The Effect of Acyl Sidechain on the Hydrogen Bonds in O–acylated Oligochitosan/PLLA Blend Films

Chin J Mater Res

2011, Vol. 25

Issue (4): 337-341 DOI:

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The Effect of Acyl Sidechain on the Hydrogen Bonds in O–acylated Oligochitosan/PLLA Blend Films

LI Mingchun, XIN Meihua, LI Zhonghuang, MAO Yangfan

College of Material Science and Engineering, Huaqiao University, Xiamen 361021

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LI Mingchun XIN Meihua LI Zhonghuang MAO Yangfan. The Effect of Acyl Sidechain on the Hydrogen Bonds in O–acylated Oligochitosan/PLLA Blend Films. Chin J Mater Res, 2011, 25(4): 337-341.

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Abstract Three kinds of O-acylated oligochitosans/poly (L-lactic acid) (OCS/PLLA) blend films were prepared by solution-casting approach using CHCl3, the hydrogen-bond interaction between OCS and PLLA were characterized by FTIR, WAXD, DSC and TG techniques. The results show that there are strong hydrogen-bond interactions in the OCS/PLLA blend films, and the interactions mainly appeare between the amine group of OCS and the carbonyl group of PLLA. The length of acyl sidechain of oligochitosan affects the hydrogen-bond interaction greatly, and the miscibility of the blend films. The shorter sidechains, the stronger hydrogen-bond interaction, as well as the better compatible of the OCS/PLLA blend films.

Key words: organic polymer materials O-acylated oligochitosan PLLA blend film hydrogen bond miscibility

Received: 14 December 2010

ZTFLH:	TB324
	O636

Fund:

Supported by National Natural Science Foundation of China No.20574024, the Key Science Projects of Fujian Province No.2009H0030, The Natural Science Foundation of Fujian Province Nos.E0810019 & 2009J01029, the Ministry of Science and Technology Personnel Service Enterprise Project.

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https://www.cjmr.org/EN/ OR https://www.cjmr.org/EN/Y2011/V25/I4/337

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