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PREPARATION AND PHOTOSENSITIVITY OF WATER SOLUBLE PHENOLIC RESINS CONTAINING ACRYLOYL AND QUATERNARY AMMONIUM CHLORIDE GROUPS 被引量:2
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作者 谭晓明 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2002年第2期129-136,共8页
New water soluble and photocrosslinkable prepolymers containing acrylate and quaternary ammonium salt groups were synthesized from epoxy phenolic resin via ring-opening reaction with acrylic acid and with aqueous solu... New water soluble and photocrosslinkable prepolymers containing acrylate and quaternary ammonium salt groups were synthesized from epoxy phenolic resin via ring-opening reaction with acrylic acid and with aqueous solution of triethylamine hydrochloride successively. The second reaction needs no phase transfer catalyst to accelerate, since the product formed can act as a phase transfer catalyst. The prepolymer obtained contains both photocrosslinkable acrylate groups and hydrophilic quaternary ammonium salt groups. Optimum conditions for these reactions were studied. The photosensitivity of the prepolymer was also investigated. The effects of different photoinitiators, different crosslinkable diluent monomers and amine accelerator on the photosensitivity of the prepolymer were compared. The photoinitiator of hydrogen abstraction type is still effective without using amine or alcohol as accelerator, because the prepolymer contains a H beside the OH groups formed in the ring-opening reactions. 展开更多
关键词 photosensitive polymer PHOTOCROSSLINKING water soluble polymer epoxy phenolic resin quaternary ammonium salt
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FERROFLUID CONTAINING SOLUBLE CONDUCTIVE POLYANILINE AND ITS FREESTANDING FILMS 被引量:1
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作者 万梅香 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2003年第3期271-276,共6页
Ferrofluid containing highly conductive polyaniline (PANI) was prepared, in which soluble PANI solutions dopedwith 10-camphorsulfonic acid (CSA) and dodecyl benzenesulfonic acid (DBSA) were used as the basic solution ... Ferrofluid containing highly conductive polyaniline (PANI) was prepared, in which soluble PANI solutions dopedwith 10-camphorsulfonic acid (CSA) and dodecyl benzenesulfonic acid (DBSA) were used as the basic solution and Fe_3O_4nanoparticles (d = 10 nm) as the magnetic material. Moreover, the freestanding films of the resulting ferrofluid can beobtained by an evaporation method. The electrical and magnetic properties of the ferrofluid or its films can be adjustedthrough changing the content of PANI and Fe_3O_4. High saturated magnetization (≈ 30 emu/g) and high conductivity(≈ 250 S/cm) of the composite films can be achieved when the composite film contains 26.6 wt% of Fe_3O_4. In particular, itwas found that the composite films exhibit a super-paramagnetic behavior (Hc = 0) attributed to the size of Fe_3O_4 particles on the nanometer scale. 展开更多
关键词 FERROFLUID POLYANILINE Electrical and magnetic properties soluble conducting polymers
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One-pot Synthesis of Isoxazolines Using Soluble Polymer-supported Acrylates
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作者 LanTAO PengFeiZHANG YiXinGU 《Chinese Chemical Letters》 SCIE CAS CSCD 2005年第4期440-442,共3页
An efficient and rapid parallel liquid-phase synthesis of isoxazolines has been reported. The one-pot three-component reaction of polyethylene glycol-supported acrylates, aldehydes and hydroxylamine hydrochloride in... An efficient and rapid parallel liquid-phase synthesis of isoxazolines has been reported. The one-pot three-component reaction of polyethylene glycol-supported acrylates, aldehydes and hydroxylamine hydrochloride in the presence of chloramine-T in methanol gave the corresponding PEG-supported isoxazolines, which can be cleaved from the support under mild condition to afford isoxazolines in good yields (>80%) and high purities (>86%). 展开更多
关键词 ISOXAZOLINES 1 3-dipolar cycloaddition soluble polymer liquid-phase synthesis polythylene glycol.
