
Mohd. Noor, Mohd. Azemi
author_sort Muhamad, Ida Idayu
collection ePrints
description The hydrolytic degradation of poly-b-(hydroxybutyrate) PHB, poly-b- (hydroxybutyrate-co-b-valerate) (PHBV) and PHBV/cellulose triacetate blend was sutnuddeire dd ifferent pH at 37 °C. PHBV showed a similar trend of degradation to PHB but at rhaitgehse irn alkaline medium. The presence of cellulose triacetate in the blend increased the water uptake and permeability which favoured the hydrolytic degradation especially in lpoHw mere dium. In the surface hydrolysis of PHB and its blends, the overall degradation rate was increased with higher pH values. The melting temperature, crystallinity and tensile properties were also determined. The blend, PHBV/CTAc had the lowest crystallinity values and hPaHdB t he highest. However, the blends were mechanically better in strength and toughness
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spelling utm.eprints-81082012-08-28T02:29:14Z http://eprints.utm.my/8108/ Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend Muhamad, Ida Idayu Lee, Kar Joon Mohd. Noor, Mohd. Azemi TP Chemical technology The hydrolytic degradation of poly-b-(hydroxybutyrate) PHB, poly-b- (hydroxybutyrate-co-b-valerate) (PHBV) and PHBV/cellulose triacetate blend was sutnuddeire dd ifferent pH at 37 °C. PHBV showed a similar trend of degradation to PHB but at rhaitgehse irn alkaline medium. The presence of cellulose triacetate in the blend increased the water uptake and permeability which favoured the hydrolytic degradation especially in lpoHw mere dium. In the surface hydrolysis of PHB and its blends, the overall degradation rate was increased with higher pH values. The melting temperature, crystallinity and tensile properties were also determined. The blend, PHBV/CTAc had the lowest crystallinity values and hPaHdB t he highest. However, the blends were mechanically better in strength and toughness Plastics and Rubber Institute of Malaysia 2006 Article PeerReviewed application/pdf en http://eprints.utm.my/8108/1/8108.pdf Muhamad, Ida Idayu and Lee, Kar Joon and Mohd. Noor, Mohd. Azemi (2006) Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend. Malaysian Polymer Journal, 1 (1). pp. 39-46. ISSN 1823-7789 http://www.fkkksa.utm.my/mpj/images/04idayu.pdf
spellingShingle TP Chemical technology
Muhamad, Ida Idayu
Lee, Kar Joon
Mohd. Noor, Mohd. Azemi
Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend
title Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend
title_full Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend
title_fullStr Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend
title_full_unstemmed Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend
title_short Comparing the degradation of Poly-B-(hydroxybutyrate), poly-B-(hydroxbutyrate-co-valerate)(PHBV) and PHBV/cellulose tricate blend
title_sort comparing the degradation of poly b hydroxybutyrate poly b hydroxbutyrate co valerate phbv and phbv cellulose tricate blend
topic TP Chemical technology
url http://eprints.utm.my/8108/1/8108.pdf
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