Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 96: Issue 1
Synthesis and structure of biodegradable hexylene terephthalate-co-lactide copolyesters
Authors:
Y. Chen Nanchang University Institute of Polymers, Department of Chemistry Nanchang 330031 People’s Republic of China

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L. Tan Nanchang University Institute of Polymers, Department of Chemistry Nanchang 330031 People’s Republic of China

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W. Zhou Nanchang University Institute of Polymers, Department of Chemistry Nanchang 330031 People’s Republic of China

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J. Su Nanchang University Institute of Polymers, Department of Chemistry Nanchang 330031 People’s Republic of China

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Y. Yang Nanchang University Institute of Polymers, Department of Chemistry Nanchang 330031 People’s Republic of China

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Y. Hu Jingdezhen Ceramic Institute College of Mechanical and Electronic Engineering Jingdezhen 333001 China

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Pages:
307–313
Online Publication Date:
12 Mar 2009
Publication Date:
01 Apr 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-008-9031-1
Keywords:
biodegradation; copolyesters; lactide; poly(hexylene terephthalate)
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Abstract  

To obtain a biodegradable polymer material with satisfactory thermal properties, higher elongation and modulus of elasticity, a new copolyester, poly(hexylene terephthalate-co-lactide) (PHTL), was synthesized via direct polycondensation from terephthaloyl dichloride, 1,6-hexanediol and oligo(lactic acid). The resulting copolyesters were characterized by proton nuclear magnetic resonance (1H NMR), differential scanning calorimetry (DSC), thermogravimetry (TG) and wide-angle X-ray scattering (WAXS). By using the relative integral areas of the dyad peaks in 1H NMR spectrum of copolyesters PHTL, the sequence lengths of the hexylene terephthalate and lactide units in the resultant copolyesters are 3.5 and 1.5, respectively. Compared to poly(hexylene terephthalate) (PHT), PHTL has lower Tm but higher Tg due to the incorporation of lactide unit into the main chains of copolyesters. The degradation test of copolyesters under a physiological condition shows that the degradability of PHTL is sped up due to incorporation of lactide segments.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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