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copolymerization 2

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Graft copolymerization of -isopropylacrylamide with 3-(methacryloxy)propyl trimethoxysilane on ultrafine

ZHANG Liping, ZHU Yi, NI Caihua

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 242-247 doi: 10.1007/s11705-008-0043-y

Abstract: Thermosensitive core-shell particles were synthesized through graft copolymerization of -isopropylacrylamideThe copolymerization was carried out using polyvinyl alcohol as a surfactant, water and cyclohexanol

Keywords： undergoes     water-methanol     surfactant concentration     copolymerization     chromatography    

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Copolymerization of polyketones catalyzed by polyacrylonitrile resin-supported palladium acetate

GUO Jintang, ZHANG Hongxin, WANG Bo, YE Yaqin

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 165-170 doi: 10.1007/s11705-008-0010-7

Abstract: Polyketone was prepared by the copolymerization of carbon monoxide (CO) and styrene (ST) catalyzed byThe resin-supported catalyst and the copolymerization product were characterized by infrared spectroscopy

Keywords： copolymerization     Electron Microscopy     monoxide     excellent catalytic     Polyketone    

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Cryo-copolymerization preparation of dextran-hyaluronate based supermacroporous cryogel scaffolds for

Dongjiao ZHOU, Shaochuan SHEN, Junxian YUN, Kejian YAO, Dong-Qiang LIN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 339-347 doi: 10.1007/s11705-012-1209-1

Abstract: based supermacroporous cryogel scaffolds for soft tissue engineering were prepared by free radical cryo-copolymerization

Keywords： cryogel scaffold     tissue engineering     dextran     hyaluronate     3T3-L1 preadipocyte    

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Ethylene Copolymerization with Linear and End-Cyclized Olefins via a Metallocene Catalyst: Polymerization Letter

Changjiang Wu, Minqiao Ren, Liping Hou, Shuzhang Qu, Xinwei Li, Cui Zheng, Jian Chen, Wei Wang

Engineering 2023, Volume 30, Issue 11,   Pages 93-99 doi: 10.1016/j.eng.2023.07.001

Abstract: The copolymerization of ethylene with linear α-olefins results in a higher turn-over frequency(TOF) and lower incorporation than copolymerization with end-cyclized α-olefins, which may indicate

Keywords： Metallocene catalyst     Ethylene copolymerization     Comonomer distribution     Crystallization destructive    

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Copolymerization of 1-butene and 1-hexene with supported titanium catalyst

ZHAO Yongxian, SHAO Huafeng, WANG Bo, YAO Wei, HUANG Baochen

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 304-309 doi: 10.1007/s11705-007-0056-y

Abstract: With TiCl/MgCl (Ti) and Al(-Bu) (Al) as catalysts, the thermoplastic copolymer of 1-butene(Bt) and 1-hexene(He) was synthesized successfully. The effects of Bt/He, Ti/(He+Bt), Al/Ti, temperature and reaction time on conversion, catalyst efficiency(CE), intrinsic viscosity([η]) and insoluble content were studied. The copolymer was analyzed with Fourier transform-infrared (FTIR) and nuclear magnetic resonance (H-NMR). Results showed that the optimal polymerization conditions were: He/Bt = 0.25, temperature 40ºC–50ºC, Al/Ti = 400–500, Ti/(Bt+He) = 3×10-4*times;10, time 4 h. Intrinsic viscosity was found to increase with increasing Ti/(Bt+He) and decreasing Al/Ti and polymerization temperature. When the molar content of He, Al/Ti and polymerization temperature increased, the insoluble content in CHCl of copolymers decreased. When Ti/(Bt+He) and reaction time increased, the insoluble content in CHCl of copolymers also increased. The crystallization and stereoregularity of poly(1-butene) decreased with the addition of He.

