Polyurethane-based conducting polymer blends - I. Effect of chain extender

被引:59
作者
Ho, KS
Hsieh, KH
Huang, SK
Hsieh, TH
机构
[1] Natl Kaohsiung Inst Technol, Dept Chem Engn, Kaohsiung 807, Taiwan
[2] Natl Taiwan Univ, Dept Chem Engn, Taipei 10764, Taiwan
关键词
polyurethane; chain extender; IR-spectra;
D O I
10.1016/S0379-6779(99)00144-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Polyurethane (PU) with (m-phenylene 4-diaminosulfonic acid: PDSA) as chain extender can deeply influence the properties of its blending with n-dodecyl benzene sulfonic acid (DBSA) doped polyaniline (PADB) The sulfonic chain extender (PDSA) provides an additional probability of creating H-bonding with PADB molecules which can be characterized by IR-spectra. In the presence of intermolecular H-bonding, the conductivity and tensile strength of the PADB/PU blends can be changed, especially when the conducting PADB forms a continuous phase in the matrix at high PADB composition. Thermal analysis also reveals variation of glass transition points of the blends at various composition due to the interaction and different degree of miscibility. Scanning electronic microscopy (SEM) pictures of the blends demonstrate a more deformed type of morphology when PDBA is used as a chain extender in the preparation of PU. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:65 / 73
页数:9
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