止鏈具 的英文怎麼說
中文拼音 [zhǐliànjù]
止鏈具
英文
chain stopper-
In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液，且其聚合產物具有較高的力學及耐水性能。The analysis of oxidation mechanism indicates that the principal causes of thermal oxidation resistance are as follows : rare earth elements have a function to discontinue autooxidation chain reaction and the formed complex structure can hinder the oxidation resistance
經過氧化機制分析，認為抗熱氧化效應的原因主要是稀土元素具有中止自動氧化鏈式反應的作用以及形成的絡合結構有阻礙氧化的立體效應。We wonder whether these conservative sites determine the tcrv specificity of sed, and whether sed and other ses share the same mode interacting with tcrv. it has been demonstrated that sed and sea have the same sites binding to mhc
有研究表明， sea具有兩個mhc結合位，氨基末端的結合位與mhc的鏈結合，羧基末端的結合位與mhc的鏈結合，阻止sea與mhc鏈結合可影響sea對某些tcrv ~ + t細胞的活化。To stop a hyperlink before it is followed, click stop current jump on the web toolbar
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