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Side-chain Effects on the Morphology and Properties of Fluorene-based Alternating Copolymers by Peng Chen; Gui-Zhong Yang; Chuan-Ming Wang; Weizhi Wang; Min Wang; Tianxi Liu is a Materials Science article available to read on EtoBox.

What is Side-chain Effects on the Morphology and Properties of Fluorene-based Alternating Copolymers about?

## Abstract Soluble fluorene‐based alternating copolymers containing benzene as the comonomer were synthesized and characterized, in which three different side chains (hydrogen atom, linear octyloxy and bulky benzyloxy groups) were attached to the phenylene ring. The effect of the side chains with different steric hindrances on the photophysical, thermal and electrochemical properties as well as the morphology were investigated. Moreover, the chain conformation and spectroscopic properties in dilute solution were studied to understand the solvent effect. Aliphatic and aromatic solvents were demonstrated to have different influences on the spectra of the polymers owing to various interaction mechanisms in the excited states. Also, a significant decrease of up to 80 °C in the thermal degradation temperature was observed as a result of the introduction of large benzyloxy units. The energy levels of the highest occupied molecular orbital and the lowest unoccupied molecular orbital of the polymers were estimated to be − 5.76 to − 5.82 eV and − 2.19 to − 2.27 eV, respectively, from cyclic voltammetry measurements. In addition, the electronic structures of the polymers were described via

Who reads Side-chain Effects on the Morphology and Properties of Fluorene-based Alternating Copolymers?

Author

Peng Chen; Gui-Zhong Yang; Chuan-Ming Wang; Weizhi Wang; Min Wang; Tianxi Liu

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0959-8103)

Published

2007

Language

EN

Field

Materials Science (Physical Sciences)