Preparation and Optical Properties of Poly[3,4-Bis-(1,3-Dioxane-2-Ylethyl)] Thiophene

Abstract:

A new polythiophene derivative, poly[3,4-bis-(1,3-dioxane-2-ylethyl) thiophene] (PBDT) with two 1,3-dioxane groups was synthesized via two-step strategy. Firstly, a precursor polymer poly(3,4-dibromothiophene) (PDBrT) was prepared, and secondly the bromo-atoms were substituted by 1,3-dioxan-2-ylethyl groups to get the target polymer. The later reaction was monitored by FTIR spectroscopy. Molecular weights of PBDT were measured by GPC. In addition, the optical absorption and photoluminescence (PL) of PBDT and PDBrT were investigated and demonstrated that the maximum emission wavelength of PBDT was red-shifted about 80 nm in comparison with that of PDBrT, which was due to the effects of electron withdrawing and steric repulsion between two 1,3-dioxane-2-ylethyl groups.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 1423-1426
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.1423
• Online since: December 2011
• Authors: Guo Lun Zhong, Yu Jiao Jiang, Rong Li, Fei Chen, Hong Lei Mao, Yong Hong Wang
• Keywords: 1 3-Dioxane Group, FT-IR, Photoluminescence (PL), Red Shift

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