Effects of chain conformation and chain length on degree of aggregation in assembled particles of conjugated polymer in solvents-nonsolvent: A spectroscopic study

2010 ◽  
Vol 48 (8) ◽  
pp. 894-904 ◽  
Author(s):  
Rakchart Traiphol ◽  
Ruttayapon Potai ◽  
Nipaphat Charoenthai ◽  
Toemsak Srikhirin ◽  
Teerakiat Kerdcharoen ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Chain Length ◽  
Conjugated Polymer ◽  
Chain Conformation

Direct Observation of Chain Lengths and Conformations in Oligofluorene Distributions from Controlled Polymerization by Double Electron-Electron Resonance

2019 ◽  
Author(s):  
Dennis Bücker ◽  
Annika Sickinger ◽  
Julian D. Ruiz Perez ◽  
Manuel Oestringer ◽  
Stefan Mecking ◽  
...  
Keyword(s):  
Chain Length ◽  
Length Distribution ◽  
Catalyst System ◽  
Chain Conformation ◽  
Controlled Polymerization ◽  
Chain Length Distribution ◽  
Electron Resonance ◽  
Double Electron ◽  
The Individual ◽  
Double Electron Electron Resonance

Synthetic polymers are mixtures of different length chains, and their chain length and chain conformation is often experimentally characterized by ensemble averages. We demonstrate that Double-Electron-Electron-Resonance (DEER) spectroscopy can reveal the chain length distribution, and chain conformation and flexibility of the individual n-mers in oligo-(9,9-dioctylfluorene) from controlled Suzuki-Miyaura Coupling Polymerization (cSMCP). The required spin-labeled chain ends were introduced efficiently via a TEMPO-substituted initiator and chain terminating agent, respectively, with an in situ catalyst system. Individual precise chain length oligomers as reference materials were obtained by a stepwise approach. Chain length distribution, chain conformation and flexibility can also be accessed within poly(fluorene) nanoparticles.

Spectroscopic Study on Imidazolium-Based Ionic Liquids: Effect of Alkyl Chain Length and Anion

2012 ◽  
Vol 116 (11) ◽  
pp. 3512-3518 ◽  
Author(s):  
Enrico Binetti ◽  
Annamaria Panniello ◽  
Leonardo Triggiani ◽  
Raffaele Tommasi ◽  
Angela Agostiano ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Spectroscopic Study ◽  
Chain Length ◽  
Alkyl Chain ◽  
Alkyl Chain Length

Carbon Nanotube-Induced Planarization of Conjugated Polymers in Solution

2004 ◽  
Vol 858 ◽  
Author(s):  
Jian Chen ◽  
Rajagopal Ramasubramaniam ◽  
Haiying Liu
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Conjugated Polymers ◽  
Spectroscopic Study ◽  
Surface Quality ◽  
Hybrid Materials ◽  
Conjugated Polymer ◽  
Visible Absorption ◽  
The Impact ◽  
Conformational Interaction

ABSTRACTThe understanding of the conformational interaction between conjugated polymers and carbon nanotubes in solution is essential to develop the applications of carbon nanotubes, particularly conjugated polymer-carbon nanotube hybrid materials. The visible absorption spectroscopic study shows that curved carbon nanotube surfaces can induce the planarization of individual conjugated polymers such as poly(p-phenyleneethynylene)s and poly(3-alkylthiophene)s in solution. The impact of nanotube surface quality on the interaction between carbon nanotubes and conjugated polymers is investigated.

Anthracene-containing conjugated polymer showing four optical transitions upon doping: A spectroscopic study

2013 ◽  
Vol 52 (4) ◽  
pp. 338-346 ◽  
Author(s):  
Jacek Gasiorowski ◽  
Sameh Boudiba ◽  
Kurt Hingerl ◽  
Christoph Ulbricht ◽  
Valeria Fattori ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Conjugated Polymer ◽  
Optical Transitions

1H NMR Spectroscopic Study of the Solution Structure of a Conjugated Polymer

2010 ◽  
Vol 57 (3B) ◽  
pp. 490-495 ◽  
Author(s):  
M. Habibur Rahman ◽  
Hsin-Lung Chen ◽  
Show-An Chen ◽  
Peter P. J. Chu
Keyword(s):  
Spectroscopic Study ◽  
1H Nmr ◽  
Conjugated Polymer ◽  
Solution Structure

scholarly journals The role of chain conformation in energy transfer properties of single conjugated polymer molecule

2017 ◽  
Vol 66 (24) ◽  
pp. 248201
Author(s):  
Qin Ya-Qiang ◽  
Chen Rui-Yun ◽  
Shi Ying ◽  
Zhou Hai-Tao ◽  
Zhang Guo-Feng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Conjugated Polymer ◽  
Chain Conformation ◽  
Polymer Molecule ◽  
Transfer Properties
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