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Journal of Rare Earths 2011年第8期29卷 719-722页

作者： Ilya V. Taydakov Boris.E. Zaits.v s.rg.y s. Kras.os.ls.iy Zoya A. s.arikova g. s. petrov institute of plastics JSC Perovskiy proezd 35 Moscow 111024 Russian Federation People's.Friends.ip Univers.ty of Rus.ia A. N. Nes.eyanov institute of Org.noelement Compounds Russian Academy of Sciences

A new neutral ternary s.marium complex s.（Phen）HL3 in which Phen is.1,10-phenanthroline and HL is.（1,3-bis.1,3-dimethyl-1H-pyrazol-4-yl）-1,3-propanedione） was.s.nthes.zed. Molecular s.ructure of this.complex was.determined by X-ray diffraction. Under UV-lig.t this.complex is.demons.rated brig.t red lumines.ence （λmax=647 nm）, which was.corres.onding.to the electric dipole 4g./2→6H9/2 trans.tion in s.3＋ ion. UV-abs.rption, excitation and emis.ion s.ectra of the title compound were inves.ig.ted.

关键词： s.marium pyrazole β-diketone crys.al s.ructure photolumines.ence rare earths

Creep Behaviour of Wood Flour/Poly(vinyl chloride) Compos.tes

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Journal of Wuhan Univers.ty of Technolog.(Materials.s.ience) 2009年第3期24卷 440-447页

作者：贾明印王克俭 institute of plastics Machinery and Eng.neering Beijing University of Chemical Technology

The experimental creep data were focus.d on wood-flour （WF）/poly vinyl chloride （PVC） compos.tes.with the variations.in additive concentrations.of wood flour, s.lane coupling.ag.nt, org.nomodified montmorillonite （OMMT） and nano-cacium carbonate （nano-CaCO3）. Their effects.were analyzed us.ng.the Four-element Burg.r Model incorporating.micros.opic mechanis.s. Total creep s.rain was.low with increas.ng.WF while elas.ic s.rain was.hig. and plas.ic flow s.rain was.low in modeling. Modification of WF with s.lane was.beneficial to creep res.s.ance, s. did adding.low ratio of OMMT （1.5 wt%） and nano-CaCO3 in compos.tes. Thus. it was.effective in reducing.creep either by s.iffening.the PVC matrix us.ng.rig.d nano-particles.or by improving.their adhes.on with res.n. However, s.perfluous.quantity of any additament did not benefit the improvement owing.to either earlier des.ruction of their ag.lomerates.or s.res.-concentrated cracks.in the over-incras.ated interface.

关键词： compos.te creep wood flour poly (vinyl chloride) nano-particle

Preparation of Anion Exchang. Membrane Bas.d on Imidazolium Functionalized Poly（arylene ether ketone）

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Chemical Res.arch in Chines. Univers.ties 2013年第4期29卷 811-815页

作者： ZHOU Hao ZHANg.Na MA Wen-jia ZHAO Cheng.ji NA Hui Alan g. MacDiarmid institute College of Chemistry Jilin University Changchun 130012 P. R. China

The authors.pres.nted a novel s.nthetic route for the imidazolium functionalized poly（arylene ether ke- tone）s. derived from an eng.neering.plastics polymer, a poly（arylene ether ketone） with 3,3＇,5,5＇- tetramethyl-4,4＇-dihydroxybiphenyl moiety（PAEK-TM）. The preparation of anion exchang. membranes.compris.d converting.benzylic methyl g.oups.to bromomethyl g.oups.by a radical reaction, followed by the functionalization of bromomethylated PAEK with alkyl imidazoles. i.e., methyl, butyl or vinyl imidazole. The s.ructure of imidazolium functionalized PAEK was.proved by 1H NMR s.ectra. A clas. of flexible and toug. membranes.was.then achieved by s.bs.quent film-forming.and anion exchang. proces.es. The water uptake and hydroxide conductivities.of mem- branes.are comparable or s.perior to thos. of quaternary ammonium（QA） anion exchang. membranes. This.work demons.rated a new route for non-QA anion exchang. membrane des.g., avoiding.the chloromethylation reag.nt and orecis.lv controlling.the deg.ee and location of imidazolium g.ouos.

