Author : Shannon L. Watt
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (262 download)
Book Synopsis Synthesis and Characterization of Regioregular, Amphiphilic Semifluoroalkyl-substituted Polythiophenes and Cofacial Bis(oligothienyl)naphthalenes by : Shannon L. Watt
Download or read book Synthesis and Characterization of Regioregular, Amphiphilic Semifluoroalkyl-substituted Polythiophenes and Cofacial Bis(oligothienyl)naphthalenes written by Shannon L. Watt and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated polymers and oligomers have been widely studied based on their wide range of useful properties and applications. Given the importance of self-assembly and charge transfer in the development of conjugated materials for use in electronic applications, it is crucial to: (i) prepare functional materials by molecular design, (ii) evaluate the structure-property relationships of new materials, and (iii) develop fundamental understanding of electronic structure and charge transport behavior. The use of conjugated polymeric materials in electronic applications relies on control of the assembly and orientation of the polymer chains in the solid state. Conjugated polymers with liquid crystalline behavior could be used to implement an additional level of control over orientation and resultant properties. Substitution of the conjugated polythiophene backbone with semifluoroalkyl side chains (i.e., the diblock -(CH2)m(CF2)nF) has afforded materials with unusual properties. The mutual immiscibility of the aromatic backbone, the alkyl side-chain segments, and the fluoroalkyl side-chain termini provides control over supramolecular packing. A series of eight polymers has been synthesized, in which the lengths of the alkyl (m) and fluoroalkyl (n) segments are varied. One regiorandom analogue and two poly(3-alkylthiophene)s were also synthesized for comparative purposes. The structure, molecular weight, and regioregularity of the polymers were evaluated using a variety of techniques.
