Molecular Aggregation States and Physical Properties of Syndiotactic Polystyrene/Hydrogenated Polyisoprene Multiblock Copolymers with Crystalline Hard Domain

被引：16

作者：

Higaki, Yuji ^{[1
,2
,3
]}

Suzuki, Ken ^{[2
]}

Kiyoshima, Yudai ^{[2
]}

Toda, Tomoyuki ^{[4
,5
]}

Nishiura, Masayoshi ^{[4
,5
]}

Ohta, Noboru ^{[6
]}

Masunaga, Hiroyasu ^{[6
]}

Hou, Zhaomin ^{[4
,5
]}

Takahara, Atsushi ^{[1
,2
,3
]}

机构：

[1] Kyushu Univ, Inst Mat Chem & Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[2] Kyushu Univ, Grad Sch Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[3] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[4] RIKEN, Organometall Chem Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[5] RIKEN, Ctr Sustainable Resource Sci, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[6] Japan Synchrotron Radiat Res Inst SPring 8, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan

来源：

MACROMOLECULES | 2017年 / 50卷 / 16期

关键词：

GLASSY SPHERICAL MICRODOMAINS; STRAIN-INDUCED DEFORMATION; CUBIC LATTICE SYSTEMS; BLOCK-COPOLYMERS; PARACRYSTALLINE DISTORTION; THERMOPLASTIC ELASTOMERS; ELASTIC-SCATTERING; POLYMER INTERFACES; COLLOIDAL CRYSTALS; POLYSTYRENE;

D O I：

10.1021/acs.macromol.7b01193

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Molecular aggregation structure and mechanical as well as thermal properties of novel well-defined multiblock copolymers consisting of crystalline syndiotactic polystyrene (sPS) and rubbery hydrogenated polyisoprene (hPIp) were investigated. The morphology and crystalline ordered structure of the multiblock copolymer films prepared by solvent casting from 1,2-dichlorobenzene solution depended on the volume fraction of sPS (VEsPS) and number of blocks. The multiblock copolymer films exhibited ordered morphology with low crystallinity. The crystallinity of the sPS reduced with decreasing the VEsPS. The pentablock copolymer produced more ordered morphology and less crystallinity than the triblock copolymers. The anisotropic orientation and mechanical stability of the delta form sPS crystals in the spherical sPS domains during uniaxial stretching were demonstrated. Tensile testing and dynamic mechanical analysis indicated that these multiblock copolymer films with appropriate sPS fraction are strong, tough, and elastic and thus could be potential candidates for a new type of thermoplastic elastomer with discrete crystalline hard domains.

引用

页码：6184 / 6191

页数：8

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