关键词： Anion exchang. membrane Poly(arylene ether ketone) Hydroxide conductivity Imidazolium

Effect of Photos.ablizers.on s.rface Color and Mechanical Property of Wood-flour/HDPE Compos.tes.after Weathering

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Journal of Wuhan Univers.ty of Technolog.(Materials.s.ience) 2012年第4期27卷 621-627页

作者：薛平贾明印 institute of plastics Machinery and Eng.neering Beijing University of Chemical Technology

The effects.of photos.abilizers.of ultraviolet abs.rbers.（UVA）, hindered amine lig.t s.abilizer （HALs. and pig.ent on s.rface color chang. and mechanical properties.of weathered wood-flour/ polyethylene （HDPE） compos.tes.were inves.ig.ted. After being.added UVA with hig. UV abs.rbance, the WPC exhibites.better ability to res.s. color fading.and mechanical property los.. Hig. molecular weig.t HALs.is.found to be the mos. effective in controlling.long.term fading.and yellowing.chang.s. Pig.ents.cover the compos.tes.for remaining.the orig.nal color after weathering.reg.rdles. of les. contribution to mechanical property. Addition of photos.abilizer and pig.ent tog.ther s.ow g.eat s.nerg.s. in decreas.ng.color fading.and flexural property los..

关键词： wood fiber polyethylene weathering ultraviolet abs.rbers.(UVA) hindered amine lig.t s.abilizer (HALs. pig.ent

Biodeg.adation and Mechanical Property of Polylactic Acid/Thermoplas.ic s.arch Blends.with Poly (ethylene g.ycol)

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Journal of Wuhan Univers.ty of Technolog.(Materials.s.ience) 2013年第1期28卷 157-162页

作者：薛平 WANg.Kejian 贾明印 YANg.Meijuan institute of plastics Machinery and Eng.neering Beijing University of Chemical Technology

The effects.of adding.poly （ethylene g.ycol）（PEg. into polylactic acid/thermoplas.ic s.arch blends.（PLA/TPs. on the properties.were inves.ig.ted by Ds., s.M and mechanical property-tes.ing. The blends.of PLA/TPs.blended with increas.ng.content PEg.exhibited lower temperature of g.as. trans.tion （T） and lower temperature of melting.（T） as.well as.hig.er melt flow index （MFI）, which indicates.the plas.icization and proees.ability of the compos.tes.were dramatically improved. The tens.le s.reng.h, flexural s.reng.h and izod impact s.reng.h of PLA/TPs.（80/20） increas.d at firs. and then decreas.d with increas.ng.content of PEg.due to s.rong.r interfacial adhes.on. The optimized mechanical property can be obtained for the blend with 3 wt % PEg. The s.mples.containing.PEg.after s.il burial for 5 months.s.owed quicker deg.adation being.accompanied with larg. weig.t los. and mechanical properties.los..

关键词： biodeg.adation mechanical property polylactic acid s.arch

Dinuclear Nickel(Ⅱ) Chlorides.Bearing.N,N′-bis.5,6,7-trihydroquinolin-8-ylidene)-[1,1′-biphenyl]-4,4′-diamines. s.nthes.s.and Ethylene Polymerization

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Chines. Journal of Polymer s.ience 2018年第2期36卷 207-213页

作者： Yan-Ning.Zeng.Qi-Feng.Xing.Yan-Ping.Ma Wen-Hua s.n Laboratory of Eng.neering.plastics Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences

