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Abstract
We study phase behaviors in compressible polymer blends by using an equation of state in the framework of classical density-functional theory. The phase behaviors are explored by decomposing the compressible mixing of polymers into two steps: incompressible mixing as holding the volume and density relaxation at the given pressure. There exists both upper consolute pressure (UCP) and lower consolute pressure (LCP). LCP-type behaviors are driven by the entropy effect of asymmetric size of molecules, while UCP-type behaviors are driven by energetic interactions. The value of LCP follows a scaling of O(N-2), which can be improved to O(N-1.8) by taking into account the effects of random chain conformation. The volume of LCP-type polymers expands upon mixing, while that of UCP-type polymers contracts. A closed-loop phase coexisting curve may appear because of the interplay between UCP- and LCP-type behaviors. At the UCP/LCP boundary, the mixing free energy of density relaxation is much smaller than that of both UCP- and LCP-type behaviors. The contribution from incompressible mixing step always dominates the phase behaviors, while that from density relaxation step could distinguish UCP-type between LCP-type behaviors.
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Affiliation(s)
- Xiaofei Xu
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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Zhao Y, Zhou J, Lei F, Xu H, Lu J, Huang Z, Huang Q, Li P. Temperature induced multiple structure transformation and aggregation behaviors of amphiphilic acrylicpimaric acid polyglycol ester in water. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Lee Y, Lee H, Kim SW, Park S, Kim E, Han YS, Ryu DY. Baroplastic behavior of miscible block copolymer blends. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Affiliation(s)
- Junhan Cho
- Department of Polymer Science and Engineering; Center for Photofunctional Energy Materials; Dankook University; 152 Jukjeon-ro, Suji-Gu Yongin-Si Gyeonggi-Do 448-701 Korea
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Lee DH, Lee H, Lee Y, Kim Y, Ryu DY. Enthalpic and Volumetric Changes at Phase Transitions of Polystyrene-b-poly(alkyl methacrylate) Copolymers and Their Pressure Dependence. Macromolecules 2014. [DOI: 10.1021/ma402535w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong Hyun Lee
- Department
of Polymer Science and Engineering, Dankook University, Yongin, Gyeonggi-do 448-701, Korea
| | - Hoyeon Lee
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
| | - Yonghoon Lee
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
| | - Yoonkeun Kim
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
| | - Du Yeol Ryu
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
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Ahn H, Lee Y, Lee H, Han YS, Seong BS, Ryu DY. Various Phase Behaviors of Weakly Interacting Binary Block Copolymer Blends. Macromolecules 2013. [DOI: 10.1021/ma302514s] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hyungju Ahn
- Department of Chemical and Biomolecular
Engineering, Yonsei University, Seoul 120-749,
Korea
| | - Yonghoon Lee
- Department of Chemical and Biomolecular
Engineering, Yonsei University, Seoul 120-749,
Korea
| | - Hoyeon Lee
- Department of Chemical and Biomolecular
Engineering, Yonsei University, Seoul 120-749,
Korea
| | - Young Soo Han
- Neutron Science Division,
Research Reactor Utilization Department, Korea Atomic Energy Research Institute, Daejeon 305-353, Korea
| | - Baek Seok Seong
- Neutron Science Division,
Research Reactor Utilization Department, Korea Atomic Energy Research Institute, Daejeon 305-353, Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular
Engineering, Yonsei University, Seoul 120-749,
Korea
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Kim HJ, Moon HC, Kim H, Kim K, Kim JK, Cho J. Pressure Effect of Various Inert Gases on the phase Behavior of Polystyrene-block-Poly(n-pentyl methacrylate) Copolymer. Macromolecules 2013. [DOI: 10.1021/ma302155j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hye Jeong Kim
- National
Creative Research Center for Block Copolymer Self-Assembly, Department
of Chemical Engineering and §Department of Chemistry, Pohang University of Science and Technology, Pohang,
Kyungbuk 790-784, Republic of Korea
| | - Hong Chul Moon
- National
Creative Research Center for Block Copolymer Self-Assembly, Department
of Chemical Engineering and §Department of Chemistry, Pohang University of Science and Technology, Pohang,
Kyungbuk 790-784, Republic of Korea
