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Shi Q, Zou J, Pan C, Fu Y, Supty MN, Sun J, Yi C, Hu J, Tan H. Study of the phase-transition behavior of (AB) 3 type star polystyrene- block-poly( n-butylacrylate) copolymers by the combination of rheology and SAXS. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
A series of three-armed star polystyrene-block-poly(n-butylacrylate) copolymers (PS-b-PBA)3 were synthesized to study the phase-transition behavior of the copolymers. The order-to-disorder transition temperature has been determined by oscillatory at different temperatures and dynamic temperature sweep at a fixed frequency. Moreover, the micro-phase separation in the block copolymers has been evaluated by time–temperature superposition, while the free volume and the active energy of the copolymers have been calculated. Interestingly, active energy decreased with the increase in the molecular weight of the PBA components. To further determine the order-to-disorder transition temperature precisely, small angle X-ray scattering was performed at different temperatures. These results confirm that the chain mobility of the star-shaped copolymers is strongly dependent on the arm molecular weight of the star polymers, which will be beneficial for the processing and material preparation of the block copolymers.
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Affiliation(s)
- Qingwen Shi
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Jiaqi Zou
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Chen Pan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Yin Fu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Mahfzun Nahar Supty
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Jiuxiao Sun
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Chunlong Yi
- China CAMA Engineering Wuhan University Design & Research Company Limited (Camce Whu Design & Research Co., Ltd) , Wuhan , 430000 , China
| | - Jingchuan Hu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
| | - Haiying Tan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, and Key Laboratory of Textile Fiber and Products of Ministry of Education, College of Materials Science and Engineering, Wuhan Textile University , Wuhan , 430200 , China
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Shi D, Miao Y, Zhu H, Li Y, Wang Z. Role of the heat treatment of partial melt recrystallization method on microstructure change and toughness of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(HB-co-HV)]. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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