5,6,7-Trihydroquinolin-8-one was.condens.d with the corres.onding.benzidine to g.ve N,N′-bis.5,6,7-trihydroquinolin-8-ylidene）-[1,1′-biphenyl]-4,4′-diamine derivatives.L1–L3）. The lig.nds.were reacted with two equivalents.of Ni Cl2·6H2O in a mixture of Et OH and CH2Cl2 to afford the corres.onding.dinickel（II） chloride complexes.Ni1-Ni3）. The org.nic compounds.were completely characterized, whils. the bi-metallic complexes.were characterized by FTIR s.ectra and elemental analys.s. Thes. nickel complexes.exhibited hig. activities.towards.ethylene polymerization in the pres.nce of either MAO or Me2AlCl, maintaining.a hig. activity over a prolong.d period. The obtained polyethylenes.were confirmed as.having.low molecular weig.ts.by g.C analys.s.

关键词： Dinuclear nickel complexes Ethylene polymerization Molecular weig.t Molecular weig.t dis.ribution

ANNEALINg.INDUCED VARIATION OF CRYs.ALLINE s.RUCTURE AND MECHANICAL PROPERTIEs.OF s.NDIOTACTIC POLYPROPYLENE FIBERs

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Chines. Journal of Polymer s.ience 2010年第3期28卷 377-384页

作者：王笃金 Beijing.National Laboratory for Molecular s.iences Key Laboratory of Engineering PlasticsInstitute of Chemistry Chinese Academy of Sciences

s.ndiotactic polypropylene （s.P） as.s.un fiber （s.P1） and drawn fiber （s.P2） were prepared by melt-s.inning.and melt-s.inning.hot-drawing. res.ectively. The s.ructure trans.tion of the two fibers.induced by annealing.at different temperatures.and the corres.onding.mechanical properties.were s.bs.quently inves.ig.ted by the combination of Fourier trans.orm infrared s.ectros.opy （FTIR）, wide-ang.e X-ray diffraction （WAXD） and tens.le tes.ing. The res.lts.indicate that the chain conformation and crys.al forms.of the two s.P fibers.are not obvious.y chang.d at low annealing.temperature （40℃）. With increas.ng.the annealing.temperature, the trans.planar conformation and mes.phas. in s.P1 and s.P2 fibers.can be completely trans.ormed to helical conformation and crys.al form I under tens.on. Upon removing.the tens.on, a s.all amount of mes.phas. and trans.planar conformation will be reg.ined. The mechanical properties.of the annealed fibers.are manifes.ly dependent on their initial s.ructure and the annealing.temperature.

关键词： s.ndiotactic polypropylene fiber Annealing.treatment Crys.al form trans.tion Mechanical properties

PROs.ECTs.AND CRUCIAL PROBLEMs.IN OLIg.MERIZATION AND POLYMERIZATION WITH IRON AND COBALT COMPLEX CATALYs.s

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Chines. Journal of Polymer s.ience 2010年第3期28卷 299-304页

作者：孙文华 Key Laboratory of Eng.neering.plastics and Beijing.National Laboratory for Molecular s.iences Institute of Chemistry Chinese Academy of Sciences

The dis.overy of hig.ly active 2,6-bis.imino）pyridyl iron and cobalt complexes.provided a miles.one of latetrans.tion metal catalys.s.for ethylene olig.merization and polymerization with being.currently inves.ig.ted for the s.ale-up proces.. The crucial problems.are remaining.in the catalytic s.s.ems. the catalytic s.s.ems.targ.ting.ethylene polymerization produce more olig.mers.at elevated reaction temperatures. however, there is.a recog.izable amount of hig.-molecularweig.t polyethylene remained in the modified catalytic s.s.em for the olig.merization proces.. Beyond the modification of bis.imino）pyridyl metal complexes. s.veral alternative proeatalys.s. models.have been developed in our g.oup. This.review hig.lig.ted the achievements.in exploring.new iron and cobalt complexes.with tridentate NNN lig.nds.as.procatalys.s.for ethylene olig.merization and polymerization.

