TY - JOUR
T1 - Rod-like transition first or chain aggregation first? ordered aggregation of rod-like poly(
T2 - P-phenyleneethynylene) chains in solution
AU - Hattori, Yusuke
AU - Nishimura, Nozomi
AU - Tsutsui, Yusuke
AU - Ghosh, Samrat
AU - Sakurai, Tsuneaki
AU - Sugiyasu, Kazunori
AU - Takeuchi, Masayuki
AU - Seki, Shu
N1 - Funding Information:
This work was partly supported by a Grant-in-Aid for Scientific Research (no. 18J23477, 16J10857, 17H04880, 18H03918, 19F19044, 19K23651, and 19H02813) from the Japan Society for the Promotion of Science (JSPS), and a research grant from the Iketani Science and Technology Foundation. Y. H., Y. T. and S. G. thank JSPS for fellowships.
Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2019
Y1 - 2019
N2 - The rod-like configuration of conjugated polymer chains with its low energetic disorder is the key to utilizing the backbone as a highly electrically-conductive wire. An energetic disorder that is higher than 0.1 eV, coupled with vibronic modes of the chains, leads to the localization of charges. Herein, we have tracked precisely the rod-like transition of poly(p-phenyleneethynylene) (PPE) chains as a function of temperature in diluted solutions, and shown a steep increase in persistence length at 230 K. The resulting rod-like configuration of the PPE chains with its extended electronic conjugation exhibited an extremely small energetic disorder of ∼70 meV, and was stabilized by subsequent polymer aggregate formation.
AB - The rod-like configuration of conjugated polymer chains with its low energetic disorder is the key to utilizing the backbone as a highly electrically-conductive wire. An energetic disorder that is higher than 0.1 eV, coupled with vibronic modes of the chains, leads to the localization of charges. Herein, we have tracked precisely the rod-like transition of poly(p-phenyleneethynylene) (PPE) chains as a function of temperature in diluted solutions, and shown a steep increase in persistence length at 230 K. The resulting rod-like configuration of the PPE chains with its extended electronic conjugation exhibited an extremely small energetic disorder of ∼70 meV, and was stabilized by subsequent polymer aggregate formation.
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U2 - 10.1039/c9cc06892a
DO - 10.1039/c9cc06892a
M3 - Article
C2 - 31626266
AN - SCOPUS:85074553070
VL - 55
SP - 13342
EP - 13345
JO - Chemical Communications
JF - Chemical Communications
SN - 1359-7345
IS - 89
ER -