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Full Paper
Synthesis, Characterization and Curing of Bioinspired Polymers Based on Vinyl Benzyl Thymine and Triethyl Ammonium Chloride
Article first published online: 22 JUN 2010
DOI: 10.1002/mren.201000001
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Issue
Macromolecular Reaction Engineering
Special Issue: New Frontiers in Polymer Engineering
Volume 4, Issue 6-7, pages 453–459, June 25, 2010
Additional Information
How to Cite
Barbarini, A. L., Estenoz, D. A. and Martino, D. M. (2010), Synthesis, Characterization and Curing of Bioinspired Polymers Based on Vinyl Benzyl Thymine and Triethyl Ammonium Chloride. Macromolecular Reaction Engineering, 4: 453–459. doi: 10.1002/mren.201000001
Publication History
- Issue published online: 1 JUL 2010
- Article first published online: 22 JUN 2010
- Manuscript Revised: 6 APR 2010
- Manuscript Received: 5 JAN 2010
Funded by
- CONICET. Grant Numbers: PIP 2009 112-200801-02550, 112-200801-01079
- Universidad Nacional del Litoral. Grant Numbers: CAI + D 2009 PI-67-338, PI-11-57
- ANPCyT. Grant Number: PICT 2006-02179
- Abstract
- Article
- References
- Cited By
Keywords:
- bioinspiration;
- biomimetic;
- crosslinking;
- green chemistry;
- thymine
Graphical Abstract
The synthesis and curing of “bioinspired” copolymers based on vinylbenzyl thymine (VBT) and ionically charged vinylbenzyl triethylammonium chloride (VBA) monomers are studied. The environmentally benign, non-toxic and recyclable polymers obtained can be used as substitutes for traditional materials in photo-resist technologies.
Abstract
A novel class of environmentally benign, non-toxic and recyclable materials based on vinylbenzyl thymine (VBT) and an ionically-charged vinylbenzyl triethylammonium chloride (VBA) monomers was studied. Several syntheses of VBT–VBA copolymers at various comonomer ratio and initiator concentrations were carried out at 65 °C using isopropanol as solvent. Samples were taken during the reactions to determine the monomer conversion, chemical composition and molecular weight distribution. The comonomers exhibited similar reactivities and random copolymers with similar chemical compositions were obtained. The curing process involved the irradiation of the copolymer films with a short-wavelength UV light (254 nm) for different times, leading to film immobilization on the substrate. The light-induced crosslinking reaction was followed by UV-vis spectroscopy and the immobilization point relative to the gel point was determined. The kinetics of the crosslinking process pointed to a second-order process with respect to the thymine concentration. The experimental results provide complementary information on photo-induced immobilization of VBT–VBA films that are crucial for developing new classes of environmentally benign materials and new energy-saving methods.