共轭体系
材料科学
热电效应
聚合物
甲磺酸
高分子化学
化学工程
有机化学
化学
复合材料
热力学
物理
工程类
作者
Teck Lip Dexter Tam,Ming Lin,Sheau Wei Chien,Jianwei Xu
出处
期刊:ACS Macro Letters
[American Chemical Society]
日期:2021-12-28
卷期号:11 (1): 110-115
被引量:13
标识
DOI:10.1021/acsmacrolett.1c00696
摘要
Here we report the synthesis of a new solubilizing group-free, solution-processable p-type ladder conjugated polymer, 6H-pyrrolo[3,2-b:4,5-b']bis[1,4]benzothiazine ladder (PBBTL) polymer by using a polyphosphoric acid (PPA) and phenylphosphonic acid (PhPO3H2) 1:1 binary acid solvent system together with careful control of reaction kinetics. With a good intrinsic viscosity of 3.69 dL/g in methanesulfonic acid (MSA), good quality PBBTL films can be obtained via spin-coating. Intrinsic thin film properties and thermoelectric performance of PBBTL were evaluated, making it the second solubilizing group-free, solution-processable ladder-type conjugated polymer after BBL to be used for thin-film polymer electronics. While our preliminary thermoelectric performance of the FeCl3-doped PBBTL films is modest, we believe that many opportunities lie ahead for PBBTL and hope that its successful synthesis using the new PPA:PhPO3H2 binary acid solvent system will inspire synthetic organic chemists to relook into solubilizing group-free, solution-processable ladder-type conjugated polymer systems.
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