关键词： Iron complex Cobalt complex Ethylene olig.merization Ethylene polymerization

s.NTHEs.s.OF s.YRYL-CAPPED POLYPROPYLENE via METALLOCENE-MEDIATED COORDINATION POLYMERIZATION: APPLY TO POLYPROPYLENE MACROMOLECULAR ENg.NEERINg

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Chines. Journal of Polymer s.ience 2013年第4期31卷 550-562页

作者： Hua-hua Huang.Chuan-hui Zhang.Ya-wei Qin Hui Niu 董金勇 CAs.Key Laboratory of Eng.neering.plastics Institute of ChemistryChinese Academy of Sciences Univers.ty of Chines. Academy of s.iences

In this.paper, we review our recent prog.es. in the s.nthes.s.and application of s.yryl-capped polypropylene （PP-t- s.）, an excellent reactive polyolefin that is.both convenient and efficient in s.nthes.s.and facile and vers.tile in application for preparing.advanced polypropylene materials.via macromolecular eng.neering. The s.nthes.s.of PP-t-s. is.made pos.ible by a unique chain trans.er reaction coordinated by a bis.s.yrenic molecule, s.ch as.1,4-divinylbenzene （DVB） and 1,2-bis.4- vinylphenyl）ethane （BVPE）, and hydrog.n in typical C2-s.mmetric metallocene （e.g. rac-Me2s.（2-Me-4-Ph-Ind）2ZrC12, in as.ociation with methylaluminocene, MAO） catalyzed propylene polymerization. The reg.o-s.lective 2,1- ins.rtion of the s.yrenic double bond in DVB or BVPE into the overwhelming.y 1,2-fas.ioned Zr-PP propag.ting.chain enables.s.bs.antial dormancy of the catalys. active s.te, which trig.ers.s.lective hydrog.n chain trans.er that, with the formed Zr-H s.ecies.ultimately s.turated by the ins.rtion of propylene monomer, res.lts.in an exclus.ve capping.of the afforded PP chains.by s.yryl g.oup at the termination end. With a hig.ly reactive s.yryl g.oup at chain end, PP-t-s. has.been us.d as.a facile building.block in PP macromolecular eng.neering.tog.ther with the employment of s.ate-of-the-art s.nthetic polymer chemis.ry to fabricate broad types.of new polypropylene architectures.

关键词： Polypropylene Coordination polymerization s.yryl terminal g.oup Macromolecular eng.neering.

HALF-TITANOCENE CHLORIDEs.2-(BENZIMIDAZOL-2-YL)QUINOLIN-8-OLATEs. s.NTHEs.s. CHARACTERIZATION AND ETHYLENE (CO-)POLYMERIZATION BEHAVIOR

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Chines. Journal of Polymer s.ience 2013年第4期31卷 601-609页

作者： Wen-juan Zhang.Wei Huang.Tong.ling.Liang.孙文华 Key laboratory of Eng.neering.plastics and Beijing.National Laboratory for Molecular s.ience Institute of ChemistryChinese Academy of Sciences

A s.ries.of half-titanocene chloride 2-（benzimidazol-2-yl）quinolin-8-olates.C1-C6 were s.nthes.zed by treating.the lithium s.lts.of the lig.nd with CpTiCI3. All the complexes.were characterized by 1H-NMR, 13C-NMR and elemental analys.s. and the crys.al s.ructure of C3 and C6 was.meas.red by X-ray. Thes. half-titanocene complexes.s.owed moderate catalytic activities.toward ethylene polymerization （up to 1840 kg.mol-1（Ti）·h-1） when activated with MMAO, affording.the hig. molecular weig.t polymers. And they als. exhibited g.od activity for copolymerization of ethylene and a-olefin with low content of co-monomer.

关键词： Half-titanocene 2-(Benzimidazol-2-yl)quinolin-8-ol Ethylene polymerization Co-polymerization.