| | - Hyunuk Kim
- National
Creative Research Center for Block Copolymer Self-Assembly, Department
of Chemical Engineering and §Department of Chemistry, Pohang University of Science and Technology, Pohang,
Kyungbuk 790-784, Republic of Korea
| | - Kimoon Kim
- National
Creative Research Center for Block Copolymer Self-Assembly, Department
of Chemical Engineering and §Department of Chemistry, Pohang University of Science and Technology, Pohang,
Kyungbuk 790-784, Republic of Korea
| | - Jin Kon Kim
- National
Creative Research Center for Block Copolymer Self-Assembly, Department
of Chemical Engineering and §Department of Chemistry, Pohang University of Science and Technology, Pohang,
Kyungbuk 790-784, Republic of Korea
| | - Junhan Cho
- Department of Polymer Science
and Engineering and Center
for Photofunctional Energy Materials, Dankook University, 126 Jukjeon-dong, Yongin-si, Gyeonggi-do 448-701, Korea
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Cho J. Hartree analysis of χ for a pressure-responsive diblock copolymer: Temperature-pressure superposition. Macromol Res 2012. [DOI: 10.1007/s13233-012-0139-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Anomaly in SANS χ for polydisperse polystyrene-b-poly(isooctyl acrylate). POLYMER 2012. [DOI: 10.1016/j.polymer.2012.03.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lee J, Ryu DY, Cho J. Temperature−Pressure Superposition in SANS χ for an A-b-B Diblock Copolymer. Macromolecules 2011. [DOI: 10.1021/ma102102x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jumi Lee
- Department of Polymer Science & Engineering and Center for Photofunctional Energy Materials, Dankook University, 126 Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular Engineering, Yonsei University, 262 Seongsan-no, Seodaemun-gu, Seoul 120-749 Korea
| | - Junhan Cho
- Department of Polymer Science & Engineering and Center for Photofunctional Energy Materials, Dankook University, 126 Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea
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Chen W, Wei X, Balazs AC, Matyjaszewski K, Russell TP. Phase Behavior and Photoresponse of Azobenzene-Containing Polystyrene-block-poly(n-butyl methacrylate) Block Copolymers. Macromolecules 2011. [DOI: 10.1021/ma101982u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Chen
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Xinyu Wei
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Anna C. Balazs
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Thomas P. Russell
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
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Lee J, Cho J. Driving force for phase segregation in polymer mixtures. Macromol Res 2011. [DOI: 10.1007/s13233-011-0204-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Chen W, Wang JY, Wei X, Xu J, Balazs AC, Matyjaszewski K, Russell TP. UV-enhanced Ordering in Azobenzene-Containing Polystyrene-block-Poly(n-Butyl Methacrylate) Copolymer Blends. Macromolecules 2010. [DOI: 10.1021/ma102005s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Chen
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Jia-Yu Wang
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Xinyu Wei
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Ji Xu
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Anna C. Balazs
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Thomas P. Russell
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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Ahn H, Ryu DY, Kim Y, Kwon KW, Lee J, Cho J. Phase Behavior of Polystyrene-b-poly(methyl methacrylate) Diblock Copolymer. Macromolecules 2009. [DOI: 10.1021/ma901313a] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hyungju Ahn
- Department of Chemical and Biomolecular Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea
| | - Youngmin Kim
- Department of Electrical Engineering, Hongik University, 72-1 Sangsoo-dong, Mapo-gu, Seoul 121-791, Korea
| | - Kyung Wook Kwon
- Department of Polymer Science and Engineering, and Center for Photofunctional Energy Materials, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea
| | - Jumi Lee
- Department of Polymer Science and Engineering, and Center for Photofunctional Energy Materials, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea
| | - Junhan Cho
- Department of Polymer Science and Engineering, and Center for Photofunctional Energy Materials, Dankook University, 126, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea
