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SOME KEY ORDERED MACROPOROUS COMPOSITES

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Chinese Journal of Polymer Science 2013年第9期31卷 1204-1217页

作者： Jian-hua Rong Li-jun Ji zhen-zhong yang Department of Materials Science and Engineering Jinan University College of Chemistry and Chemical Engineering Yangzhou University Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences

This review summarizes recent progress of the ordered macroporous composites with the opals and inverse opal structure. Synthesis and performance of the composites are emphasized. Composition of the ordered composites is tunable ranging within metal, metal alloy, metal oxide, polymer, carbon and hydrogel. The ordered structure gives brilliant color effects, which is useful for sensors and photonic crystals. The interconnected macroporous structure provides easiness for mass transportation and species culturing.

关键词： Opal Inverse opal Ordered macroporous Composites.

Theoretical investigation of the stereoselectivity of some Diels-Alder reactions involving cyclopentadiene

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Chinese Chemical Letters 2008年第9期19卷 1135-1138页

作者： Dong Xia Zhao zhen zhen Xu zhong Zhi yang College of Chemistry and Chemical Engineering Liaoning Normal University Dalian 116029 China

The stereoselectivity of some Diels-Alder reactions was investigated by means of ABEEM-oTr model. Combined with local hard-soft and acid-base （HSAB） principle, we made reasonable explanation by calculating local sof... 详细信息

关键词： ABEEM-σπ model Diels--Alder reaction Stereoselectivity Local softness

Effect of Thermal History on Rheological Properties of Partially Hydrolyzed Polyacrylamide/Anionic Surfactant SDS Complex Systems

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Chinese Chemical Letters 2002年第5期13卷 456-459页

作者： Hual Tian BU zhen zhong yang Li HUANG Statc Key Laboratory of Polymer Physics and Chemistry Center for Molecular ScienceInstiturc of ChcmnistryChunese Acadcmy of SciencesBeijing 100080 Daqing Exploralion and Development Rescarch Institutc Daqing 163712

The effects of thermal history on the rheological properties of partially hydrolyzed polyacrylamide/ sodium dodecyl sulfate complex aqueous solutions have been studied using both steady shear and dynamic temperature sweep characterizations. An abnormal rheological behavior was found that dynamic moduli of the aqueous solutions increased, while the viscosity decreased after thermal treatment, which could help to gain insight into the micro-phase evolution of the polymer/surfactant complex aqueous solutions and its dependence on temperature.

关键词： partially hydrolyzed polyacrylamide sodium dodecyl sulfate supramolecular structure thermal history rheological properties

Cable-like Au@SiO2 Janus composite nanorods

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Chinese Chemical Letters 2018年第3期29卷 353-356页

作者： Tian-Hao Han Fu-Xin Liang zhen-zhong yang State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100190 China

Cable-like Au@SiO2 Janus composite nanorods with PS and PEG grafting on both ends respectively are fabricated by skiving in combination of a post favorable modification. The cable-like Au@SiO2 composite nanofibers are synthesized in the channel of porous anodic aluminium oxide （AAO） membrane. After skiving, the corresponding composite nanorods are obtained. Following, PEG-SH and PS-SH are conjugated onto the two ends of the nanorods by a selective partial modification, respectively. Length and diameter of the Au@SiO2 Janus composite nanorods can be tuned controllably. It can be extended to fabricate a variety of different Janus nanorods with different compositions and microstructures.

关键词： AAO membrane Janus Nanomds Skiving Selective modification

Ionic liquid functionalized polymer composite nanotubes toward dye decomposition

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Chinese Chemical Letters 2015年第8期26卷 942-945页

作者： Shu-Qin Cui Xu-yang Ji Fu-Xin Liang zhen-zhong yang State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences

Poly（ionic liquid） functionalized composite nanotubes are achieved by ATRP grafting ionic liquid monomers for example ViEtIm^＋Br^- from the poly（DVB-co-VBC） nanotubes surface. PW12O40^3- anion is introduced through anion exchange. The PW12O40^3- based composite nanotubes can synchronously absorb and decompose water soluble dyes for example methyl orange（MO）. The cooperative interplay is promising in highly efficient decomposition of dyes.

