This Article Full Text (OnlineFirst PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Tian, J. Articles by Du, L. Search for Related Content Social Bookmarking                         What's this?

Investigation of Structure/property Relationships of Polytriazoles

¹ The School of Material Science and Engineering, Key Laboratory for Specially Functional Polymeric Materials and Related Technology of Ministry of Education, East China University of Science and Technology, Shanghai 200237, P. R. China
² Shanghai Bureau of Astronautics, Shanghai 200233, P. R. China

^* To whom correspondence should be addressed.

	Abstract

Five polytriazole resins, TAMTMB-BPF, TAMTMB-BPA, TAMTMB-BPK, TAMTMB-BPE, and TAMTMB-BPR, were prepared from 1,3,5-tris(azidomethyl)-2,4,6-trimethylbenzene (TAMTMB) and dipropargyl ethers of hexafluorobisphenol A (BPF), bisphenol A (BPA), 4,4'-dihydroxybenzophenone (BPK), 4,4'-dihydroxydiphenyl ether (BPE), and resorcinol (BPR), respectively. The resins were characterized by Fourier transform infrared spectrometry, differential scanning calorimetry, dynamic mechanical analysis, and thermogravimetric analysis. The results illustrate that the structures of dipropargyl ethers had no obvious effect on the curing behavior of the polytriazole resins and the thermal stability of the cured resins. The polytriazole resins could be cured at 80 °C and further post-cured at higher temperature. The cured resins had a thermal decomposition temperature T_d5 near 360 °C. However, the structural units of the polytriazole resins influenced the glass transition temperature T_g, dielectric properties, and mechanical properties of the cured resins to some extent. The cured TAMTMB-BPF resin had the highest T_g (226 °C) and best dielectric properties among the resins, whereas the cured TAMTMB-BPR resin showed the highest flexural strength of 200.6 MPa.

Key Words: Polytriazole resins; structure/property relationship of polytriazoles; high performance polytriazoles; resins for advanced composites

First published on March 25, 2009
High Performance Polymers 2009, doi:10.1177/0954008309103126


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?