CAS: 26681-88-9; Phenyldivinylphosphane

相似化合物

7072-01-7 104013-25-4 860585-01-9

上下游产品

vinyl magnesium bromide Dichlorophenylphosphine 2)2(°C)5WPPh(CH=CH2)2 W(CO)5(PPh2H)divinyl phenyl phosphine oxide phenylphosphinebis(diethylphosphino)ethylphenylphosphine bis(2-((2S,5S)-2,5-dimethylphospholanoethyl))phenylphosphine phenylphosphinebis(dicyclohexylphosphino)ethylphenylphosphine

📜苯基膦酸二乙酯,乙烯基溴化镁 以 四氢呋喃 用作溶剂,化学反应生成二乙烯基苯基膦
参考文献:New Superhindered Polydentate Polyphosphine Ligands P(Ch2Ch2Ptbu2)3,Php(Ch2Ch2Ptbu2)2,P(Ch2Ch2Ch2Ptbu2)3,And Their Ruthenium(II) Chloride Complexes
标题:New Superhindered Polydentate Polyphosphine Ligands P(Ch2Ch2Ptbu2)3,Php(Ch2Ch2Ptbu2)2,P(Ch2Ch2Ch2Ptbu2)3,And Their Ruthenium(II) Chloride Complexes
摘要:The Synthesis And Characterization Of The Extremely Hindered Phosphine Ligands,P((Ch2Ch2Pbu2)-Bu-T)(3) ((Pp3Tbu)-P-2,1),Php((Ch2Ch2Pbu2)-Bu-T)(2) (Php(2)P(2)(Tbu),2),And P((Ch2Ch2Ch2Pbu2)-Bu-T)(3) ((Pp3Tbu)-P-3,3) Are Reported,Along With The Synthesis And Characterization Of Ruthenium Chloro Complexes Rucl2((Pp3Tbu)-P-2) (4),Rucl2((Phpp2Tbu)-P-2) (5),And Rucl2((Pp3Tbu)-P-3) (6). The Bulky (Pp3Tbu)-P-2 (1) And (Pp3Tbu)-P-3 (3) Ligands Are The Most Sterically Encumbered Pp3-Type Ligands So Far Synthesized,And In All Cases,Only Three Phosphorus Donors Are Able To Bind To The Metal Center. Complexes Rucl2((Phpp2Tbu)-P-2) (5) And Rucl2((Pp3Tbu)-P-3) (6) Were Characterized By Crystallography. Low Temperature Solution And Solid State P-31{h-1} NMR Were Used To Demonstrate That The Structure Of Rucl2((Pp3Tbu)-P-3) (4) Is Probably Analogous To That Of Rucl2((Pp3Tbu)-P-3) (5) Which Had Been Structurally Characterized.
Doi:10.1021/ic2027169

专利信息

专利号:US-5359016-A
优先权日:1993-03-29
标 题 :Process for the synthesis of styrene-isoprene rubber
发明人：HSU WEN-LIANG; HALASA ADEL F; MATRANA BARRY A
权利人:GOODYEAR TIRE & RUBBER
摘要:The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics. This invention more specifically discloses a process for the synthesis of styrene-isoprene rubbers which comprises copolymerizing isoprene monomer and styrene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) an alkyl tetrahydrofurfuryl ether modifier, wherein the molar ratio of the modifier to the lithitium initiator is within the range of 2:1 to 40:1. The subject invention further discloses a process for the synthesis of styrene-isoprene rubbers which comprises copolymerizing isoprene monomer and styrene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) 2,2-ditetrahydrofurylpropane as a modifier, wherein the molar ratio of the modifier to the lithium initiator is within the range of 1:1 to 40:1.

专利号:US-5336739-A
优先权日:1992-04-06
标题:Alkyl tetrahydrofurfuryl ethers as anionic polymerization modifier in the synthesis of rubbery polymer
发明人：HSU WEN-LIANG; HALASA ADEL F; MATRANA BARRY A
权利人:GOODYEAR TIRE & RUBBER
摘要:It has been unexpectedly discovered that various compounds, such as alkyl tetrahydrofurfuryl ethers, can be used to modify anionic polymerizations of conjugated diene monomers. These modifiers can be used to polymerize isoprene monomer into high 3,4-polyisoprene at excellent polymerization rates. This is in contrast to the modifiers such as tetramethylethylene diamine which are typically used to modify such polymerizations. This invention more specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) a modifier which is an alkyltetrahydrofurfuryl ether selected from the group consisting of ethyltetrahydrofurfuryl ether, propyltetrahydrofurfuryl ether, and butyltetrahydrofurfuryl ether. In the practice of this invention, the utilization of ethyltetrahydrofurfuryl ether is highly preferred since its use results in faster polymerization rates and higher vinyl contents in the resultant polymer.

