Paper Title:
The Structure of PU/PNIPAAm Semi-IPN Prepared by Wet Phase Inversion Process
  Abstract

N-isopropylacrylamide(NIPAAm) was dispersed in polyurethane(PU) solution and crosslinked with N,N’-methylene bisacrylamide(BIS) to form a semi-interpenetrating polymer networks. The synthesized solution was casted into water bathes with and without 0.25M sodium chloride to get a microporous film by wet phase inversion process. The ratios of BIS amount to N-isopropylacrylamide were varied. The structure and properties of polyurethane/ poly(N-isopropylacrylamide) (PU/PNIPAAm) composite film were characterized by differential scanning calorimetry (DSC) and scanning electron microscope (SEM). The swelling behavior of PU/PNIPPAm composite films was evaluated. The results showed that the addition of sodium chloride lower the LCST of PNIPAAm and the PU/PNIPAAm composite films exhibit temperature sensitivity under swollen conditions.

  Info
Periodical
Advanced Materials Research (Volumes 152-153)
Edited by
Zhengyi Jiang, Jingtao Han and Xianghua Liu
Pages
1801-1804
DOI
10.4028/www.scientific.net/AMR.152-153.1801
Citation
Y. Xue, H. N. Lv, "The Structure of PU/PNIPAAm Semi-IPN Prepared by Wet Phase Inversion Process", Advanced Materials Research, Vols. 152-153, pp. 1801-1804, 2011
Online since
October 2010
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hai Ying Zhu, Yan Chen, Yun Ping Liu, Wei Wei Sun, Shou Gang Chen
Abstract:The present work aims at studying the corrosion resistance of carbon steel substrates pre-treated with bis-[triethoxysilylpropyl]...
1091
Authors: Hai Ning Lv, Cheng Qian, Yuan Xue, Zai Sheng Cai
Abstract:poly(N-isopropylacrylamide) (PNIPPAm) is a thermally sensitive polymeric material which exhibits large volume transition at temperatures...
1166
Authors: Qing Lan Ma, Yuan Ming Huang
Abstract:A bent-core liquid crystal compound N,N-bis (4-propoxybenzylidene)benzene- 1,3-diamine was synthesized. Phase transition properties of the...
787
Authors: Yun Hua Lu, Peng Pan, Bing Wang, Hong Bin Zhao, Zhi Zhi Hu
Chapter 8: Composites, Polymers and Biomaterials
Abstract:Two diamine monomers 2-tert-butyl-1,4-bis(4-nitro-2-trifluoromethylphenoxy)benzene and 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene were...
1636