Paper Title:
Research on Preparation and Hydrolysis Resistance of Poly(lactic acid) Modified by MDI
  Abstract

The poly(lactic acid) (PLA) was modified by 4,4'-diphenylmethane diisocyanate (MDI) successfully prepared to improve the stability of PLA. The MDI and the hydroxyl terminated PLA could form PLA modified by MDI (MDI-PLA) via addition reaction. The structure of MDI-PLA was confirmed by FTIR and its degradation properties were investigated. The results showed that the pH of the aqueous media and the ion strength together played an important role in the degradation behavior of the PLA and MDI-PLA. Both of the PLA and MDI-PLA had the highest degradation rate in 0.01 M NaOH. It offers the best stability to hydrolysis resistance by adding the 0.6 wt% of MDI to the PLA materials,and have a more stable of 15 times than unmodified PLA.

  Info
Periodical
Chapter
Chapter 1: Key Engineering Materials
Edited by
Jun Hu and Qi Luo
Pages
112-117
DOI
10.4028/www.scientific.net/AMR.320.112
Citation
J. J. Shang, J. N. Wu, D. Q. Li, Y. X. Huang, L. M. Zhao, J. Wang, Z. Y. Liu, "Research on Preparation and Hydrolysis Resistance of Poly(lactic acid) Modified by MDI", Advanced Materials Research, Vol. 320, pp. 112-117, 2011
Online since
August 2011
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Price
$32.00
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