Paper Title:
Synthesis and Characterization of Biodegradable Aliphatic-Aromatic Copolyesters Nanocomposites Containing POSS
  Abstract

Biodegradable aliphatic-aromatic copolyesters/POSS nanocomposites were synthesized via in situ melt copolycondensation of terephthalic acid (TPA), poly(L-lactic acid) oligomer (OLLA), 1,4-butanediol (BDO) and polyhedral oligomeric silsesquioxanes (POSS) reagents (POSS-NH2 and POSS-PEG). The morphologies and dispersions of two POSS reagents in the nanocomposites and their effects on the mechanical and thermal properties were investigated. TEM and XRD characterizations confirmed that POSS-NH2 formed crystalline microaggregates and took poor dispersions in the nanocomposite, while POSS-PEG had better dispersion in the matrix. Due to the good dispersion and interfacial adhesion of POSS-PEG with the copolyester PBTL matrix, the tensile strength and the Young’s modulus greatly increased for PBTL/POSS-PEG nanocomposite. Moreover, compared with POSS-NH2 the existence of POSS-PEG imparted PBTL good flexibility and increased the mobility of the chains, so the glass-transition temperature and the heat of melting as well as the elongation at break were obviously influenced for PBTL/POSS-PEG nanocomposite.

  Info
Periodical
Advanced Materials Research (Volumes 236-238)
Edited by
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
Pages
2028-2031
DOI
10.4028/www.scientific.net/AMR.236-238.2028
Citation
B. T. Wang, Y. Zhang, Z. P. Fang, "Synthesis and Characterization of Biodegradable Aliphatic-Aromatic Copolyesters Nanocomposites Containing POSS", Advanced Materials Research, Vols. 236-238, pp. 2028-2031, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M. Namkajorn, Atitsa Petchsuk, Mantana Opaprakasit, Pakorn Opaprakasit
Abstract:PLA-based aliphatic aromatic copolyesters have been synthesized and characterized in order to incorporate the degradability of PLA and good...
785
Authors: Lian Liu, Zhi Yong Wei, Pei Wang, Min Qi
Abstract:The aim of this paper is to present a synthesis method of biodegradable aliphatic polyesters by the ring opening polymerization of lactones...
1109
Authors: Tao Tao Qiang, Xue Chuan Wang, Xian Bo Lu, Long Fang Ren
Abstract:Hydroxyl-terminated hyperbranched polyurethane elastomer (HBPU) was synthesized by graft copolymerization of hyperbranched poly (amine-ester)...
525
Authors: Ming Ji Zhou, Qing Ze Jiao, Yun Zhao, Wen Jia Cui
Chapter 5: Materials Science & Engineering
Abstract:A waterborne polyurethane (WPU) dispersoid was synthesized through the prepolymer method using aliphatic isocyanates [namely isophorone...
674
Authors: Haroon A.M. Saeed, Yassir A. Eltahir, Yu Min Xia, Yi Min Wang
Chapter 1: Chemical Materials
Abstract:Hydroxyl-terminated hyperbranched polyesters (HBPET) with aromatic-aliphatic structure were synthesized by melt polycondensation of...
80