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Chinese Journal of chemistry 1986年第3期4卷 203-208页

作者： GAO Jian-Ping WU Shih-Kang TONG Zheng-He feng xin-de institute of photographic chemistry, academia sinica, beijing department of chemistry, peking university, beijing institute of photographic chemistry Academia Sinica Beijing department of chemistry Peking University Beijing

The triplet energy migration of polymers and copolymers of vinyl benzophenone (VBP)and vinyl naphthalene (VN) has been studied by measuring delayed fluorescence and polarizationspectra in glassy dilute solution at 77 K. Strong delayed fluorescence of PVN proves the existenceof triplet energy migration and T-T annihilation in the polymer chain. Efficient intersystem cross-ing of "BP" and efficient energy migration and transfer between chromophores along the polymerchain result in the absence of delayed fluorescence for copolymer P (VN-VBP) studied in this *** order of benzophenone phosphorescence intensity: BP>Co (VBP-St)>PVBP indicates the T-Tannihilation decreasing the phosphorescence of PVBP. Fluorescence and phosphorescence po-larization data of polymers are smaller than that of their model compounds. It is evident that energymigration exists in the polymer chain.

关键词： A study on delay fluorescence and polarization spectra A study on the energy transfer and migration in the molecules of polymeric triplet sensitizers

Preparation and Biological Distribution of New BATOs

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Chinese Chemical Letters 1997年第1期8卷 81-82页

作者： Jing Tao WANG Xiang Yun WANG Yuan Fang LIU(department of Technical Physics- peking university, beijing 100871)(The current address is: institute of photographic chemistry, academia sinica, Bejing 100101) beijing UNIV DEPT TECH PHYSBEIJING 100871PEOPLES R CHINA

Seven new boronic acid adducts of technetium(III) tris(dioxime) (BATO) were prepared and the biodistribution in mice of Tc-99m labelled BATOs were determined. The uptake of 1.62%1D in mice heart at 2 min after injection of (TcCl)-Tc-99m(MeCDO)(3)BMe indicates high myocardial extraction of this BATO. (TcCl)-Tc-99m(MeCDO)(3)BMe shows promise as a myocardial perfusion imaging agent.

关键词： DMG Preparation and Biological Distribution of New BATOs

PHOTOPOLYMERIZATION IN THE MICELLAR SYSTEMS Ⅳ THE PHOTOSENSITIZATION EFFECTS OF THE BENZOPHENONES WITH DIFFERENT CHARGE IN IONIC MICELLAR SYSTEMS

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高分子科学(英文版) 1988年第4期6卷 306-313页

作者：王尔鑑方培基冯新德 institute of photographic chemistry academia sinica department of chemistry peking university beijing beijing

The photosensitization effects of the benzophenone derivatives having different charges, such as cationic BP（BP—CH2—N+ （C2H5）3Br-）（PKT-1）, anionic BP（BP—COONa） and the neutral BP in the various ionic micellar systems were studied. From the photopolymerization of MMA initiated by the various BP/TEA in different micellar systems, the results obtained show that the polymerization rate is in the order of PKT-1>BP>BP—COONa in the SDS anionic micelle. On the contrary, the order changes to BP—COONa>BP>PKT-1 in the CTAB cationic mieelle, and to BP—COONa≈PKT-1>BP in the PKT-3 functional micelle. It is noteworthy that the PKT-1/SDS system is more efficient with its quantum yield more than 50 times compared with that of simple BP/H2O system.

关键词： Photopolymerization Functionalization Surfactant.

PHOTOPOLYMERIZATION IN THE MICELLAR SYSTEMSⅡ THE CATALYSIS OF PKT FUNCTIONAL MICELLE

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Chinese Journal of Polymer Science 1988年第4期6卷 299-305页

作者：王尔鑑方培基冯新德 institute of photographic chemistry academia sinica department of chemistry peking university beijing

A kind of cationic compounds, having benzophenone end group and various length chain （PKT）（BP-CH2N+R2R’·X-, R&R’ different chain iength alkyl group） were used as photosensitizers. Various BP/TEA systems have been used for study, The efficiency of MMA photopolymerization initiated by them shows PKT>BP in homogeneous water solution and PKT> BP/CTAB in micellar water solution. The results obtained indicate that catalytic effects of PKT type functional micelles are far greater than that of common micelle with the enhancement of polymerization rate over 10 times compared with BP in water solution. The catalytic role, reaction character of PKT, effect of counter ions and retarding effect of oxygen have also been discussed.

