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Nanostructured Interpenetrating Polymer Network (IPN) Precursor Ultrathin Films

✍ Scribed by Paralee Waenkaew; Prasad Taranekar; Guoqian Jiang; Cheng Yu Huang; Timothy Fulghum; Derek Patton; Lalithya Jayarathna; Sukon Phanichphant; Rigoberto C. Advincula

Book ID
102940600
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
673 KB
Volume
212
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

The formation of a nanostructured interpenetrating polymer network (IPN) via electropolymerization is described. The electro‐copolymerization of alternate layer‐by‐layer (LbL) self‐assembled polyelectrolytes with thiophene and carbazole pendant monomers was demonstrated facilitating IPN formation of π‐conjugated polymers or conjugated polymer network (CPN) films. UV–Vis spectroscopy, QCM, and ellipsometry confirmed linear nanostructured LbL film growth. Electrochemical crosslinking by cyclic voltammetry (CV) manifested highly regular peak current increases with successive cycles. A quantitative correlation of the LbL layer number with the cathodic charge and scan rate was observed. Electrochemical impedance analysis confirmed CPN film formation and the change in capacitance behavior. magnified image

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Processing of polyurethane–polyester int
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✍ T. Jeffrey Hsu; L. James Lee 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 880 KB

The kinetics and heat transfer during the curing of a polyurethane-polyester interpenetrating polymer network (IPN) were investigated experimentally and theoretically. A model based on the additivity rule of constituent ingredients was used to predict the IPNs reaction kinetics and heat transfer. Co