CHARACTERIZATION OF POLYMER-SUPPORTED RARE EARTH METAL COMPLEXES AND THEIR CATALYTIC ACTIVITY IN POLYMERIZATION OF CONJUGATED DIENES
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Research Article|更新时间:2021-03-19
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CHARACTERIZATION OF POLYMER-SUPPORTED RARE EARTH METAL COMPLEXES AND THEIR CATALYTIC ACTIVITY IN POLYMERIZATION OF CONJUGATED DIENES
Acta Polymerica SinicaIssue 1, Pages: 39-44(1988)
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Published:20 February 1988,
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LI Yu-liang, OUYANG Jun. CHARACTERIZATION OF POLYMER-SUPPORTED RARE EARTH METAL COMPLEXES AND THEIR CATALYTIC ACTIVITY IN POLYMERIZATION OF CONJUGATED DIENES. [J]. Acta Polymerica Sinica (1):39-44(1988)
DOI:
LI Yu-liang, OUYANG Jun. CHARACTERIZATION OF POLYMER-SUPPORTED RARE EARTH METAL COMPLEXES AND THEIR CATALYTIC ACTIVITY IN POLYMERIZATION OF CONJUGATED DIENES. [J]. Acta Polymerica Sinica (1):39-44(1988)DOI:
CHARACTERIZATION OF POLYMER-SUPPORTED RARE EARTH METAL COMPLEXES AND THEIR CATALYTIC ACTIVITY IN POLYMERIZATION OF CONJUGATED DIENES
In this paper linear hydrocarbon copolymers containing certain amount of function groups were used as the support such as styrene-acrylic acid copolymer (SAAC) and styrene-2-(methyl sulfinyl) ethyl methacrylate copolymer (SMC). The preparation of polymer-supported rare earth metal complexes (SAAC·Nd and SMC·LnCls) and their infrared spectra were described.The catalytic system formed from polymer-supported neodymium complexes shows high catalytic activity and stereospecificity for butadiene polymerization. The catalytic efficiency for SMC.NdCl3-Al(i-C4H9)3 system is twice or triple that of NdCl3.4DMSO system. The cata-lytic efficiency of the ternary system
SAAC.Nd-Ph3CCl-Al(i-C4H9)3
reaches up to 170 kg polybutadiene/g. Nd.hr. The cis-1
4 content of polybutadiene is more than 98%. This system was also used for isoprene polymerization. The cis-1
4 content of the polyisoprene obta-ined is about 95%.
RESEARCH ON POLYMER-SUPPORTED RARE EARTH METAL COMPLEXES VIII. CATALYTIC ACTIVITY OF POLYMER- SUPPORTED BIMETAL COMPLEXES IN THE POLYMERIZATION OF BUTADIENE
EFFECT OF SOME FACTORS OF POLYMER-SUPPORTED NEODYMIUM COMPLEXES ON THE CATALYTIC ACTIVITY IN THE POLYMERIZATION OF BUTADIENE
POLYMERIZATION OF ALKYL ISOCYANATE CATALYZED BY LANTHANUM SCHIFF BASE COMPLEXES
ETHYLENE OXIDE POLYMERIZATION USING THE RARE- EARTH COORDINATION CATALYSTS
COORDINATION POLYMERIZATION OF 1,3-BUTADIENE WITH Ni(naph)2/A1R3/BF3·OEt2/DMEA/OctOH CATALYST SYSTEM