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Mao Y, Kubota Y, Feng R, Gong J, Ishigami A, Kobayashi Y, Watabe T, Aoki D, Otsuka H, Ito H. Structure Reconfigurable Mechanochromic Polymer with Shape Memory and Strain-Monitored Function Enabled by a Covalent Adaptable Network. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuchen Mao
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Yuto Kubota
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Ruiqi Feng
- Department of Polymeric and Organic Materials Engineering, Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Jin Gong
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Akira Ishigami
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Yutaka Kobayashi
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Takuma Watabe
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hiroshi Ito
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
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Mao Y, Kubota Y, Gong J, Kurose T, Ishigami A, Seshimo K, Watabe T, Aoki D, Otsuka H, Ito H. Mechanical Performance and Visual Fracture Warning Function of Mechanochromic Stimuli-Recovery Polymer Networks. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00904] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yuchen Mao
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Yuto Kubota
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Jin Gong
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Takashi Kurose
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Akira Ishigami
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Kota Seshimo
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Takuma Watabe
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Daisuke Aoki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hideyuki Otsuka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Hiroshi Ito
- Research Center for GREEN Materials & Advanced Processing, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
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Application of Polyvinyl Acetate/Lignin Copolymer as Bio-Based Coating Material and Its Effects on Paper Properties. COATINGS 2021. [DOI: 10.3390/coatings11020192] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, lignin-vinyl acetate copolymers containing different fractions of lignin were synthesized by the copolymerization technique. The synthesized copolymer was successfully applied to coat the paper for enhancing its properties and performance. The effects of the lignin-vinyl acetate copolymer on the physicochemical, air permeability and mechanical properties of paper were investigated. The mechanical strength, hydrophilic, and air permeability properties of coated paper were improved with the increasing content of the lignin. Lignin-vinyl acetate copolymer containing 15% lignin coated paper exhibited a 1.86 times increase in the tensile index, 45 times increase in the water contact angle, and a 41.1% reduction in the air permeability compared with uncoated paper. Scanning electron microscopy was applied to study the morphology of the coated and uncoated paper. The results showed that paper surface porosity structure was decreased, while the surface smoothness was enhanced considerably with increasing lignin fraction in the copolymer. Therefore, the successful fabrication of such an enchanting coated paper may afford new potential and great applications in the packaging paper.
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