Observable temperature-dependent compaction-decompaction of cationic polythiophene in the presence of iodide.

Abstract

Investigation on compaction and decompaction of polymers is very important since it is a fundamental problem in polymer physics. With the aids of atomic force microscope (AFM) and dynamic light scattering (DLS) measurements in this contribution, the temperature-dependent compaction/decompaction transition process of water-soluble cationic polythiophene (PT) was investigated in the presence of KI. The above process is characterized by the red-to-yellow color change and fluorescence recovery and is reversible during the heating-cooling cycles in the range from 25 to 55 °C, indicating that the compaction and decompaction of polymer can be employed as a temperature indicator.

• Authors: Jian Wang, Qing Zhang, Ke Jun Tan, Yun Fei Long, Jian Ling, Cheng Zhi Huang
• Journal: The journal of physical chemistry. B (J Phys Chem B) Vol. 115 Issue 7 Pg. 1693-7 (Feb 24 2011) ISSN: 1520-5207 [Electronic] United States
• PMID: 21288043 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Cations
• Polymers
• Thiophenes
• Potassium Iodide
• polythiophene

Topics

• Cations (chemistry)
• Polymers (chemistry)
• Potassium Iodide (chemistry)
• Solubility
• Spectrometry, Fluorescence
• Temperature
• Thiophenes (chemistry)