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Song KH, Kwon KW, Cho J. Determining basic thermodynamic properties for some poly(n-alkyl methacrylates). Macromol Res 2009. [DOI: 10.1007/bf03218935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Moon HC, Han SH, Kim JK, Cho J. Tuning the Phase Behavior of Polystyrene-block-poly(n-alkyl methacrylate) Copolymers by Introducing Random Copolymer for Methacrylate Block. Macromolecules 2009. [DOI: 10.1021/ma9007016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hong Chul Moon
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Sung Hyun Han
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Jin Kon Kim
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Junhan Cho
- Department of Polymer Science and Engineering and Center for Photofunctinal Energy Materials, Dankook University, 126 Jukjeon-dong, Yongin-si, Gyeonggi-do 448-701, Korea
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Ahn H, Naidu S, Ryu DY, Cho J. Phase Behavior of a Weakly Interacting Polystyrene and Poly(n-hexyl methacrylate) System: Evidence for the Coexistence of UCST and LCST. Macromol Rapid Commun 2009; 30:469-74. [DOI: 10.1002/marc.200800646] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 11/25/2008] [Accepted: 11/27/2008] [Indexed: 11/12/2022]
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20
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Kim E, Ahn H, Ryu DY, Joo W, Kim JK, Jung J, Chang T. Closed-Loop Transition Induced by Homopolymers. Macromolecules 2008. [DOI: 10.1021/ma801530f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eunhye Kim
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Gyeongpuk 790-784, Korea, and Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Gyeongpuk 790-784, Korea
| | - Hyungju Ahn
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Gyeongpuk 790-784, Korea, and Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Gyeongpuk 790-784, Korea
| | - Du Yeol Ryu
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Gyeongpuk 790-784, Korea, and Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Gyeongpuk 790-784, Korea
| | - Wonchul Joo
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Gyeongpuk 790-784, Korea, and Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Gyeongpuk 790-784, Korea
| | - Jin Kon Kim
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Gyeongpuk 790-784, Korea, and Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Gyeongpuk 790-784, Korea
| | - Jueun Jung
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Gyeongpuk 790-784, Korea, and Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Gyeongpuk 790-784, Korea
| | - Taihyun Chang
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea, National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Gyeongpuk 790-784, Korea, and Department of Chemistry and Polymer Research Institute, Pohang University of Science and Technology, Gyeongpuk 790-784, Korea
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Kim HJ, Kim SB, Kim JK, Jung YM. Hydrostatic Pressure Effect on the Phase Transitions of a Closed-Loop Type Block Copolymer by Using 2D FTIR Correlation Spectroscopy. J Phys Chem B 2008; 112:15295-300. [DOI: 10.1021/jp806019n] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hye Jeong Kim
- National Creative Research Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Department of Chemistry, Pohang University of Science and Technology, Kyungbuk 790-784, Korea, and Department of Chemistry, Kangwon National University, Chunchon 200-701, Korea
| | - Seung Bin Kim
- National Creative Research Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Department of Chemistry, Pohang University of Science and Technology, Kyungbuk 790-784, Korea, and Department of Chemistry, Kangwon National University, Chunchon 200-701, Korea
| | - Jin Kon Kim
- National Creative Research Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Department of Chemistry, Pohang University of Science and Technology, Kyungbuk 790-784, Korea, and Department of Chemistry, Kangwon National University, Chunchon 200-701, Korea
| | - Young Mee Jung
- National Creative Research Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Department of Chemistry, Pohang University of Science and Technology, Kyungbuk 790-784, Korea, and Department of Chemistry, Kangwon National University, Chunchon 200-701, Korea
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22
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Moon HC, Han SH, Kim JK, Li GH, Cho J. Phase Behavior of Polystyrene-block-Poly(n-butyl-ran-n-hexyl) Methacrylate Copolymers. Macromolecules 2008. [DOI: 10.1021/ma800645u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hong Chul Moon
