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(Z)-2-methyl-N-(2-methylpropylidene)propan-2-amine N-oxide (1-bromoethyl)benzne benzaldehyde N-(tert-butyl)-N-(2-methyl-1-phenylpropyl)-N-oxyl1-phenylethyl radical N-(tert-butyl)-N-(2-methyl-1-phenylpropyl)-N-oxyl 📜(1-溴乙基)苯置于碲化氢体系中,用 四氢呋喃,乙醚,环己烷,氘代苯 用作溶剂,化学反应 4.0H,反应生成N-叔丁基-N-(2-甲基-1-苯丙基)-O-(1-苯乙基)羟胺
参考文献:粘度对瞬态自由基和持久自由基之间的耦合和夺氢反应的影响
标题:粘度对瞬态自由基和持久自由基之间的耦合和夺氢反应的影响
摘要:考察了粘度对瞬态自由基与持久性自由基之间进行偶联反应(coup)或夺氢(abst)的自由基终止反应的影响.在一个非粘性的溶剂,如苯(体积粘度η散装<1毫帕.秒),所有研究的专门加上2,2,6,6-四甲基哌啶-1-氧基(tempo)的瞬态自由基与> 99%政变/ Abst选择性,但当粘度增加时coup / Abst降低(在25oc [ η体积= 84 Mpa S]下,Peg400中为89/11 ).虽然体粘度是预测突然/突然变形的好参数在每种溶剂中的选择性,微粘度是更通用的参数.聚(甲基丙烯酸甲酯)(pmma)端基比聚苯乙烯(pst)端基具有更显着的粘度效应,在高粘度介质中(η体积= 3980 Mpa,前者的coup / Abst比下降至50/50)s),而后者保持较高的coup / Abst选择性(84/16).这些结果以及休眠的pmma-Tempo物种与pst-Tempo物种相比具有较
Doi:10.1246/bcsj.20200398
专利信息
专利号:US-2012267111-A1
优先权日:2009-12-30
标题 :Synthesis of Degradable Polymers Downhole for Oilfield Applications
发明人:KHLESTKIN VADIM KAMIL EVICH
权利人:KHLESTKIN VADIM KAMIL EVICH
摘要:A method is given for polymerizing monomers downhole to create well treatment polymers. The monomers each contain two polymerizable groups and a degradable group or groups which allow the polymer to degrade under downhole conditions, for example by hydrolysis. Polymerization downhole allows easier, more precise, placement of polymer. Polymer obtained from monomers pumped downhole may be used, for example, for fluid diversion plugs, isolation plugs, formation consolidation, flowback control, and fluid loss control. Synthesized polymer may form gels, films, solids or other structure in treated wellbores, fractures, and/or formations. After the desired effect is achieved, the deposited polymer degrades and the polymer degradation products dissolve, leaving the wellbore, fracture and/or formation clean, with no damage that might have decreased fluid flow.
专利号:US-6906158-B2
优先权日:2003-03-13
标 题 :Compositions and methods of vinyl oxazolone polymerization
发明人:TULLY DAVID
权利人:IRM LLC
摘要:This invention provides novel methods for synthesis of narrow polydispersity oxazolone-containing polymers via nitroxide-mediated living free radical polymerization, as well as the products and derivatives thereof.
专利号:US-7205161-B2
优先权日:2001-01-10
标 题 :Polymer brushes for immobilizing molecules to a surface or substrate having improved stability
发明人:KLAERNER GERRIT; BENOIT DIDIER; CHARMOT DOMINIQUE; NOMULA SRINIVAS; PIOTTI MARCELO EDUARDO; MAZZOLA LAURA T
权利人:SYMYX TECHNOLOGIES INC
摘要:Sensors for determining the presence and concentration of biomolecules in a biological sample are provided in the form of polymer brushes, which comprise a substrate having a surface modified with a hydrophobic polymer segment, attached to which is a water-dispersible or water-soluble polymer segment having functional groups that bind probes. The method of synthesis of such sensors preferably includes use of controlled free radical polymerization techniques, which allows for controlled architecture polymers to modify the surface of the substrate, and the use of monomers possessing functional groups which do not require activation prior to probe attachment. In this manner functional groups in the polymer chain are removed from the surface, which allows for solution chemistry to be more realistically reproduced with the benefits of a solid bound probe.
专利号:WO-2011081547-A1
优先权日:2009-12-30
标题 :Synthesis of degradable polymers downhole for oilfield applications
专利号:US-6833276-B2
优先权日:1999-07-02
标题:Polymer brushes for immobilizing molecules to a surface and having water-soluble or water-dispersible segments therein and probes bonded thereto
发明人:KLAERNER GERRIT; NIELSEN RALPH B; MANSKY PAUL; BENOIT DIDIER; CHARMOT DOMINIQUE; JANDELEIT BERND; MAZZOLA LAURA T
权利人:SYMYX TECHNOLOGIES INC
摘要:Sensors for determining the presence and concentration of bio-molecules in a biological sample are provided in the form of polymer brushes, which comprise a substrate having a surface that is modified with a water-dispersible or water-soluble polymer segment having functional groups that bind probes. The method of synthesis of such sensors preferably includes use of controlled free radical polymerization techniques, and in particular the use of an iniferter initiator, which allows for controlled architecture polymers to modify the surface of the substrate. In this manner functional groups in the polymer chain are removed from the surface, which allows for solution chemistry to be more realistically reproduced with the benefits of a solid bound probe.
专利号:CA-2786021-A1
优先权日:2009-12-30
标题 :Synthesis of degradable polymers downhole for oilfield applications