THERMAL BEHAVIOR AND TENSILE PROPERTIES OF CROSSLINKED BLENDS OF POLY(L-LACTIC ACID) AND POLY(ETHYLENE GLYCOL)
Poly(L-lactic acid) (PLLA), a biodegradable polyester which is biocompatible in the human body and renewable from nature materials, has received a lot of attention.1 Its inherent brittleness can be overcome by blending with an effective plasticizer polyethylene glycol) (PEG). However, there is evidence that this blend is not stable and the attractive mechanical properties are lost over time.2 Possible reasons are the slow crystallization PEG and cold crystallization of PLLA from the quenched blends. It is well known that crosslinking of polymer chains results in a reduction in the crystallinity of polymer, and the improvement of the polymers mechanical and thermal properties.3 In this study blends of PLLA and PEG were induced to crosslink under irradiation at the presence of crosslinking agent triallyl isocyanurate (TAIC), so that the crystallization of PLLA and PEG can be suppressed.
Zhiyuan Jia Juanjuan Tan Kunyu Zhang Changyu Han Lisong Dong Yuming Yang
State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Graduate School of Chinese Academy of Sciences Changchun 130022,Peoples Republic of China
国际会议
International Symposium on Polymer Physics(2008年国际高分子物理学术会议PP2008)
厦门
英文
383-384
2008-06-08（万方平台首次上网日期，不代表论文的发表时间）