EFFECT OF MULTI-WALLED CARBON NANOTUBES ON THE BIODEGRADABLE BEHAVIOR OF POLY (L-LACTIDE) IN VITRO
Composites based on multi-walled carbon nanotubes (MWCNTs)s and poly(L-lactide) (PLLA) were prepared by using solvent casting method. Both carboxylated MWCNTs and pristine MWCNTs were considered in order to investigate the interactions between PLLA and MWCNTs and to understand the role of the filler in the biodegradability. In vitro degradation studies were performed by measurement of weight loss, FT-IR, DSC and SEM over a 30 weeks period. Pristine MWCNTs and carboxylated MWCNTs had a different effect on the degradation of PLLA. Thermal properties of MWCNTs based PLLA composites changed compared to neat PLLA. A possible mechanism of MWCNTs effect on the degradation of PLLA was discussed.
Multi-walled carbon nanotubes (MWCNTs) biodegradable properties poly(L-lactide) PLLA
JIANGTAO FENG JIEHE SUI ALI NABIPOUR CHAKOLI WEI CAI
School of Material Science and Engineering, Harbin Institute of Technology, Harbin, China
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1503-1509
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）