Keywords： reaction     conversion     temperature     polymerization temperature     magnetic resonance    

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Implementing An “Impracticable” Copolymerization to Fabricate A Desired Polymer Precursor for N-doped Article

Shi-Chao Qi, Xiao-Jie Lu, Yin-Cong Lou, Rui Zhou, Ding-Ming Xue, Xiao-Qin Liu, Lin-Bing Sun

Engineering 2022, Volume 16, Issue 9,   Pages 154-161 doi: 10.1016/j.eng.2021.07.031

Abstract: A desired copolymerization reaction between 1,3,5-tris(chloromethyl)-2,4,6-trimethylbenzene and melaminethermal motions of the activated monomer molecules in the solid phase, were demonstrated to make the copolymerization

Keywords： Solvent-free method     Solvent effect     Copolymerization     N-doped porous carbon    

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Ether-/Ester-/Fluorine-Rich Binding Emulsion Formula for Lithium-Ion Batteries Article

Xianqing Zeng, Donglin Han, Zeheng Li, Hongxun Wang, Gu Wu, Yong Deng, Kai Liu, Li Xie, Chengdu Liang, Min Ling, Yuchuan Huang

Engineering 2022, Volume 19, Issue 12,   Pages 199-206 doi: 10.1016/j.eng.2022.05.020

Abstract:

Practical application of a Si anode in a high-energy-density battery cannot be achieved due to the huge volume expansion of these anodes. Researchers have focused on adding binders to the anode to restrict volume expansion in order to address this issue, as the hydrogen bonds and mechanical properties of binders can be used to enhance adhesion and accommodate the volume changes of a Si anode. Herein, we comprehensively consider binders’ hydrogen bonds, mechanical properties, stability, and compatibility with the electrolyte solution, and design an ether-/ester-/fluorine-rich composite polymer, P(TFEMA-co-IBVE). The proposed binder formula possesses outstanding stability, adhesion, and mechanical strength; moreover, it can accommodate the dramatic volume changes of a Si electrode and exhibits excellent electrochemical performance, achieving a high areal capacity of about 5.4 mA∙h∙cm−2. This novel polymer design may be applied to other electrode materials in the next generation of lithium-ion batteries.

Keywords： Silicon anode     Emulsion copolymerization     Fluorine atom     Ether     Ester    

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Title Author Date Type Operation

Graft copolymerization of -isopropylacrylamide with 3-(methacryloxy)propyl trimethoxysilane on ultrafine

ZHANG Liping, ZHU Yi, NI Caihua

Journal Article

Copolymerization of polyketones catalyzed by polyacrylonitrile resin-supported palladium acetate

GUO Jintang, ZHANG Hongxin, WANG Bo, YE Yaqin

Journal Article

Cryo-copolymerization preparation of dextran-hyaluronate based supermacroporous cryogel scaffolds for

Dongjiao ZHOU, Shaochuan SHEN, Junxian YUN, Kejian YAO, Dong-Qiang LIN

Journal Article

Ethylene Copolymerization with Linear and End-Cyclized Olefins via a Metallocene Catalyst: Polymerization

Changjiang Wu, Minqiao Ren, Liping Hou, Shuzhang Qu, Xinwei Li, Cui Zheng, Jian Chen, Wei Wang

Journal Article

Copolymerization of 1-butene and 1-hexene with supported titanium catalyst

ZHAO Yongxian, SHAO Huafeng, WANG Bo, YAO Wei, HUANG Baochen

Journal Article

Implementing An “Impracticable” Copolymerization to Fabricate A Desired Polymer Precursor for N-doped

Shi-Chao Qi, Xiao-Jie Lu, Yin-Cong Lou, Rui Zhou, Ding-Ming Xue, Xiao-Qin Liu, Lin-Bing Sun

Journal Article

Ether-/Ester-/Fluorine-Rich Binding Emulsion Formula for Lithium-Ion Batteries

Xianqing Zeng, Donglin Han, Zeheng Li, Hongxun Wang, Gu Wu, Yong Deng, Kai Liu, Li Xie, Chengdu Liang, Min Ling, Yuchuan Huang

Journal Article