Ring-opening reaction是什么意思

网络释义

用法例句

Potassium maleate-containing ionomers were prepared by ring-opening reaction of epoxidized styrene-butadiene-styrene block copolymer(SBS).

用环氧化(苯乙烯-丁二烯-苯乙烯)嵌段共聚物(SBS)开环反应合成了含顺丁烯二酸钾基的SBS离聚体,考察了离子基团不同含量对含顺丁烯二酸钾基的SBS离聚体力学性能的影响,研究了离聚体/聚丙烯(PP)共混物的力学性能和耐溶剂性能,以及离聚体对氯醇橡胶(CHR)/SBS共混物的增容效果。

Epoxidized styrene-butadiene-styrene triblock copolymer(ESBS) can react with potassium hydrogen maleate by ring-opening reaction in the presence of phase transfer catalyst and ring-opening catalyst.

利用环氧化苯乙烯-丁二烯-苯乙烯嵌段共聚物(ESBS)的环氧基与顺丁烯二酸氢钾(HKM)在相转移催化剂和开环催化剂存在的条件下开环反应制得钾离聚体。

Sodium sulfonated SBS ionomer was made from epoxidized styrene-butadienestyrene triblock copolymer(ESBS) and NaHSO_3 by ring-opening reaction in the presence of phase transfer catalyst,ring-opening catalyst and pH value regulator.

结果表明,ESBS开环反应制备磺酸钠离聚体的最佳条件为:ESBS在甲苯中的质量浓度为12 g/100 mL;n(NaHSO3)/n(Epoxy)=1。

Ab initio study on the ring opening reactions of cyclopropymethanide and cyclobutylmethanide;

环丙烷及环丁烷甲基化合物开环反应机理的从头算研究

Their ring opening reactions can be used for preparing polyfunctional or other cyclic compounds.

环氧烷化合物的开环反应可以用来合成其它方法难以合成的多官能团化合物 ,或通过开环和修饰合成其他环状化合物。

This article reviews the ring opening reaction of five membered nitrogen containing heterocyclic compounds.

综述了近年来各种五元氮杂环的开环反应及其在有机合成中的应用。

The present work use a new-type anode, lead dioxde membrane electrode,for electron-chemically oxidizing calcium lignosulfonate, and discuss the effects of pH value, electrolysisvoltage and charge amount on aromaic ring-opening reaction of lignin during the process of elec-tro-oxidation, Some conclusions are obtained from the results.

用一种新型电极—PbO2膜电极作阳极对本质素磺酸盐溶液进行电氧化反应，研究中发现在电氧化过程中木质素磺酸盐除发生分子链断裂之外，芳香环开环反应也很显著。

It was found that the ring opening polymerizations of epoxide based monomers with THEIC can be carried out in a heterogeneous medium smoothly.

以1,3,5-三羟乙基异氰脲酸酯(THEIC)为引发剂、三氟化硼乙醚络合物为催化剂,环氧化合物为环单体,进行了阳离子开环聚合反应的研究。

Oxidation of Olefins Catalyzed by AuCl and the Selective Ring-Opening Reaction of Oxaziridine;

AuCl催化的烯烃氧化反应和氮杂氧三元环的选择性开环反应研究

The Study of Ring-Opening Allylation of Epoxides in Aqueous Media;

水相中环氧化合物烯丙基开环反应研究

Study on a Green Oxidative Ring Cleavage Reaction by Using Aqueous Hydrogen Peroxide;

过氧化氢环境友好性氧化开环反应的研究

Studies and Applications of the Ring Fragmentation of 1, 3-Dithiolancyclopentyl in α-Oxo Cyclicketene-(S, S)-Acetals;

α-羰基环二硫缩烯酮中1，3-二硫戊环的开环反应及应用研究

open-cycle reactor system

开式循环反应堆系统

Tandem Ring-Opening/Closing Reactions of N-Ts Aziridines and Aryl Propargyl Alcohols

氮杂环丙烷和芳基炔丙醇的串联开环关环反应

The Study of New Types Chiral Catalysts for Asymmetric Ring Opening and Ring Closing Terminal Epoxides Reaction;

新型催化剂在手性开环和扣环反应中的应用

Amine-Mediated Ring-Opening and Ring-Closure Reaction of EWG-Activated 2-Methylene-1,3-dithioles;

胺媒介的α-羰基二噻烯的开环—关环反应研究

Emulsion Ionic Ring-Opening Polymerization of Octamethyltetracyclosiloxane

八甲基环四硅氧烷的乳液离子开环聚合反应

Ring-Opening Polymerization of Ethylene Oxide Initiated by Sodium Methoxide

甲醇钠引发的环氧乙烷开环聚合反应过程

Study on the Ring-Opening Polymerization of Ethylene Oxide and Propylene Oxide;

环氧乙烷和环氧丙烷的开环聚合反应与产物性能研究

The process of ring opening reaction is proved through analyzing aminating mechanism by IR and NMR.

利用红外及核磁共振碳谱分析了胺化反应机理,证明是开氧环反应。

Kumada Cross Coupling Reaction and Ring Opening Polymerization of ε-Caprolactone Catalyzed by Iron Compounds;

铁化合物催化的Kumada偶联反应、己内酯开环聚合反应研究

Theoretical Studies on the Mechanisms of Methanol-assisted Ring-opening Polymerization of Lactide and Au-Catalyzed Cycloisomerization and Cyclization Reactions

甲醇协助丙交酯开环聚合反应以及金催化环异构化和环化反应机理的理论研究

The products′ separation process in propylene epoxidation reaction is developed in this paper.

开发了丙烯环氧化反应产物的分离工艺流程.

Ring-opening Polymerization of ε-caprolactone Catalyzed by Thermophilic Esterase;

嗜热酯酶催化ε-已内酯开环聚合反应的研究

When considering this response it is convenient to look at closed-loop and open-loop control situations separately.

在研究这一反应时，分别观察闭环和开环操纵情况是方便的。

The aziridinium ions must all be opened by a concerted process.

亚胺基杂环丙烷季铵盐的阳离子，一定是按协同反应的方式开环的。