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Sung Hyun Han
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Jin Kon Kim
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Republic of Korea
| | - Guang Hua Li
- School of Chemistry & Chemical Engineering, Guangxi University, No. 100 Daxue Road, Nanning, Guangxi 530-004, China
| | - Junhan Cho
- Department of Polymer Science and Engineering, and Center for Photofunctional Energy Materials, Dankook University, Hyperstructured Organic Materials Research Center, Yongin-si, Gyeonggi-do 448-701, Korea
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García-Lopera R, Monzó IS, Campos A, Abad C. Modelling the hydrogen-bonding interactions in a copolymer/biodegradable homopolymer blend through excess functions. Macromol Res 2008. [DOI: 10.1007/bf03218544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cho J, Shin K, Cho KS, Seo YS, Satija SK, Ryu DY, Kim JK. Phase Coherence upon Heating in Diblock Copolymer Films. Macromolecules 2008. [DOI: 10.1021/ma071604r] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Cho
- Department of Polymer Science and Engineering, Dankook University and Hyperstructured Organic Materials Research Center, San 44-1, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea, Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Sinsu-dong, Mapo-gu, Seoul 121-742, Korea, Department of Polymer Science and Engineering, Kyungpook National University, 1370, Sangyuk-dong, Bukgu, Daeku 702-701, Korea, Department of Nano Science and Technology, Sejong University,
| | - K. Shin
- Department of Polymer Science and Engineering, Dankook University and Hyperstructured Organic Materials Research Center, San 44-1, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea, Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Sinsu-dong, Mapo-gu, Seoul 121-742, Korea, Department of Polymer Science and Engineering, Kyungpook National University, 1370, Sangyuk-dong, Bukgu, Daeku 702-701, Korea, Department of Nano Science and Technology, Sejong University,
| | - K. S. Cho
- Department of Polymer Science and Engineering, Dankook University and Hyperstructured Organic Materials Research Center, San 44-1, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea, Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Sinsu-dong, Mapo-gu, Seoul 121-742, Korea, Department of Polymer Science and Engineering, Kyungpook National University, 1370, Sangyuk-dong, Bukgu, Daeku 702-701, Korea, Department of Nano Science and Technology, Sejong University,
| | - Y.-S. Seo
- Department of Polymer Science and Engineering, Dankook University and Hyperstructured Organic Materials Research Center, San 44-1, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea, Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Sinsu-dong, Mapo-gu, Seoul 121-742, Korea, Department of Polymer Science and Engineering, Kyungpook National University, 1370, Sangyuk-dong, Bukgu, Daeku 702-701, Korea, Department of Nano Science and Technology, Sejong University,
| | - S. K. Satija
- Department of Polymer Science and Engineering, Dankook University and Hyperstructured Organic Materials Research Center, San 44-1, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea, Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Sinsu-dong, Mapo-gu, Seoul 121-742, Korea, Department of Polymer Science and Engineering, Kyungpook National University, 1370, Sangyuk-dong, Bukgu, Daeku 702-701, Korea, Department of Nano Science and Technology, Sejong University,
| | - D. Y. Ryu
- Department of Polymer Science and Engineering, Dankook University and Hyperstructured Organic Materials Research Center, San 44-1, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea, Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Sinsu-dong, Mapo-gu, Seoul 121-742, Korea, Department of Polymer Science and Engineering, Kyungpook National University, 1370, Sangyuk-dong, Bukgu, Daeku 702-701, Korea, Department of Nano Science and Technology, Sejong University,
| | - J. K. Kim
- Department of Polymer Science and Engineering, Dankook University and Hyperstructured Organic Materials Research Center, San 44-1, Jukjeon-dong, Suji-gu, Yongin-si, Gyeonggi-do 448-701, Korea, Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Sinsu-dong, Mapo-gu, Seoul 121-742, Korea, Department of Polymer Science and Engineering, Kyungpook National University, 1370, Sangyuk-dong, Bukgu, Daeku 702-701, Korea, Department of Nano Science and Technology, Sejong University,
