This Article Full Text (PDF) All Versions of this Article: 0954008307078385v1 0954008307078385v2 0954008307078385v3 20/1/3    most recent References 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 Mallakpour, S. Articles by Meratian, S. Search for Related Content Social Bookmarking                         What's this?

Synthesis and Characterization of Organosoluble Optically Active Poly(ester-imide)s Derived from Trimellitic Anhydride, L-Methionine and Bisphenols

Organic Polymer Chemistry Research Laboratory, College of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, I.R. Iran, mallak{at}cc.iut.ac.ir

Shahrzad Meratian

Organic Polymer Chemistry Research Laboratory, College of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, I.R. Iran

The reaction of thionyl chloride in pyridine as a condensing agent was used for the direct polycondensation of N-trimellitylimido-L-methionine (4) with various aromatic diols such as bisphenol A (5a), phenolphthalein (5b), 1,5-naphthalendiol (5c), 2,6-dihydroxytoluene (5d), hydroquinone (5e), biphenyl-2,2^'-diol (5f), 1,4-dihydroxyanthraquinone (5g). This reaction leads to the formation of novel optically active poly(ester-imide)s (PEI)s. The resulting PEIs were obtained in good yields and exhibited low to moderate inherent viscosities ranging from 0.15 to 0.40 dL g^-1. All of the PEIs showed good solubility and readily dissolved in solvents such as N-methyl-2-pyrrolidinone (NMP), N,N-dimethylacetamide (DMAc), N,N-dimethylformamide (DMF), pyridine and tetrahydrofuran. Thermogravimetric analysis showed that PEI 6b was stable, with 10% weight loss recorded above 370^oC in nitrogen. All of the above polymers were characterized by FTIR, specific rotation, and representative PEIs were also characterized by ¹ H NMR, elemental analysis, and thermogravimetric analysis. The structural characterization and physical properties of these new optically active PEIs are reported.

Key Words: Organosoluble • thionyl chloride/pyridine condensing agent • trimellitic anhydride • poly(ester-imide)s • optically active polymers • thermally stable polymers

This version was published on February 1, 2008

High Performance Polymers, Vol. 20, No. 1, 3-18 (2008)
DOI: 10.1177/0954008307078385


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