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Preparation and Properties of New Copoly(amide-imide-ether-urethane)s based on Bis(p-amido benzoic acid)-N-trimellitylimido-L-leucine by Two Different Polymerization Methods

Preparation and Properties of New Copoly(amide-imide-ether-urethane)s based on Bis(p-amido... Two series of new optically active poly(amide-imide-ether-urethane)s (PAIEU)s based on polytetrahydrofuran (PTHF), of Mn=1000 as soft segment were synthesized. These copolymers were prepared via direct polycondensation reaction of an aromatic diacid based on L-leucine with preformed imide ring, 4,4’-methylene-bis-(4-phenylisocyanate) (MDI) and PTHF-1000. The effects of different reaction conditions and method of preparation (one-step vs. two-step method) on the physical properties of these new PAIEUs have been investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide angle X-ray scattering (WAXS), FTIR spectroscopy, and dynamic mechanical thermal analysis (DMTA). The effect of the introduction of bis(p-amido benzoic acid)-N-trimellitylimido-L-leucine (BPABTL) (1) into PU back-bone on their properties was also studied. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Bulletin Springer Journals

Preparation and Properties of New Copoly(amide-imide-ether-urethane)s based on Bis(p-amido benzoic acid)-N-trimellitylimido-L-leucine by Two Different Polymerization Methods

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References (27)

Publisher
Springer Journals
Copyright
Copyright © 2006 by Springer-Verlag
Subject
Chemistry; Polymer Sciences; Soft and Granular Matter, Complex Fluids and Microfluidics; Characterization and Evaluation of Materials; Physical Chemistry; Organic Chemistry
ISSN
0170-0839
eISSN
1436-2449
DOI
10.1007/s00289-006-0674-4
Publisher site
See Article on Publisher Site

Abstract

Two series of new optically active poly(amide-imide-ether-urethane)s (PAIEU)s based on polytetrahydrofuran (PTHF), of Mn=1000 as soft segment were synthesized. These copolymers were prepared via direct polycondensation reaction of an aromatic diacid based on L-leucine with preformed imide ring, 4,4’-methylene-bis-(4-phenylisocyanate) (MDI) and PTHF-1000. The effects of different reaction conditions and method of preparation (one-step vs. two-step method) on the physical properties of these new PAIEUs have been investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide angle X-ray scattering (WAXS), FTIR spectroscopy, and dynamic mechanical thermal analysis (DMTA). The effect of the introduction of bis(p-amido benzoic acid)-N-trimellitylimido-L-leucine (BPABTL) (1) into PU back-bone on their properties was also studied.

Journal

Polymer BulletinSpringer Journals

Published: Aug 21, 2006

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