A MONTE CARLO SIMULATION STUDY OF THE EFFECT OF CHAIN LENGTH ON THE HYDROLYSIS OF POLY(LACTIC ACID)

Zhuo-li Lin; Jun Luo; Zheng-jian Chen; Jun Yi; Hong-liang Jiang; Ke-hua Tu; Li-qun Wang

doi:10.1007/s10118-013-1353-1

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A MONTE CARLO SIMULATION STUDY OF THE EFFECT OF CHAIN LENGTH ON THE HYDROLYSIS OF POLY(LACTIC ACID)

PAPER | Updated：2023-01-03

- A MONTE CARLO SIMULATION STUDY OF THE EFFECT OF CHAIN LENGTH ON THE HYDROLYSIS OF POLY(LACTIC ACID)
- Chinese Journal of Polymer Science Vol. 31, Issue 11, Pages: 1554-1562(2013)
- Affiliations：
  
  MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Author bio：
  
  **Li-qun Wang (王利群), E-mail: lqwang@zju.edu.cn
- Funds：
- DOI：10.1007/s10118-013-1353-1
  CLC：
- Received：04 December 2012，
  
  Revised：2013-01-02，
  
  Accepted：14 January 2013，
  
  Published：2013-11
- Accepted：
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Zhuo-li Lin, Jun Luo, Zheng-jian Chen, et al. A MONTE CARLO SIMULATION STUDY OF THE EFFECT OF CHAIN LENGTH ON THE HYDROLYSIS OF POLY(LACTIC ACID)[J]. Chinese Journal of Polymer Science, 2013, 31(11): 1554-1562.
DOI：

Zhuo-li Lin, Jun Luo, Zheng-jian Chen, et al. A MONTE CARLO SIMULATION STUDY OF THE EFFECT OF CHAIN LENGTH ON THE HYDROLYSIS OF POLY(LACTIC ACID)[J]. Chinese Journal of Polymer Science, 2013, 31(11): 1554-1562. DOI： 10.1007/s10118-013-1353-1.

摘要

Abstract

The intrinsic relationship between molecular chain length and the probability of chain reaction during poly(lactic acid) (PLA) hydrolysis was investigated by Monte Carlo simulation. The chain reaction rate was calculated by introducing a power function of different molecular chain lengths. The hydrolysis of both amorphous and extended-chain crystal PLA was selected as the model system. It is found that

the chain reaction probability was proportional to the chain length with a power of 0.4 for amorphous PLA and 0.7−1 for extended-chain crystal PLA

respectively. These results indicate that PLA with longer chain length usually exhibits larger reaction rate than that with shorter length. Comparing the hydrolysis of the two kinds of PLA

the competition between longer and shorter chains in the different condensed structures is different.

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