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Uddin MA, Yu H, Wang L, Naveed K, Haq F, Amin BU, Mehmood S, Nazir A, Xing Y, Shen D. Recent progress in
EPR
study of spin labeled polymers and spin probed polymer systems. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200039] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Md Alim Uddin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Li Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Kaleem‐ur‐Rahman Naveed
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Fazal Haq
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Bilal Ul Amin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Sahid Mehmood
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Ahsan Nazir
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Yusheng Xing
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Di Shen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
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2
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Pang Y, Jin X, Huang G, Wan L, Ji S. Directed Self-Assembly of Styrene-Methyl Acrylate Block Copolymers with Sub-7 nm Features via Thermal Annealing. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00174] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yuanyuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Xiaosa Jin
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Guangcheng Huang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Lei Wan
- HGST, A Western Digital Company, San Jose Research Center, 5601 Great Oaks Parkway, San Jose, California 95119, United States
| | - Shengxiang Ji
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
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Fukuhara J, Yasui A, Yamamoto K, Sakurai S. Versatile Controls of Microdomain Morphologies and Temperature Dependencies in Lamellar Spacing by Blending Diblock Copolymers Bearing Antisymmetric Compositions. ACS OMEGA 2017; 2:8580-8590. [PMID: 31457391 PMCID: PMC6645656 DOI: 10.1021/acsomega.7b01075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 11/08/2017] [Indexed: 06/10/2023]
Abstract
The morphologies of the microphase-separated structures in the binary blends of diblock copolymers (AB/AB) have been studied intensively for the case of diblock copolymers bearing antisymmetric compositions with similar molecular weights. Here, the two diblock copolymers 1 and 2, of which compositions are 0.5 - x and 0.5 + x (0 < x < 0.5), respectively, were blended, and the morphology diagram was constructed in the plot of χZ vs the average composition of the A component, where χ is the interaction parameter between A and B segments and Z is the average degree of polymerization of the two AB diblock copolymers. The temperature-dependent morphologies were analyzed by synchrotron small-angle X-ray scattering (SAXS) measurements. It was found that the morphology diagram agrees in principle with the theoretical one for the neat AB diblocks by Matsen and Bates (Macromolecules 1996, 29, 1091-1098), although the disordered phase was a bit expanded in the experimentally determined morphology diagram. Anomalous temperature dependencies in the lamellar spacing have been also comprehensively studied for the binary blends of antisymmetric diblock copolymers as a function of the degree of compositional asymmetry by closely adjusting the average composition in the blend specimen at 0.50. For this purpose, more than 20 neat diblock copolymers have been synthesized with a wide range of compositions from 0.20 to 0.87 and a range of molecular weight of 12 000-33 800. The temperature dependencies of the lamellar spacing were also analyzed by synchrotron SAXS measurements. As a result, the following things were found. The scaling exponent α in D ∼ T α was still negative but slightly larger than the usual value (i.e., α = -0.33) for the smaller degree of asymmetry in the composition (i.e., x is small), while α became positive for the higher degree of asymmetry. The latter result is very anomalous because the temperature dependence is opposite (i.e., the lamellar spacing increases with an increase of temperature). The value of α was found to be linearly rationalized with the degree of asymmetry τ (which is especially introduced in the current paper for this purpose), for the binary blends with the average composition of 0.50. Based on this result, one can prepare lamellar microdomains, of which spacing does not change with temperature, by blending two diblock copolymers with τ = 1.33 (corresponding to 0.3 and 0.7 of compositions) having similar molecular weights. This would be important for manufacturing materials with properties (for instance, the optical property) independent of temperature. From the current study, the binary blends of the antisymmetric diblock copolymers are concluded to be versatile such that the precise controls of the morphologies and the temperature dependencies of the lamellar microdomains are plausible.
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Affiliation(s)
- Junji Fukuhara
- Department
of Biobased Materials Science, Kyoto Institute
of Technology, Matsugasaki, Sakyo-ku,
Kyoto 606-8585, Japan
| | - Akifumi Yasui
- Department
of Biobased Materials Science, Kyoto Institute
of Technology, Matsugasaki, Sakyo-ku,
Kyoto 606-8585, Japan
| | - Katsuhiro Yamamoto
- Department
of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
- Frontier
Research Institute for Materials Science, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Shinichi Sakurai
- Department
of Biobased Materials Science, Kyoto Institute
of Technology, Matsugasaki, Sakyo-ku,
Kyoto 606-8585, Japan
- Institute
of Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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Luo M, Brown JR, Remy RA, Scott DM, Mackay ME, Hall LM, Epps TH. Determination of Interfacial Mixing in Tapered Block Polymer Thin Films: Experimental and Theoretical Investigations. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00946] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | - Jonathan R. Brown
- William
G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | | | | | | | - Lisa M. Hall
- William
G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
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5
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Xia Y, Li Y, Burts AO, Ottaviani MF, Tirrell DA, Johnson JA, Turro NJ, Grubbs RH. EPR Study of Spin Labeled Brush Polymers in Organic Solvents. J Am Chem Soc 2011; 133:19953-9. [DOI: 10.1021/ja2085349] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yan Xia
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Yongjun Li
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Alan O. Burts
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - M. Francesca Ottaviani
- Department of Earth, Life and Environment Sciences, University of Urbino, Loc. Crocicchia -61029 Urbino, Italy
| | - David A. Tirrell
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jeremiah A. Johnson
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Nicholas J. Turro
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Robert H. Grubbs
