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Highly crystalline conductive electrodeposited films of PANI-CSA/CoFe2O4 nanocomposites. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Mehravar E, Iturrospe A, Arbe A, Asua JM, Leiza JR. Phase behavior of side-chain liquid-crystalline polymers containing biphenyl mesogens with different spacer lengths synthesized via miniemulsion polymerization. Polym Chem 2016. [DOI: 10.1039/c6py00791k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
High molar mass SCLCPs were synthesized by miniemulsion polymerization, and the phase behavior of the polymers was investigated by a combination of DSC, PLM, SAXS and WAXS.
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Affiliation(s)
- Ehsan Mehravar
- POLYMAT and Kimika Aplikatua Saila
- Kimika Zientzien Fakultatea
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Zentroa
- Donostia-San Sebastian 20018
| | - Amaia Iturrospe
- Centro de Física de Materiales (CFM) (CSIC-UPV/EHU) and Materials Physics Center (MPC)
- E-20018 San Sebastian
- Spain
| | - Arantxa Arbe
- Centro de Física de Materiales (CFM) (CSIC-UPV/EHU) and Materials Physics Center (MPC)
- E-20018 San Sebastian
- Spain
| | - José M. Asua
- POLYMAT and Kimika Aplikatua Saila
- Kimika Zientzien Fakultatea
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Zentroa
- Donostia-San Sebastian 20018
| | - Jose R. Leiza
- POLYMAT and Kimika Aplikatua Saila
- Kimika Zientzien Fakultatea
- University of the Basque Country UPV/EHU
- Joxe Mari Korta Zentroa
- Donostia-San Sebastian 20018
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Berndt A, Pospiech D, Jehnichen D, Häußler L, Voit B, Al-Hussein M, Plötner M, Kumar A, Fischer WJ. Methacrylate Copolymers with Liquid Crystalline Side Chains for Organic Gate Dielectric Applications. ACS APPLIED MATERIALS & INTERFACES 2015; 7:12339-12347. [PMID: 25496492 DOI: 10.1021/am5069479] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
UNLABELLED Polymers for all-organic field-effect transistors are under development to cope with the increasing demand for novel materials for organic electronics. Besides the semiconductor, the dielectric layer determines the efficiency of the final device. Poly(methyl methacrylate) (PMMA) is a frequently used dielectric. In this work, the chemical structure of this material was stepwise altered by incorporation of cross-linkable and/or self-organizing comonomers to improve the chemical stability and the dielectric properties. Different types of cross-linking methods were used to prevent dissolution, swelling or intermixing of the dielectric e.g. during formation processes of top electrodes or semiconducting layers. Self-organizing comonomers were expected to influence the dielectric/semiconductor interface, and moreover, to enhance the chemical resistance of the dielectric. Random copolymers were obtained by free radical and reversible addition-fragmentation chain transfer (RAFT) polymerization. With 6-[4-(4'-cyanophenyl)phenoxy]alkyl side chains having hexyl or octyl spacer, thermotropic liquid crystalline (LC) behavior and nanophase separation into smectic layers was observed, while copolymerization with methyl methacrylate induced molecular disorder. In addition to chemical, thermal and structural properties, electrical characteristics like breakdown field strength (EBD) and relative permittivity (k) were determined. The dielectric films were studied in metal-insulator-metal setups. EBD appeared to be strongly dependent on the type of electrode used and especially the ink formulation. Cross-linking of PMMA yielded an increase in EBD up to 4.0 MV/cm with Ag and 5.7 MV/cm with PEDOT PSS electrodes because of the increased solvent resistance. The LC side chains reduce the ability for cross-linking resulting in decreased breakdown field strengths.
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Affiliation(s)
- Andreas Berndt
- †Organic Chemistry of Polymers, Technische Universität Dresden, 01069 Dresden, Germany
- ‡Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
- §Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
| | - Doris Pospiech
- ‡Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
- §Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
| | - Dieter Jehnichen
- ‡Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Liane Häußler
- ‡Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Brigitte Voit
- †Organic Chemistry of Polymers, Technische Universität Dresden, 01069 Dresden, Germany
- ‡Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
- §Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
| | | | - Matthias Plötner
- §Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
- ⊥Institute of Semiconductors and Microsystems, Microsystems Technology, Technische Universität Dresden, 01069 Dresden, Germany
| | - Amit Kumar
- §Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
- ⊥Institute of Semiconductors and Microsystems, Microsystems Technology, Technische Universität Dresden, 01069 Dresden, Germany
| | - Wolf-Joachim Fischer
- §Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany
- ⊥Institute of Semiconductors and Microsystems, Microsystems Technology, Technische Universität Dresden, 01069 Dresden, Germany
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Xie HL, Ni B, Liu Q, Wang J, Yang S, Zhang HL, Chen EQ. Self organization of main-chain/side-chain liquid crystalline polymer based on “jacketing” effect with different lengths of spacer: from smectic to hierarchically ordered structure. RSC Adv 2015. [DOI: 10.1039/c5ra21257j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of combined main-chain/side-chain liquid crystalline polymers based on the “jacketing” effect, with different alkyl spacer lengths (n = 2–10), have been successfully synthesized and their self-organization behavior has been investigated.
