Polymer
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#1Jian Li (SWJTU: Southwest Jiaotong University)H-Index: 5
#2Zhihong Liang (SWJTU: Southwest Jiaotong University)H-Index: 1
Last. Qianhua Kan (SWJTU: Southwest Jiaotong University)H-Index: 27
view all 4 authors...
Abstract null null The influences of loading conditions on the shape memory effect (SME) of thermo-induced shape memory polyurethane (TSMPU) are investigated by series of thermo-mechanical deformation experiments. The variables related to mechanical responses and the strain contours are extracted to analyze the SME. It is shown that the recovery ratio gradually decreases and the residual strain gradually accumulates with the increase of number of cycles. Then, the internal stress is obtained fro...
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#1Guanwu Yin (Hangzhou Normal University)H-Index: 4
#2Lijia Liu (HEU: Harbin Engineering University)H-Index: 11
Last. Toshiki Aoki (Niigata University)H-Index: 33
view all 6 authors...
Abstract null null A chiral phenylacetylene (1) having two hydroxy groups was synthesized by using an achiral catalytic system of [Rh(norbornadiene)Cl]2/triethylamine. This chiral monomer 1 was suitable to the asymmetric-induced polymerization to induce chirality in the main chain. The chirality itself of the resulting homopoly(1) in solution showed an on-off switching ability responding to the solvent polarity. The on-off switching of chirality was due to the rigid and compact helical main chai...
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#1Michael Camara (UC: University of Cincinnati)
#2Kabir Rishi (UC: University of Cincinnati)H-Index: 5
Last. Sathish K. Sukumaran (YU : Yamagata University)H-Index: 15
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Abstract null null Melt crystallized polymers display an emergent, multi-hierarchical, ordered structure made up of stacked lamellar single crystals that form fibrous or other meso structures which, in turn, form macroscopic crystallites. A dominant feature of small-angle scattering from these complex assemblies is a correlation peak associated with the stacking period. A new model-based function is proposed for small-angle scattering data from such correlated lamellar multi-hierarchical structu...
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#1Bin Cheng (CAS: Chinese Academy of Sciences)
#2Haitong Zhao (CAS: Chinese Academy of Sciences)
Last. Jiang Zhao (CAS: Chinese Academy of Sciences)H-Index: 15
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Abstract null null The re-entrant phase separation inside an evaporating droplet of poly (N-isopropyl acryl amide) (PNIPAM) solution with the binary solvent of ethanol and water is discovered and monitored continuously by optical microscopy. Because of the higher evaporation rate of ethanol than water, the solvent composition is changed by evaporation. As a result, the cononsolvency of PNIPAM makes the polymer precipitate into the solution and redissolve afterwards along the proceeding of the ev...
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#1Mikihiro Hayashi (Nagoya Institute of Technology)H-Index: 11
#2Keisuke Shibata (Nagoya Institute of Technology)H-Index: 3
Last. Shogo Nobukawa (Nagoya Institute of Technology)H-Index: 16
view all 3 authors...
Abstract null null Toughness enhancement of amorphous glassy polymers is required to expand the application range of thermoplastic polymers. This report describes the implantation of ductile nature into poly(methyl methacrylate) (PMMA) resins utilizing a graft architecture with a flexible polyester main chain, which was synthesized via atom transfer radical polymerization (ATRP) with a graft-from approach using a polyester macroinitiator bearing multiple bromo side groups. A comparison with a PM...
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#1Yuan Wang (SCU: Sichuan University)H-Index: 16
#2Cai Yuanbo (SCU: Sichuan University)H-Index: 2
Last. Huawei Zou (SCU: Sichuan University)H-Index: 21
view all 8 authors...
Abstract null null In this study, the high-performance PDMS elastomer was successfully prepared by constructing epoxy/silicone hybrid network through hydrosilylation and epoxide-opening reaction. The tensile strength, elongation at break and shear strength of the prepared hybrid material were increased by 200.0%, 59.6%, 140.6% respectively when compared with the pure PDMS. The thermal residual weight of the hybrid material at 800 °C in N2 was kept at 56.9%. The thermal degradation mechanism of h...
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#1J. Martín-de León (University of Valladolid)H-Index: 1
#2M. Jiménez (University of Valladolid)
Last. Miguel Angel Rodriguez-Perez (University of Valladolid)H-Index: 29
view all 5 authors...
Abstract null null The key parameters and production route for the easy production of highly transparent nanocellular films based on polymethyl methacrylate (PMMA) with thickness below 1 mm are herein described. null The use of the gas dissolution foaming process (CO2 as physical blowing agent) with saturation pressures of 40 and 50 MPa, a saturation temperature of 0 °C and a saturation time of 2.5 h together with an adequate approach to foam the samples leads to the production of directly trans...
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#1Nicolas Candau (UPC: Universitat Politècnica de Catalunya)H-Index: 13
#2Eduard Vives (UB: University of Barcelona)H-Index: 35
Last. Maria Lluisa Maspoch (UPC: Universitat Politècnica de Catalunya)H-Index: 12
view all 4 authors...
Abstract null null Vulcanized natural/wastes rubber blends were prepared and their elastocaloric properties were analysed. A thermodynamic frame was used to discriminate the contributions of thermoelastic effects and strain induced crystallization/melting. The substitution of 20 wt% of the natural rubber matrix by waste rubber particles resulted in a maintain and even a slight improvement of heat exchanges (+10%), that we ascribed to a (i) high thermoelastic effect and a (ii) a high ability of t...
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#1Jianxiong Xu (Hunan University of Technology)H-Index: 10
#2Ziyu GuoH-Index: 2
Last. Jie ZhengH-Index: 65
view all 9 authors...
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#1Temitope Q. Aminu (Purdue University West Lafayette)H-Index: 2
#2David F. Bahr (Purdue University West Lafayette)H-Index: 51
Abstract null null In service, hydraulic flow is usually perpendicular to the plane of electrospun fiber mats for water filtration, inducing an out-of-plane deformation. In this paper, we have investigated the out-of-plane deformation response of wet electrospun polyacrylonitrile fiber mats with distinct average constituent fiber diameters of 232 ± 36 nm, 727 ± 148 nm and 1017 ± 80 nm, but with nominally similar thicknesses and areal densities using the classical bulge testing technique. The res...
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