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Alkali metal salts doped pluronic block polymers as electron injection/transport layers for high performance polymer light-emitting diodes 被引量:5
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作者 ZHANG Kai LIU ShengJian +6 位作者 GUAN Xing DUAN ChunHui ZHANG Jie ZHONG ChengMei WANG Lei HUANG Fei CAO Yong 《Science China Chemistry》 SCIE EI CAS 2012年第5期766-771,共6页
A series of alkali metal salts doped pluronic block copolymer F127 were used as electron injection/transport layers (ETLs) for polymer light-emitting diodes with poly[2-(4-(3′,7′-dimethyloctyloxy)-phenyl)-p-phenylen... A series of alkali metal salts doped pluronic block copolymer F127 were used as electron injection/transport layers (ETLs) for polymer light-emitting diodes with poly[2-(4-(3′,7′-dimethyloctyloxy)-phenyl)-p-phenylenevinylene] (P-PPV) as the emission layer. It was found that the electron transport capability of F127 can be effectively enhanced by doping with alkali metal salts. By using Li2CO3 (15%) doped F127 as ETL, the resulting device exhibited improved performance with a maximum luminous efficiency (LE) of 13.59 cd/A and a maximum brightness of 5529 cd/m2, while the device with undoped F127 as ETL only showed a maximum LE of 8.78 cd/A and a maximum brightness of 2952 cd/m2. The effects of the doping concentration, cations and anions of the alkali metal salts on the performance of the resulting devices were investigated. It was found that most of the alkali metal salt dopants can dramatically enhance the electron transport capability of F127 ETL and the performance of the resulting devices was greatly improved. 展开更多
关键词 polymer light emitting diodes water/alcohol soluble polymer doping alkali metal salts electron transport layer
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Soluble and Degradable Polyimides with Phenyl-2-pyridyl Ether Structure:Synthesis and Characterization 被引量:1
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作者 杨逢春 Jing Wang +3 位作者 Lin Chen Xin Wang Xiang-yu Chen 张欣 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2015年第3期481-489,共9页
A diamine monomer o-phenylenedioxybis(5-amino-2-pyridine) was synthesized via reduction of a dinitro compound o-phenylenedioxybis(5-nitro-2-pyridine), producing a series of new polyimides from this diamine and var... A diamine monomer o-phenylenedioxybis(5-amino-2-pyridine) was synthesized via reduction of a dinitro compound o-phenylenedioxybis(5-nitro-2-pyridine), producing a series of new polyimides from this diamine and various commercially available aromatic dianhydrides via conventional two-stage processes. The resulting polyimides are able to form tough and transparent films, with decomposition temperatures in the range of 529-551 ℃, and can be dissolved in organic polar solvents. Meanwhile, these polyimides can be degraded in a hydrazine hydrate medium, a degradation mechanism proposed by analyzing the degradation products suggests that the degradable properties could be attributed to the phenyl-2-pyridyl ether structure in the polymer. In addition, the transformation of the compound structure from dinitro compound to damine monomer in the synthetic process is discussed in respect to X-ray structure. 展开更多
关键词 Monomer structure Polymer solubility Degradable polyimide.