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Affiliation(s)
- He-lou Xie
- Key Laboratory of Special Functional Polymer Materials of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- College of Chemistry
- Xiangtan University
| | - Bin Ni
- Key Laboratory of Special Functional Polymer Materials of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- College of Chemistry
- Xiangtan University
| | - Quan Liu
- Key Laboratory of Special Functional Polymer Materials of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- College of Chemistry
- Xiangtan University
| | - Jun Wang
- Beijing National Laboratory for Molecular Sciences
- Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- College of Chemistry and Molecular Engineering
- Center for Soft Matter Science and Engineering
- Peking University
| | - Shuang Yang
- Beijing National Laboratory for Molecular Sciences
- Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- College of Chemistry and Molecular Engineering
- Center for Soft Matter Science and Engineering
- Peking University
| | - Hai-liang Zhang
- Key Laboratory of Special Functional Polymer Materials of Hunan Province
- Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
- College of Chemistry
- Xiangtan University
| | - Er-qiang Chen
- Beijing National Laboratory for Molecular Sciences
- Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- College of Chemistry and Molecular Engineering
- Center for Soft Matter Science and Engineering
- Peking University
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Al-Hussein M, Koenig M, Stamm M, Uhlmann P. The Distribution of Immobilized Platinum and Palladium Nanoparticles within Poly(2-vinylpyridine) Brushes. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Meike Koenig
- Leibniz Institute of Polymer Research Dresden; Hohe Strasse 6 01069 Dresden Germany
- Department of Physical Chemistry of Polymer Materials; Technische Universität Dresden; 01062 Dresden Germany
| | - Manfred Stamm
- Leibniz Institute of Polymer Research Dresden; Hohe Strasse 6 01069 Dresden Germany
- Department of Physical Chemistry of Polymer Materials; Technische Universität Dresden; 01062 Dresden Germany
| | - Petra Uhlmann
- Leibniz Institute of Polymer Research Dresden; Hohe Strasse 6 01069 Dresden Germany
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Xie HL, Jie CK, Yu ZQ, Liu XB, Zhang HL, Shen Z, Chen EQ, Zhou QF. Hierarchical Supramolecular Ordering with Biaxial Orientation of a Combined Main-Chain/Side-Chain Liquid-Crystalline Polymer Obtained from Radical Polymerization of 2-Vinylterephthalate. J Am Chem Soc 2010; 132:8071-80. [DOI: 10.1021/ja101184u] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- He-Lou Xie
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
| | - Chang-Kai Jie
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
| | - Zhen-Qiang Yu
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
| | - Xuan-Bo Liu
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
| | - Hai-Liang Zhang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
| | - Zhihao Shen
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
| | - Er-Qiang Chen
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
| | - Qi-Feng Zhou
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China, and Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering,
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Xie HL, Liu YX, Zhong GQ, Zhang HL, Chen EQ, Zhou QF. Design, Synthesis, and Multiple Hierarchical Ordering of a Novel Side-Chain Liquid Crystalline-Rod Diblock Copolymer. Macromolecules 2009. [DOI: 10.1021/ma9017668] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- He-Lou Xie
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges, and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yi-Xin Liu
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Guan-Qun Zhong
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges, and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Hai-Liang Zhang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges, and Universities of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, Hunan Province, China
| | - Er-Qiang Chen
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Qi-Feng Zhou
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering, and Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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Laiho A, Hiekkataipale P, Ruokolainen J, Ikkala O. Directing the Smectic Layer Orientation by Shear Flow in Hierarchical Lamellar-within-lamellar Liquid Crystalline Diblock Copolymers. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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de Jeu WH, Séréro Y, Al-Hussein M. Liquid Crystallinity in Block Copolymer Films for Controlling Polymeric Nanopatterns. ADVANCES IN POLYMER SCIENCE 2005. [DOI: 10.1007/12_006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Al-Hussein M, de Jeu WH, Lohmeijer BGG, Schubert US. Phase Behavior of the Melt of Polystyrene−Poly(ethylene oxide) Metallo-Supramolecular Diblock Copolymer with Bulky Counterions. Macromolecules 2005. [DOI: 10.1021/ma047784b] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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