专利号:US-5448003-A
优先权日:1992-04-06
标题:Synthesis of rubbery polymer using anionic polymerization modifier
发明人：HSU WEN-LIANG; HALASA ADEL F; MATRANA BARRY A
权利人:GOODYEAR TIRE & RUBBER
摘要:It has been unexpectedly discovered that various compounds, such as alkyl tetrahydrofurfuryl ethers, can be used to modify anionic polymerizations of conjugated diene monomers. These modifiers can be used to polymerize isoprene monomer into high 3,4-polyisoprene at excellent polymerization rates. This is in contrast to the modifiers such as tetramethylethylene diamine which are typically used to modify such polymerizations. This invention more specifically discloses a process for the synthesis of 3,4-polyisoprene which comprises polymerizing isoprene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) an alkyltetrahydrofurfuryl ether modifier, wherein the alkyl group in the alkyltetrahydrofurfuryl ether modifier contains from 6 to about 10 carbon atoms. In the practice of this invention, the utilization of alkyltetrahydrofurfuryl ethers having alkyl groups which contain from 6 to 10 carbon atoms, such as hexyltetrahydrofurfuryl ether, is highly preferred since their use does not results in the creation of odor problems.

专利号:US-4965327-A
优先权日:1989-10-23
标 题:Synthesis of polydiene rubber by high solids solution polymerization
发明人：STACHOWIAK ROBERT W; PUCCIO ANTHONY J; EBERHART THOMAS J
权利人:GOODYEAR TIRE & RUBBER
摘要:Synthetic elastomers are typically made commercially by employing emulsion polymerization or solution polymerization techniques. In such solution polymerization techniques, it is desirable to operate at the highest solids content which is practical. As a general rule, it is not practical to prepare such rubbers by solution polymerization at solids contents of higher than about 20 percent. However, the subject invention reveals a technique for preparing such rubbers by high solids solution polymerization at extremely high solids contents. This technique offers substantial advantages associated with eliminating large quantities of organic solvents. The subject invention more specifically relates to a process for the synthesis of polyidene rubber by continuous high solids polymerization which comprises: (1) continuously charging at least one diene monomer, at least one organolithium compound, and from about 4 to about 50 phm of at least one organic solvent into a reaction zone; (2) allowing the monomers to polymerize to a conversion of at least about 90% while utilizing conditions under which there is sufficient evaporative cooling in said reaction zone to maintain a temperature within the range of about 10° C. to about 150° C.; and (3) continuously withdrawing said polydiene rubber from the reaction zone.

专利号:US-6313216-B1
优先权日:2000-09-01
标题:Synthesis of styrene-isoprene rubber
发明人：CHRISTIAN SCOTT MCDOWELL; XU ZHENGFANG; KERNS MICHAEL LESTER
权利人:GOODYEAR TIRE & RUBBER
摘要:This invention discloses a process for synthesizing random styrene-isoprene rubber comprising: (1) continuously charging isoprene, styrene, an initiator, and a solvent into a first polymerization zone, (2) allowing the isoprene and styrene to copolymerize in the first polymerization zone to total conversion of 60 to 95 percent to produce a polymer cement containing living styrene-isoprene chains, (3) continuously charging the polymer cement containing living styrene-isoprene chains and additional isoprene monomer into a second polymerization zone, wherein from 5 to 40 percent of the total amount of isoprene changed is charged into the second polymerization zone, (4) allowing the copolymerization to continue in the second polymerization zone to a conversion of the isoprene monomer of at least 90 percent wherein the total conversion of styrene and isoprene in the second polymerization zone is limited to a maximum of 98 percent, (5) withdrawing a polymer cement of random styrene-isoprene rubber having living chain ends from the second reaction zone, (6) killing the living chain ends on the random styrene-isoprene rubber, and (7) recovering the random styrene-isoprene rubber from the polymer cement, wherein the copolymerizations in the first polymerization zone and the second polymerization zone are carried out at a temperature which is within the range of 70° C. to 100° C., and wherein the amount of styrene charged into the first polymerization zone is at least 2 percent more than the total amount of styrene bound into the rubber.

专利号:US-5173550-A
优先权日:1991-04-05
标题:Synthesis of random styrene-isoprene rubbers
发明人：HSU WEN-LIANG; HALASA ADEL F
权利人:GOODYEAR TIRE & RUBBER
摘要:The subject invention relates to a process for synthesizing random styrene-isoprene copolymers having a medium vinyl microstructure. These random styrene-isoprene rubbers have physical properties which make them highly desirable for utilization in tire tread rubber compounds. The utilization of such random styrene-isoprene rubbers in tire tread rubber results in improved tread wear, rolling resistance and traction characteristics. This invention more specifically relates to a process for preparing a random styrene-isoprene rubber having a medium vinyl microstructure which comprises copolymerizing isoprene and styrene in the presence of (a) at least one organolithium compound and (b) at least one modifier slected from the group consisting of 1,2-dipiperidinoethane, dipiperidinomethane, and tripiperidinophosphine oxide.