Preparation and Characterization of Phenylenevinylene Homopolymer and Block Copolymer by Ring Opening Metathesis Polymerization

• Main Authors: Cheng-Ying Yang, 楊承穎
• Other Authors: Cheng-Yang Yu
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/68616497533909908278

碩士 === 國立臺灣科技大學 === 材料科學與工程系 === 102 === Conjugate polymers have been wildly used as potential materials on the organic light emitting diode (OLEDs) devices, polymer solar cells (PSCs) and organic field effect transistors (OFETs). We prepared a series of cyclophanediene monomers containing electron donating or electron withdrawing substituents, and an unreported tri-layered cyclophanetetraene monomer. It would be a potential conjugate dendrimer polymer or conjugate star materials. These kinds of ring strained molecules can be ring opened to form phenylenevinylene polymers through ring opening metathesis polymerization (ROMP). Herein we report the preparation of phenylenevinylene homopolymers and block copolymers and their optical, electrochemical properties. Phenylenevinylene homopolymers and the block copolymer can be prepared by ROMP of cyclophanedienes in the presence Grubbs II initiator. The polymers have been fully characterized by 1H NMR spectroscopy and the optical and electrochemical properties can be determined by UV-Vis, PL spectroscopy and cyclic voltammetry. Overall, these new polymers are interesting and will be applied to optoelectronic devices such as organic photovoltaics or light emitting diodes