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Title: Thermoreversible Morphology and Conductivity of a Conjugated Polymer Network Embedded in Block Copolymer Self-Assemblies

Self-assembly of block copolymers provides numerous opportunities to create functional materials, utilizing self-assembled microdomains with a variety of morphology and periodic architectures as templates for functional nanofillers. Here new progress is reported toward the fabrication of thermally responsive and electrically conductive polymeric self-assemblies made from a water-soluble poly(thiophene) derivative with short poly(ethylene oxide) side chains and Pluronic L62 block copolymer solution in water. The structural and electrical properties of conjugated polymer-embedded self-assembled architectures are investigated by combining small-angle neutron and X-ray scattering, coarse-grained molecular dynamics simulations, and impedance spectroscopy. The L62 solution template organizes the conjugated polymers by stably incorporating them into the hydrophilic domains thus inhibiting aggregation. The changing morphology of L62 during the micellarto- lamellar phase transition defines the embedded conjugated polymer network. As a result, the conductivity is strongly coupled to the structural change of the templating L62 phase and exhibits thermally reversible behavior with no signs of quenching of the conductivity at high temperature. In conclusion, this study shows promise for enabling more flexibility in processing and utilizing water-soluble conjugated polymers in aqueous solutions for self-assembly based fabrication of stimuli-responsive nanostructures and sensory materials.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [2] ;  [6] ;  [4] ;  [1] ;  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biology and Soft Matter Division, Neutron Sciences Directorate
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Computer Science and Mathematics Division
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biology and Soft Matter Division, Neutron Sciences Directorate; Forschungszentrum Julich (Germany). Julich Center for Neutron Science (JCNS)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  6. Forschungszentrum Julich (Germany). Julich Center for Neutron Science (JCNS)
Publication Date:
Grant/Contract Number:
AC05-00OR22725; -AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Small
Additional Journal Information:
Journal Volume: 12; Journal Issue: 35; Journal ID: ISSN 1613-6810
Publisher:
Wiley
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; conjugated polymers; self-assembly; small-angle scattering; thermoreversible conductivity; triblock copolymers
OSTI Identifier:
1327591

Han, Youngkyu, Carrillo, Jan-Michael Y., Zhang, Zhe, Li, Yunchao, Hong, Kunlun, Sumpter, Bobby G., Ohl, Michael, Paranthaman, Mariappan Parans, Smith, Gregory S., and Do, Changwoo. Thermoreversible Morphology and Conductivity of a Conjugated Polymer Network Embedded in Block Copolymer Self-Assemblies. United States: N. p., Web. doi:10.1002/smll.201601342.
Han, Youngkyu, Carrillo, Jan-Michael Y., Zhang, Zhe, Li, Yunchao, Hong, Kunlun, Sumpter, Bobby G., Ohl, Michael, Paranthaman, Mariappan Parans, Smith, Gregory S., & Do, Changwoo. Thermoreversible Morphology and Conductivity of a Conjugated Polymer Network Embedded in Block Copolymer Self-Assemblies. United States. doi:10.1002/smll.201601342.
Han, Youngkyu, Carrillo, Jan-Michael Y., Zhang, Zhe, Li, Yunchao, Hong, Kunlun, Sumpter, Bobby G., Ohl, Michael, Paranthaman, Mariappan Parans, Smith, Gregory S., and Do, Changwoo. 2016. "Thermoreversible Morphology and Conductivity of a Conjugated Polymer Network Embedded in Block Copolymer Self-Assemblies". United States. doi:10.1002/smll.201601342. https://www.osti.gov/servlets/purl/1327591.
@article{osti_1327591,
title = {Thermoreversible Morphology and Conductivity of a Conjugated Polymer Network Embedded in Block Copolymer Self-Assemblies},
author = {Han, Youngkyu and Carrillo, Jan-Michael Y. and Zhang, Zhe and Li, Yunchao and Hong, Kunlun and Sumpter, Bobby G. and Ohl, Michael and Paranthaman, Mariappan Parans and Smith, Gregory S. and Do, Changwoo},
abstractNote = {Self-assembly of block copolymers provides numerous opportunities to create functional materials, utilizing self-assembled microdomains with a variety of morphology and periodic architectures as templates for functional nanofillers. Here new progress is reported toward the fabrication of thermally responsive and electrically conductive polymeric self-assemblies made from a water-soluble poly(thiophene) derivative with short poly(ethylene oxide) side chains and Pluronic L62 block copolymer solution in water. The structural and electrical properties of conjugated polymer-embedded self-assembled architectures are investigated by combining small-angle neutron and X-ray scattering, coarse-grained molecular dynamics simulations, and impedance spectroscopy. The L62 solution template organizes the conjugated polymers by stably incorporating them into the hydrophilic domains thus inhibiting aggregation. The changing morphology of L62 during the micellarto- lamellar phase transition defines the embedded conjugated polymer network. As a result, the conductivity is strongly coupled to the structural change of the templating L62 phase and exhibits thermally reversible behavior with no signs of quenching of the conductivity at high temperature. In conclusion, this study shows promise for enabling more flexibility in processing and utilizing water-soluble conjugated polymers in aqueous solutions for self-assembly based fabrication of stimuli-responsive nanostructures and sensory materials.},
doi = {10.1002/smll.201601342},
journal = {Small},
number = 35,
volume = 12,
place = {United States},
year = {2016},
month = {7}
}

Works referenced in this record:

Conjugated Polymer-Based Organic Solar Cells
journal, April 2007
  • Günes, Serap; Neugebauer, Helmut; Sariciftci, Niyazi Serdar
  • Chemical Reviews, Vol. 107, Issue 4, p. 1324-1338
  • DOI: 10.1021/cr050149z

A Route to Nanoscopic Materials via Sequential Infiltration Synthesis on Block Copolymer Templates
journal, May 2011
  • Peng, Qing; Tseng, Yu-Chih; Darling, Seth B.
  • ACS Nano, Vol. 5, Issue 6, p. 4600-4606
  • DOI: 10.1021/nn2003234

Block copolymer patterns and templates
journal, September 2006

Enabling nanotechnology with self assembled block copolymer patterns
journal, October 2003

Nanoscopic Patterned Materials with Tunable Dimensions via Atomic Layer Deposition on Block Copolymers
journal, September 2010
  • Peng, Qing; Tseng, Yu-Chih; Darling, Seth B.
  • Advanced Materials, Vol. 22, Issue 45, p. 5129-5133
  • DOI: 10.1002/adma.201002465