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Soluble Polymer-Supported Synthesis of Pyrazoles via 1,3-Dipolar Cycloaddition Strategy
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作者 林旭锋 王彦广 丁寒锋 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2004年第5期415-418,共4页
Rapid parallel liquid-phase synthesis of pyrazoles has first been developed. The 1,3-dipolar cycloaddition be-tween nitrilimines generated in situ and soluble polymer-supported alkynyl or alkenyl dipolarophiles in par... Rapid parallel liquid-phase synthesis of pyrazoles has first been developed. The 1,3-dipolar cycloaddition be-tween nitrilimines generated in situ and soluble polymer-supported alkynyl or alkenyl dipolarophiles in parallel one-pot fashion gave the corresponding PEG-supported regioisomeric pyrazoles or regiospecific pyrazolines. The latter was assuredly oxidated by DDQ to PEG-supported regiospecific pyrazoles. Cleavage from the support under mild conditions afforded pyrazoles in good yields and high purity. 展开更多
关键词 PYRAZOLE 1 3-dipolar cycloaddition soluble polymer liquid-phase synthesis combinatorial chemis-try
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The Use of Soluble Polymer in Enzyalc Reactions
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作者 K.Matsumoto M.Okudomi +2 位作者 N.Chihara K.Ageishi T.Yanada 《复旦学报(自然科学版)》 CAS CSCD 北大核心 2007年第5期613-,共1页
1 Results Enzyme-mediated kinetic resolution of racemic esters is one of the practical methods for the preparation of optically active compounds. In the reaction process, the products and the substrates could be separ... 1 Results Enzyme-mediated kinetic resolution of racemic esters is one of the practical methods for the preparation of optically active compounds. In the reaction process, the products and the substrates could be separated mainly by column chromatography. The most tedious and wasteful purification step is the bottleneck to a sustainable production. We already reported enantioselective hydrolysis of poly(ethylene glycol)(PEG)-supported carbonates which were soluble in some kinds of solvent[1-2]. Here, we ... 展开更多
关键词 soluble polymer enzymatic hydrolysis SPACER PEG
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Poly-N-benzylaniline prepared in perchloric acid——a new soluble semiconducting polymer
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作者 LI,Zhuang DONG,Shao-Jun Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022 《Chinese Journal of Chemistry》 SCIE CAS CSCD 1992年第4期295-303,共0页
Chemical or electrochemical oxidation of N-benzylaniline in perehloric acid solution yields a highly colored polymer——poly-N-benzylaniline (PBAn).The polymer has good solubility in a num- ber of organic solvents in ... Chemical or electrochemical oxidation of N-benzylaniline in perehloric acid solution yields a highly colored polymer——poly-N-benzylaniline (PBAn).The polymer has good solubility in a num- ber of organic solvents in either acid or base form.At room temperature,conductivity measurements on pressed pellets of the acid form PBAn give a conductivity of 9.3×10^(-6) S·cm^(-1).The soluble polymer was analyzed using a variety of common experimental techniques including UV-vis,IR,NMR,ESR spectroscopy,elemental analysis and electrochemieal analysis.All experimental results showed that PBAn has a structure similar to polyaniline with the elimination of some benzyl groups. 展开更多
关键词 Poly-N-benzylaniline prepared in perchloric acid ACID a new soluble semiconducting polymer
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A novel crosslinkable electron injection/transporting material for solution processed polymer light-emitting diodes 被引量:4
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作者 LIU ShengJian ZHONG ChengMei +3 位作者 ZHANG Jie DUAN ChunHui WANG XiaoHui HUANG Fei 《Science China Chemistry》 SCIE EI CAS 2011年第11期1745-1749,共5页
A novel crosslinkable water/alcohol soluble conjugated polymer PFN-C containing oxetane groups and aminoalkyl groups in the side chains has been developed and used as highly efficient electron injection and transporti... A novel crosslinkable water/alcohol soluble conjugated polymer PFN-C containing oxetane groups and aminoalkyl groups in the side chains has been developed and used as highly efficient electron injection and transporting material for polymer light-emitting diodes (PLEDs). The unique solubility in polar solvents and crosslinkable ability of PFN-C render it a good can- didate for solution processed multilayer PLEDs. It was found that PFN-C can greatly enhance the electron injection from high work-function metal cathode, due to its pendant amino groups. As a result, PLEDs with PFN-C/Al cathode exhibited compara- ble device performance to the devices with Ba/Al cathode. The resulting green light-emitting device showed promising perfor- mance with a maximum luminance efficiency of 13.53 cd A-1. 展开更多
关键词 polymer light-emitting diode cross-linkable electron-transporting material water/alcohol soluble conjugated polymer
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