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Vapor-Induced Response of HTPB/MWNTs-COOH PU Conductive Films Based on Hydrogen Bonding Interactions

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Abstract:

Novel polyurethane (PU) conducting films consisting of hydroxyl-terminated polybutadienes (HTPB) and carboxyl functionalized multi-walled carbon nanotubes (MWNTs-COOH) were developed by a simple coupling approach based on hydrogen bonding interactions between MWNTs-COOH and PU moieties. The morphologies and structural characterization were conducted by means of FTIR, TEM and TGA etc; and the influence of the MWNTs-COOH loading and curing temperature on vapor response was investigated. The experimental results indicated that a micro-phase separation structure between soft and hard segments was formed, and MWNTs-COOH was tightly encapsulated by PU moieties and homogeneously dispersed in the PUs. The developed films displayed selective response to non-polar organic solvent vapor and good long-term stability.

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Periodical:

Materials Science Forum (Volumes 663-665)

Pages:

141-145

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.663-665.141

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Online since:

November 2010

Authors:

Yan Ling Luo, Li Niu, Feng Xu, Yong Yao

Keywords:

Carboxyl-Functionalized Multi-Wall Carbon Nanotube, Conductive Composite Material, Polyurethane Film, Vapor Responsiveness

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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