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Li C, Li GH, Moon HC, Lee DH, Kim JK, Cho J. Effect of neutral solvent on the phase behavior of polystyrene-block-poly(n-butyl methacrylate) copolymers. Macromol Res 2007. [DOI: 10.1007/bf03218946] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Hwang SW, Kim E, Shin C, Kim JH, Ryu DY, Park S, Chang T, Kim JK. Unusual Sensitivity of Closed-Loop Phase Behavior to Chain Size and Distribution. Macromolecules 2007. [DOI: 10.1021/ma071314a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Jin Kon Kim
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Gyeongbuk 790-784, Korea
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28
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Ryu DY, Shin C, Cho J, Lee DH, Kim JK, Lavery KA, Russell TP. Effective Interaction Parameter for Homologous Series of Deuterated Polystyrene-block-Poly(n-alkyl methacrylate) Copolymers. Macromolecules 2007. [DOI: 10.1021/ma070754z] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Du Yeol Ryu
- Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea, Department of Polymer Science & Engineering, and Hyperstuructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul 140-714, Korea, National Creative Research Initiative Center for Block Copolymer Self Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Kyungbuk, 790-784, Korea, and
| | - Changhak Shin
- Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea, Department of Polymer Science & Engineering, and Hyperstuructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul 140-714, Korea, National Creative Research Initiative Center for Block Copolymer Self Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Kyungbuk, 790-784, Korea, and
| | - Junhan Cho
- Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea, Department of Polymer Science & Engineering, and Hyperstuructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul 140-714, Korea, National Creative Research Initiative Center for Block Copolymer Self Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Kyungbuk, 790-784, Korea, and
| | - Dong Hyun Lee
- Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea, Department of Polymer Science & Engineering, and Hyperstuructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul 140-714, Korea, National Creative Research Initiative Center for Block Copolymer Self Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Kyungbuk, 790-784, Korea, and
| | - Jin Kon Kim
- Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea, Department of Polymer Science & Engineering, and Hyperstuructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul 140-714, Korea, National Creative Research Initiative Center for Block Copolymer Self Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Kyungbuk, 790-784, Korea, and
| | - Kristopher A. Lavery
- Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea, Department of Polymer Science & Engineering, and Hyperstuructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul 140-714, Korea, National Creative Research Initiative Center for Block Copolymer Self Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Kyungbuk, 790-784, Korea, and
| | - Thomas P. Russell
- Department of Chemical Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul 120-749, Korea, Department of Polymer Science & Engineering, and Hyperstuructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul 140-714, Korea, National Creative Research Initiative Center for Block Copolymer Self Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Kyungbuk, 790-784, Korea, and
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29
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Li C, Kim EY, Li GH, Lee DH, Kim JK. Effect of solvents on closed-loop phase behavior of block copolymers. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Effective Flory interaction parameter and disparity in equation-of-state properties for block copolymers. POLYMER 2007. [DOI: 10.1016/j.polymer.2006.11.056] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kim EY, Lee DJ, Kim JK, Cho J. Phase Behavior of a Binary Mixture of a Block Copolymer with Lower Disorder-to-Order Transition and a Homopolymer. Macromolecules 2006. [DOI: 10.1021/ma0617567] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eun Young Kim
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science & Technology, Kyungbuk 790-784, Korea
| | - Dong Jun Lee
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science & Technology, Kyungbuk 790-784, Korea
| | - Jin Kon Kim
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science & Technology, Kyungbuk 790-784, Korea
| | - Junhan Cho
- Department of Polymer Science and Engineering, Dankook University, Hyperstructured Organic Materials Research Center, Seoul 140-714, Korea
