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Preparation and characterization of blend membranes of polyurethane and superfine chitosan powder

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Abstract

A novel kind of asymmetric blend membranes with superfine chitosan powder (SCP) and biomedical polyurethane was prepared by immersion precipitation phase inversion method. Effects of different SCP content on the morphology and properties of the blend membranes were investigated. The result showed that SCP content had little influence on the cross-section structure of the blend membranes, and the cross-section presented a cellular structure. WAXD results revealed that the aggregated structure of SCP remained. With an increment of SCP content, the pore diameter and porosities of blend membranes increased firstly, and then decreased. While, the water absorption rate and water vapor transmission rate were improved remarkably with increasing SCP content. The mechanical testing results indicated that with an increment of SCP ratio, mechanical properties presented a descending trend, whereas all blend membranes exhibited the good elasticity.

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Acknowledgments

The authors want to express their gratitude to the Major Grant of Hubei provincial department of education of China (No: Z200717001) for supporting this work.

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Authors and Affiliations

  1. Key Laboratory for Green Processing and Functional Textile of New Textile Materials, Ministry of Education, Wuhan University of Science and Engineering, 430073, Hubei, People’s Republic of China

    Dan-Ying Zuo, Yong-Zhen Tao, Yu-Bo Chen & Wei-Lin Xu

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  1. Dan-Ying Zuo
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  2. Yong-Zhen Tao
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  3. Yu-Bo Chen
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  4. Wei-Lin Xu
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Correspondence to Wei-Lin Xu.

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Zuo, DY., Tao, YZ., Chen, YB. et al. Preparation and characterization of blend membranes of polyurethane and superfine chitosan powder. Polym. Bull. 62, 713–725 (2009). https://doi.org/10.1007/s00289-009-0049-8

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  • DOI: https://doi.org/10.1007/s00289-009-0049-8

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