Evaluation of molecular volume change of block copolymer depending on temperature: A SANS study

Kim, Tae-Hwan; Do, Changwoo; Han, Young-Soo

doi:10.1016/j.physb.2017.12.059

Title: Evaluation of molecular volume change of block copolymer depending on temperature: A SANS study

Journal Article · Sun Dec 24 00:00:00 EST 2017 · Physica. B, Condensed Matter

DOI:https://doi.org/10.1016/j.physb.2017.12.059· OSTI ID:1422542

Kim, Tae-Hwan ^[1];

^[2]; Han, Young-Soo ^[3]

Chonbuk National Univ., Jeonju (Korea, Republic of). Dept. of Quantum System Engineering; Korea Atomic Energy Research Inst., Yuseong-gu, Daejeon (Korea, Republic of). Neutron Science Division, Research Reactor Utilization Dept.
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biology and Soft Matter Division
Korea Atomic Energy Research Inst., Yuseong-gu, Daejeon (Korea, Republic of). Neutron Science Division, Research Reactor Utilization Dept.

Amphiphilic Pluronic triblock copolymers form various self-assembled structures such as sphere, cylinder, lamellae and so on, depending on temperature, leading to the increase of hydrophobicity of block copolymers. However, the effective molecular volume change of the block copolymer has not been fully exploited yet, when temperature increases. Here in this paper, we have investigated the effective molecular volume change of the block copolymer upon heating by using the contrast variation small angle neutron scattering. The scattering length densities (SLDs) of the block copolymer were experimentally obtained from the neutron scattering contrast variation method between the solvent and the block copolymer at varying temperature. Even though the SLD, which is the intrinsic property of the material, should not be changed by temperature elevation, it was dependent on temperature, indicating that the molecular volume is changed. Therefore, we obtained the increase rate of the molecular volume change of the block copolymer (the effective molecular volume change) from the comparison of the calculated SLD and the standard SLD, which is evaluated by plotting the SANS intensity at the first order Bragg peak as the function of temperature at each volume fraction of D₂O and H₂O that is about 25.5%–51.3% depending on temperature.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Research Foundation of Korea (NRF); Chonbuk National University; Ministry of Education

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1422542

Journal Information:: Physica. B, Condensed Matter, Vol. 551; ISSN 0921-4526

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (15)

Self-Assembling Behavior of Amphiphilic Dendron Coils in the Bulk Crystalline and Liquid Crystalline States Chung, Yeon-Wook; Lee, Jeong-Kyu; Zin, Wang-Cheol Journal of the American Chemical Society, Vol. 130, Issue 22 https://doi.org/10.1021/ja801163m	journal	May 2008
Self-Assembly of Hyperbranched Polymers and Its Biomedical Applications Zhou, Yongfeng; Huang, Wei; Liu, Jinyao Advanced Materials, Vol. 22, Issue 41 https://doi.org/10.1002/adma.201000369	journal	September 2010
Epitaxial self-assembly of block copolymers on lithographically defined nanopatterned substrates Ouk Kim, Sang; Solak, Harun H.; Stoykovich, Mark P. Nature, Vol. 424, Issue 6947, p. 411-414 https://doi.org/10.1038/nature01775	journal	July 2003
Block Copolymer Self-Assembly–Directed Single-Crystal Homo- and Heteroepitaxial Nanostructures Arora, Hitesh; Du, Phong; Tan, Kwan W. Science, Vol. 330, Issue 6001, p. 214-219 https://doi.org/10.1126/science.1193369	journal	October 2010
Directing the self-assembly of block copolymers Darling, S. B. Progress in Polymer Science, Vol. 32, Issue 10 https://doi.org/10.1016/j.progpolymsci.2007.05.004	journal	October 2007
Nanostructure engineering by templated self-assembly of block copolymers Cheng, Joy Y.; Mayes, Anne M.; Ross, Caroline A. Nature Materials, Vol. 3, Issue 11 https://doi.org/10.1038/nmat1211	journal	October 2004
Templated Self-Assembly of Block Copolymers: Top-Down Helps Bottom-Up Cheng, J. Y.; Ross, C. A.; Smith, H. I. Advanced Materials, Vol. 18, Issue 19, p. 2505-2521 https://doi.org/10.1002/adma.200502651	journal	October 2006
Block Copolymer Assembly via Kinetic Control Cui, H.; Chen, Z.; Zhong, S. Science, Vol. 317, Issue 5838 https://doi.org/10.1126/science.1141768	journal	August 2007
Self-assembly of block copolymers Mai, Yiyong; Eisenberg, Adi Chemical Society Reviews, Vol. 41, Issue 18 https://doi.org/10.1039/c2cs35115c	journal	January 2012
The extended Q -range small-angle neutron scattering diffractometer at the SNS Zhao, J. K.; Gao, C. Y.; Liu, D. Journal of Applied Crystallography, Vol. 43, Issue 5 https://doi.org/10.1107/S002188981002217X	journal	July 2010
Mantid—Data analysis and visualization package for neutron scattering and $μ$ SR experiments Arnold, O.; Bilheux, J. C.; Borreguero, J. M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 764 https://doi.org/10.1016/j.nima.2014.07.029	journal	November 2014
Spontaneous unilamellar polymer vesicles in aqueous solution Kim, Tae-Hwan; Song, Chaeyeon; Han, Young-Soo Soft Matter, Vol. 10, Issue 3 https://doi.org/10.1039/C3SM52519H	journal	January 2014
Small-Angle Neutron Scattering Study of Solubilization of Tributyl Phosphate in Aqueous Solutions of L64 Pluronic Triblock Copolymers Causse, J.; Oberdisse, J.; Jestin, J. Langmuir, Vol. 26, Issue 20 https://doi.org/10.1021/la1021164	journal	October 2010
Small-Angle Neutron Scattering and Theoretical Investigation of Poly(ethylene oxide)−Poly(propylene oxide)−Poly(ethylene oxide) Stabilized Oil-in-Water Microemulsions Lettow, John S.; Lancaster, Thomas M.; Glinka, Charles J. Langmuir, Vol. 21, Issue 13 https://doi.org/10.1021/la046918b	journal	June 2005
Anomalistic Self-Assembled Phase Behavior of Block Copolymer Blended with Organic Derivative Depending on Temperature Kim, Tae-Hwan; Kim, Eunhye; Do, Changwoo Macromolecules, Vol. 49, Issue 17 https://doi.org/10.1021/acs.macromol.6b00690	journal	August 2016

Cited By (1)

Unexpected Phase Behavior of Pluronic Polymer-Organic Derivative Mixtures Depending on Temperature in Aqueous Solution Jang, Jong-Dae; Kim, Eunhye; Lee, Min-Jae Micromachines, Vol. 9, Issue 10 https://doi.org/10.3390/mi9100505	journal	October 2018

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36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Small angle neutron scattering (SANS)
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Phase behavior
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Title: Evaluation of molecular volume change of block copolymer depending on temperature: A SANS study

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