关键词： Photopolymerization Functional micelle Benzophenone

A FACILE SYNTHESIS OF 1.2-BISPYRROLEETHYLENS

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Chinese Chemical Letters 1993年第7期4卷 567-568页

作者： Qing Qi CHEN Fang YAN Jin Shi Ma Sheng JIN department of chemistry, peking university, beijing 100871 institute of photographic chemistry, academia sinica, beijing 100101

1. 2-Bispyrroleethylenes can be easily syntnesized bv cc,-,pt}ng pyrrolealdehyde using TiCl_4/Zn as a catalyst. It was found that when the R group is COMe or CO_2 Et, the product is a mixture of trans and cis isomers,... 详细信息

关键词： NH THF SH A FACILE SYNTHESIS OF 1.2-BISPYRROLEETHYLENS CO

SYNTHESIS OF NOVEL SOLUBLE AROMATIC POLYPYROMELLITIMIde CONTAINING ORdeRED 1,2,4-TRIAZINE IN THE MAIN CHAIN

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Chinese Journal of Polymer Science 2002年第3期20卷 219-224页

作者： Xiao-bing Yi Guo-shi Wu feng-cai Lu department of chemistry Tsinghua university, beijing 100084 China institute of chemistry Chinese Academy of Sciences, beijing 100080, China Tsing Hua Univ Dept Chem Beijing 100084 Peoples R China Chinese Acad Sci Inst Chem Beijing 100080 Peoples R China

A new heat-resistant, soluble polymer, poly(phenyl-1,2,4-triazine imide), has been prepared via a two-step method of polycondensation of N,N'-bis(4-benzil)pyromellitimide and terephthalamidrazone in cresol, followed by curing at higher temperature. The rigid 1,2,4-triazine group increases the solubility of the polyimide so that the polymer is soluble in cresol, N-methyl-2-pyrrolidone (NMP), trifluoroacetic acid and concentrated sulfuric acid, etc. Thermogravimetric analysis (TGA) indicates that this novel polyimide has good thermal stability with a high decomposition temperature of 447degreesC in air and of 423 degreesC in N-2, It has a tensile strength of 107.4 MI'a with an elongation at break of around 7.6%.

关键词： polyimides N,N '-bis(4-benzil)pyromellitimide rigid-rod group 1,2,4-triazine

Measurement　of　the　First　Hyperpolarizability　of　Substituted　Ketene　N，S－acetals　by　Hyper－Rayleigh　Scattering　in　Solution

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Chinese Journal of Lasers 1995年第5期B4卷 431-438页

作者： GAO xingyu CHEN Jingbiao WANG Congfang ZOU Yinghua (department of Physics, peking university, beijing 100871, China)ZOU Yue feng Jun LI Jisheng YE Cheng (institute of chemistry, academia sinica, beijing 100080,China) peking Univ Beijing China

ＭｅａｓｕｒｅｍｅｎｔｏｆｔｈｅＦｉｒｓｔＨｙｐｅｒｐｏｌａｒｉｚａｂｉｌｉｔｙｏｆＳｕｂｓｔｉｔｕｔｅｄＫｅｔｅｎｅＮ，Ｓ－ａｃｅｔａｌｓｂｙＨｙｐｅｒ－ＲａｙｌｅｉｇｈＳｃａｔｔｅｒｉｎｇｉｎＳｏｌｕｔｉｏｎＧＡ... 详细信息

ＭｅａｓｕｒｅｍｅｎｔｏｆｔｈｅＦｉｒｓｔＨｙｐｅｒｐｏｌａｒｉｚａｂｉｌｉｔｙｏｆＳｕｂｓｔｉｔｕｔｅｄＫｅｔｅｎｅＮ，Ｓ－ａｃｅｔａｌｓｂｙＨｙｐｅｒ－ＲａｙｌｅｉｇｈＳｃａｔｔｅｒｉｎｇｉｎＳｏｌｕｔｉｏｎＧＡＯＸｉｎｇｙｕ；ＣＨＥＮＪｉｎｇｂ...

