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| 1 | Vertical Vibration of Pile in Vibration-Induced Excess Pore Pressure Field显示文摘 | Toyoaki Nogami Fenzhi Ren Jen-Wha Chen Alfred B. Mason | 1997 | Journal of Geotechnical and Geoenvironmental Engineering1997，，5： | 2 |
| 2 | Synthesis of Polymer-Supported Heteronuclear Rhodium- Cobalt Bimetallic Carbonyl Cluster Catalysts and Their Hydroformylation Properties显示文摘Tetranuclear Rh-Co bimetallic cluster was synthesized and characterized by IR and XPS. The properties of the anchored catalysts, its stability and the ligand effect were also studied. The experimental results show that the optimal conditions for the hydroformylation of hexene-1 are as follows: the temperature is 80℃, reaction time 8 h, pressure 5. 88×105 Pa, and molar ratio of H2/CO 1. 2/1. 0. Functional groups attached to the donor atom(N) possess more or less some influence on the catalytic behavior. Compared with the homogeneous cluster, the polymer-supported bimetallic cluster is more stable. After the catalytic reaction, the structure of the anchored catalysts was not destroyed. X-ray photoelectron spectroscopy characterization indicates that there is a weak interaction between the polymer support and the active metals. | He Binglin(Ho Ping-Lum), Sun Juntan, Li Hong, Sang Junjie and Zhao Fenzhi (Institute of Polymer Chemistry, Nankai University, Tianjin) | 1989 | Chemical Research in Chinese Universities1989，5，4： | 0 |
| 3 | THE SYNTHESIS AND CHARACTERIZATION OF SOME POROUS CROSS-LINKED POLY (VINYLACETOPHENONE) RESINS AND THEIR CAPACITIES IN ADSORBING GYPENOSIDES显示文摘In search of a suitable adsorbent used for the enrichment and separation of natural saponins from an aqueous solution,a series of porous cross-linked poly (vinylaceto-phenone) resins I-Ⅸ were synthesized via the Friedel-Crafts acylation of styrene-divinyl-benzene copolymer beads.Their carbonyl contents were characterized by infrared spectra and elemental analysis.Their physical properties such as bulk densities,skeleton densities,and specific surface areas were also determined.The tests for the resins adsorption of gypenosides showed that only those resins with high carbonyl contents and large specific surface areas could favorably adsorb gypenosides from an aqueous solution with much higher capacities. | MA Jianbiao, ZHAO Cunxiang, LI Jianmin, WANG Limin,SHI Zuoqing, ZHAO Fenzhi, and HE Binglin Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China | 1992 | Chinese Journal of Reactive Polymers1992，1，1： | 0 |
| 4 | EFFECT OF 2-HYDROXYETHYL METHACRYLATEON SEMIBATCH EMULSIFIER-FREE EMULSION COPOLYMERIZATION OF METHYLMETHACRYLATE AND BUTYL ACRYLATE显示文摘The semibatch emulsifier-free emulsion copolymerization of methyl methacrylate(MMA and butyl acrylate (BA) in the presence of 2-hydroxyethyl methacrylate (HEMA)initiated by K2S2O8 (PSP) was studied. The latex particles can maintain an appreciablestability during the emulsifier-free emulsion copolymerization of MMA and BA in thepresence of HEMA The average particle diameter increase with an increase of totalsolids content, HEMA content, PSP content, ioniC strength of the system and monomerfeed rate, and decrease with the monomer feed ratio From 3/1(MMA/BA;molar ratio.)to1/3. The stability of this reaction system is improved by adding HEMA as nonioniccomonomer High solids content (50%) latex with monodisperse particle can beobtained using this process. | GUO Tianying SONG Moudao HAO Guangjie ZHAO Fenzhi ZHANG Banghua(The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation,Institute of Polymer Chemistry Nankai University Tianjin 300071, China.) | 1999 | Chinese Journal of Reactive Polymers1999，8，1： | 0 |
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