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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Li G, Min G, Fei L, Ni X, Lu W. One-step synthesis to photoelectric hybrid composite of N-vinylcarbazole–methyl acrylate copolymer and ZnO nanocrystals via nanocrystals-initiated polymerization. J Colloid Interface Sci 2009; 334:8-12. [DOI: 10.1016/j.jcis.2009.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 03/17/2009] [Accepted: 03/21/2009] [Indexed: 11/28/2022]
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YAMAMOTO K, NANBU K, MIWA Y, TAKAGI H, HARA S, SHIMADA S. Molecular Mobility of Chain Ends of Matrix Chains in Phase-Separated Di-block Copolymers. KOBUNSHI RONBUNSHU 2007. [DOI: 10.1295/koron.64.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Kota NANBU
- Nagoya Institute of Technology, Graduate School of Engineering
| | - Yohei MIWA
- Nagoya Institute of Technology, Graduate School of Engineering
| | - Hideaki TAKAGI
- Nagoya Institute of Technology, Graduate School of Engineering
| | - Shigeo HARA
- Nagoya Institute of Technology, Graduate School of Engineering
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Miwa Y, Yamamoto K, Tanabe T, Okamoto S, Sakaguchi M, Sakai M, Shimada S. An ESR Spin-Label Study on Molecular Mobility in the Interface between Microphases of a Diblock Copolymer: Effects of Admixture of Homopolymers That Are Miscible with One of the Blocks. J Phys Chem B 2006; 110:4073-82. [PMID: 16509699 DOI: 10.1021/jp056502m] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular mobility in the interfacial region of a microphase-separated structure was studied in binary mixtures of AB-type diblock copolymers and homopolymers (miscible with only A) by the spin-label technique. In this study, we prepared (a) binary blends of polystyrene-block-poly(methyl acrylate) (PS-block-PMA) and homopolymer poly(cyclohexyl acrylate)'s having the number-averaged molecular weight (Mn) of 1000 (PCHA-S) and (b) having the Mn of 17300 (PCHA-L), and (c) binary mixtures of the PS-block-PMA and homopolymer PS with the Mn of 900 (PS-1). Emphasis was placed on effects of the molecular weight and the miscibility of added homopolymers on the mobility in the interfacial region of the microphase separation. Selective incorporation of the added PCHA-S, PCHA-L, and PS-1 into the PS phase of the PS-block-PMA was confirmed by modulated-temperature differential scanning calorimetry (MDSC) measurement as a decrease in the glass transition temperature of the PS phase. Moreover, the MDSC and small-angle X-ray scattering (SAXS) measurements suggested that the spatial distributions of the PCHA-S and PS-1 in the PS phase were relatively uniform because of their small Mn. On the other hand, the distribution of the PCHA-L in the PS phase was somewhat heterogeneous because of the large Mn of the PCHA-L. The spin-label at the junction point of the PS-block-PMA allowed us to estimate the mobility in the interfacial region of the microphase separation. Influence of the PCHA-S and PCHA-L on the mobility in the interfacial region was negligible even though the relatively uniform distribution of the PCHA-S in the PS phase was suggested by the SAXS and MDSC. More uniform distribution of the PS-1 than that of the PCHA-S in the PS phase was suggested by the SAXS, and the mobility in the interfacial region was slightly enhanced by the addition of the PS-1. However, the mobility was almost constant against an increase in the PS-1. The PS-1 was considered to be penetrated into the interfacial region and activated the mobility, but the fraction of the PS-1 in the interfacial region was constant irrespective of the blended amount of the PS-1. These results suggest that effects of homopolymers on the mobility in the interface are significantly related to their spatial distribution in the host phase.
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Affiliation(s)
- Yohei Miwa
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
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Yamamoto K, Kato K, Sugino Y, Hara S, Miwa Y, Sakaguchi M, Shimada S. ESR Study on Segmental Motion of Polyethylene in Amorphous Region, Dependent on Crystallinity, Molecular Weight, and Labeled Site. Macromolecules 2005. [DOI: 10.1021/ma050062f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Katsuhiro Yamamoto
- Graduate School of Engineering, Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan, and Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan
| | - Kazumichi Kato
- Graduate School of Engineering, Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan, and Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan
| | - Yusuke Sugino
- Graduate School of Engineering, Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan, and Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan
| | - Shigeo Hara
- Graduate School of Engineering, Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan, and Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan
| | - Yohei Miwa
- Graduate School of Engineering, Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan, and Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan
| | - Masato Sakaguchi
- Graduate School of Engineering, Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan, and Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan
| | - Shigetaka Shimada
- Graduate School of Engineering, Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan, and Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan
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Miwa Y, Tanabe T, Yamamoto K, Sugino Y, Sakaguchi M, Sakai M, Shimada S. Segmental Dynamics and Self-Concentration around Chain Ends in Miscible Blend of Poly(cyclohexyl methacrylate) and Poly(cyclohexyl acrylate) As Studied by the Spin-Label Technique. Macromolecules 2004. [DOI: 10.1021/ma048288q] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yohei Miwa
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Takuya Tanabe
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Katsuhiro Yamamoto
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Yusuke Sugino
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Masato Sakaguchi
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Masahiro Sakai
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Shigetaka Shimada
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
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11
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Miwa Y, Sugino Y, Yamamoto K, Tanabe T, Sakaguchi M, Sakai M, Shimada S. Electron Spin Resonance Study on Dynamic Heterogeneity in Miscible Blend of Poly(cyclohexyl methacrylate) and Poly(cyclohexyl acrylate). Macromolecules 2004. [DOI: 10.1021/ma049026r] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yohei Miwa
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Yusuke Sugino
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Katsuhiro Yamamoto
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Takuya Tanabe
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Masato Sakaguchi
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Masahiro Sakai
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Shigetaka Shimada
- Department of Materials Science & Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; Nagoya Keizai University, 61 Uchikubo, Inuyama, 484-8503, Japan; and Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 38 Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
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