关键词： Hyper-Rayleigh scattering first hyperpolarizability

Measurement of Monomer Reactivity Ratios of D,L-3-Methylglycolide with Glycolide or D,L-Lactide

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Chinese Chemical Letters 2000年第9期11卷 815-818页

作者： Chang Ming DONG Kun Yuan QIU Zhong Wei GU xin de feng department of Polymer Science and Engineering, College of chemistry and Molecular Engineering, peking university, beijing 100871 National Research institute for Family Planning, beijing 100081 peking Univ Coll Chem & Mol Engn Dept Polymer Sci & Engn Beijing 100871 Peoples R China Natl Res Inst Family Plannning Beijing 100081 Peoples R China

For monomer reactivity ratios study, the copolymerization of D,L-3-methylglycolide (MG) with glycolide (GA) or D,L-lactide (LA) was carried out in bulk to a certain low conversion in the presence of stannous octoate at 140 degrees C. The copolymer compositions were determined by H-1 NMR spectroscopy. The monomer reactivity ratios were evaluated by Fineman-Ross method, Kelen-Tudos method and linear least-squares method. The monomer reactivity ratios of D,L-3-methylglycolide and glycolide or D,L-lactide are r(mg)= 0.73, r(ga)= 1.47; r(mg)= 1.71, r(la)= 0.92, respectively.

关键词： D,L-3-methylglycolide glycolide D,L-lactide ring-opening copolymerization monomer reactivity ratios

A STUDY ON THE CROSSLINK ABILITY OF DIFFERENT COMPONENTS IN COLLAGEN AND GELATIN

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中国科学院大学学报(中英文) 1997年第2期14卷 188-194页

作者： Fu Xiaomin(Biology department,Graduate School at beijing,university of Science and Technology of China,beijing 100039)Peng Bixian Chen Lijuan(institute of photographic chemistry,academia sinica,beijing 100101) 中国科学技术大学北京研究生院生物学部北京中科院感光化学所北京

The crosslink ability with HCH0 of different components （sub-units） in collagen and gelatin were investigated. We made a series of comparisons between the components. The difference of crosslink ability was discussed. There is no obvious difference between the crosslink ability of α βcomponents in acid soluble collagen and those of the same components in photographic gelatin. The crosslink ability of α2is greater than that of α1: but the crosslink ability of β11is similar to that of β12, and β components have obviously hydroIyzed during crosslink process. This situation happens in components of collagen as well as in components of gelatin.

关键词： collagen gelatin component crosslink CM-52 SDS-PAGE

The Intramolecular Coupling Reaction of 1,6-Bis(1-Alky1-2-Methylindol-3-yl)hexane-1,6-dione Induced by Low-valent Titanium

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Chinese Chemical Letters 1997年第1期8卷 7-8页

作者： Zhen Nian HUANG Sheng JIN Mei Gong FAN(State Key Laboratory of Elemento-Organic chemistry, Nankai university, Tianjin 300071, 2 department ofchemistry, peking university, beijing 100871, 3. institute of photographic chemistry, Academ Sciences sinica Bei State Key Lab. Elemento-Organ. Chem. Nankai University Tianjin 300071 China department of chemistry Peking University Beijing 100871 China institute of photographic chemistry Academ Sciences Sinica Beijing 100101 China

The intramolecular reductive coupling reaction of 1,6-bis(subshtuted indolyl)hexane-1,6-dione using zero-valent titanium reagent as catalyst proderes the novel photochromic 1,2-diheterocyclic cyclohexenes 2, together ... 详细信息

关键词： The Intramolecular Coupling Reaction of 1,6-Bis Alky1-2-Methylindol-3-yl)hexane-1,6-dione Induced by Low-valent Titanium