关键词： nanotubes toward decompose ionic orange ATRP Ionic absorb dispersed ethanol

Thermal comfort and thermoregulation in manned space flight

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中国应用生理学杂志 2013年第6期29卷 518-524页

作者： zhen-zhong yang Jin-xue FEI Xue-jun YU Department of Aerospace Biodynamics School of Aerospace Medicine the Fourth Military Medical University State Key Lab of Space Medicine Fundamental and Application China Astronaut Research and Training Center

Exposure to thermal environment is one of the main concerns for manned space exploration. By focusing on the works performed on thermoregulation at microgravity or simulated microgravity, we endeavored to review the investigation on space thermal environmental physiology. First of all, the application of medical requirements for the crew module design from normal thermal comfort to accidental thermal emergencies in a space craft will be addressed. Then, alterations in the autonomic and behavioral temperature regulation caused by the effect of weightlessness both in space flight and its simulation on the ground are also discussed. Furthermore, countermeasures like exercise training, simulated natural ventilation, encouraged drink, etc., in the protection of thermoregulation during space flight is presented. Finally, the challenge of space thermal environment physiology faced in the future is figured out.

关键词：载人航天飞行体温调节热舒适性模拟微重力环境生理学空间飞行太空探索应用程序

Two-dimensional mesoporous materials:From fragile coatings to flexible membranes

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Chinese Chemical Letters 2013年第2期24卷 89-92页

作者： zheng-Long yang Jiao-Li Li Cheng-Liang Zhang Yun-Feng Lu zhen-zhong yang School of Chemistry and Materials Science Ludong University lnstitute of Chemistry Chinese Academy of Sciences Institute of Chemistry Chinese Academy of Sciences Department of Chemical and Biomolecular Engineering.University of California at Los Angeles Los AngelesCA 90095USA

Received 30 November 2012 Received in revised form 24 December 2012 Accepted 26 December 2012 Available online 29 January 2013

关键词： Mesoporous materialsTwo-dimensional materialsCoatingsMembranes

PREPARATION OF BISPHENOL A EPOXY RESIN WATERBORNE DISPERSIONS BY THE PHASE INVERSION EMULSIFICATION TECHNIQUE

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Chinese Journal of Polymer Science 2000年第1期18卷 33-38页

作者： zhen-zhong yang De-lu Zhao Polymer Physics Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China Chinese Acad Sci Inst Chem Polymer Phys Lab Beijing 100080 Peoples R China

The phase inversion emulsification technique (PIET) is an effective physical method for preparing waterborne dispersions of polymer resins. Some results concerning the preparation of bisphenol A epoxy resin waterborne dispersions by PIET in our laboratory were summarized. Electrical properties, rheological behavior and morphological evolution during phase inversion progress were systematically characterized. The effects of the emulsifier concentration and emulsification temperature on phase inversion progress and the structural features of the waterborne particles were studied as well. The deformation and break up of water drops in a shear field were analyzed in terms of micro-theology, while the interaction and coalescence dynamics of water drops were discussed in terms of DLVO theory and Smoluchowski effective collision theory, respectively. Based on the experimental results and theoretical analysis, a physical model of phase inversion progress was suggested, by which the effects of the parameters on phase inversion progress and the structural features of the waterborne particles were interpreted and predicted.

关键词： phase inversion emulsification waterborne dispersions epoxy resin mechanism physical model

pH responsive Janus polymeric nanosheets

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Chinese Chemical Letters 2015年第6期26卷 657-661页

作者： Peng Zhou Qian Wang Cheng-Liang Zhang Fu-Xin Liang Xiao-zhong Qu Jiao-Li Li zhen-zhong yang State Key Laboratory of Polymer Physics and Chemistry Institute of ChemistryChinese Academy of Sciences

pH responsive polymeric Janus nanosheets with poly（maleic acid） moiety and crosslinked PS onto the corresponding sides have been synthesized by free radical polymerization. The Janus nanosheets can serve as solid emulsifier to stabilize an oil/water emulsion, whose stability is easily triggered by changing pH across pKa of the poly（maleic acid）.

关键词： pH responsive Janus Nanosheets