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32
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Kim HJ, Kim SB, Kim JK, Jung YM. Two-Dimensional Heterospectral Correlation Analysis of Wide-Angle X-ray Scattering and Infrared Spectroscopy for Specific Chemical Interactions in Weakly Interacting Block Copolymers. J Phys Chem B 2006; 110:23123-9. [PMID: 17107153 DOI: 10.1021/jp0638282] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We investigated, via two-dimensional heterospectral correlation analysis of wide-angle X-ray scattering (WAXS) and infrared (IR) spectroscopy, the specific chemical interactions existing in weakly interacting polystyrene-block-poly(n-pentyl methacrylate) copolymers (PS-PnPMA). PS-PnPMA was shown to exhibit a closed-loop-type phase behavior, where, upon heating, a lower disorder-to-order transition (LDOT) was found at lower temperatures, and an upper order-to-disorder transition (UODT) was observed at higher temperatures. The specific interaction between the PS and PnPMA blocks mainly arises from the dipole in the benzene ring of PS and the induced dipole in the PnPMA due to cluster formation with a size of 1 approximately 2 nm. We found that the synchronous 2D WAXS-IR heterospectral correlation spectrum of the ordered state was completely different from that in the two disordered states. The CH group of the main chains of PS and PnPMA did not contribute to the cluster formation in the two disordered states, indicating that the main chains of PS and PnPMA blocks were randomly distributed in the two disordered states. However, only the C=C group in the PS block contributed to the cluster at a disordered state below the LDOT, whereas both the C-C-O group in PnPMA and the entire phenyl ring and C=C group in PS contributed to cluster formation at another disordered state above the UODT. Thus, the probability that PS (and PnPMA) chains were located at their own neighboring chains at one disordered state above the UODT is larger than that at another disordered state below the LDOT.
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Affiliation(s)
- Hye Jeong Kim
- National Creative Research Center for Block Copolymer Self-Assembly, and Departments of Chemical Engineering and Chemistry, Pohang University of Science and Technology, Kyungbuk 790-784, Korea
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33
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Li C, Lee DH, Kim JK, Ryu DY, Russell TP. Closed-Loop Phase Behavior for Weakly Interacting Block Copolymers. Macromolecules 2006. [DOI: 10.1021/ma0610055] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chaoxu Li
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Korea
| | - Dong Hyun Lee
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Korea
| | - Jin Kon Kim
- National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, Pohang, Kyungbuk 790-784, Korea
| | - Du Yeol Ryu
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea
| | - Thomas P. Russell
- Silvio O. Conte National Center for Polymer Research, Polymer Science and Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003
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34
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Cho J, Wang ZG. A Simple Field-Theoretic Simulation Method for Compressible Block Copolymer Systems. Macromolecules 2006. [DOI: 10.1021/ma052565r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Junhan Cho
- Department of Polymer Science and Engineering, and Hyperstructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul, 140-714, Korea, and Department of Chemical Engineering, California Institute of Technology, Pasadena, California 91125
| | - Zhen-Gang Wang
- Department of Polymer Science and Engineering, and Hyperstructured Organic Materials Research Center, Dankook University, San-8, Hannam-dong, Yongsan-gu, Seoul, 140-714, Korea, and Department of Chemical Engineering, California Institute of Technology, Pasadena, California 91125
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35
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Kim HJ, Kim SB, Kim JK, Jung YM, Ryu DY, Lavery KA, Russell TP. Phase Behavior of a Weakly Interacting Block Copolymer by Temperature-Dependent FTIR Spectroscopy. Macromolecules 2005. [DOI: 10.1021/ma052259d] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Young Mee Jung
- Department of Chemistry, Kangwon National University, Chunchon 200-701, Korea
| | - Du Yeol Ryu
- Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea
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