查询词典 methylpropane

The hydrophobically associating interactions of the copolymer PASA with acrylamide, styrene derivative and sodium-2-acrylarnido-2-methylpropane sulphonate in aqueous solution were studied by flourescent probe.

通过荧光探针研究了丙烯酰胺-苯乙烯衍生物-2-甲基－2-丙烯酰胺基丙磺酸钠共聚物在溶液中的疏水缔合作用。

For the reaction between divinyl sulfone and N-ethylethylene-diamine or N-methylpropane-1, 3-diamine , no cross-linking occurred when the feed ratio of A〓 to BB'〓 was 1/1. When the feed ratio of DV to NDA or NPA is 3/2, no cross-linking occurred too in organic solvents such as DMSO, DMF and NMP, while cross-linking does occur in water.

对于二乙烯基砜与N-乙基乙二胺或N-甲基-1，3-丙二胺的反应，当加料配比为1／1时，反应在水和有机溶剂中不会凝胶；当配比为3／2时，反应在有机溶剂中亦不凝胶，而在水中反应时，会经过一种&假凝胶&过程，并最终发生凝胶。

The main products are : 2 - Acrylamido--2 - methylpropane sulfonic acidsewage treat agent etc.

主要产品为：2-丙烯酰胺基-2-甲基丙磺酸水处理剂等产品。

A new water-blocking swellable particle with good temperature-tolerance and salt-tolerance was synthesized from acrylamide and 2-acrylamido -2 - methylpropane sulfonic acid , by means of aqueous solution polymerization.

水膨体是近年来中外广泛研究应用的一种调剖堵水剂，但由于陆上油田注水开发地层的复杂性，对其性能的要求也越来越高。

AM - NaAMPS - DEAM terpolymer was synthesized from acrylamide, Sodium - 2 - acrylamido - 2 - methylpropane sulfonate and N,N - diethylacrylamide by free radical initiation copolymerization in aqueous solution.

以丙烯酰胺，2－丙烯酰胺－2－甲基丙碳酸钠，N，N－二乙基丙烯酰胺为单体，通过在水溶液中自由基引发共聚合，合成出了AM－NaAMPS－DEAM三元共聚物。

With the development of oil drilling and the increase of the deep ocean drilling,the requirements of drilling additives were also promoted to satisfy the high temperature resistance and salt resistance.2-Acrylamido-2-methylpropane sulphonic acid is an acrylamid derivatives with -SO3H and -CH2=CH2- in its molecular structure.

随着世界能源需求的增加和钻探技术的发展，向地层深部挺进，向深地层要油气已成必然。在我国，这种现象尤为明显，作为全国石油天然气产量的主力接替区的西部，其石油资源量的73%、天然气资源量的52%都埋藏在深地层。

In this study, new benzo[l,2,3]thiadiazole derivatives were designed according to relationship of structure and efficacy. The 9 novel compounds were synsthesized with following reactions. The chlorine atom in 2-chloro-3,5-dinitro-benzoic acid as beginning raw material was substituted by 2-methylpropane-2-thiol, esterified then with bromoethane, reduced by iron powder and cyclized to obtain ethyl benzo[l,2,3]thiadiazole-7 after diazonation reation.

本论文根据苯并噻二唑诱导剂的构效关系设计了新的苯并噻二唑的结构，并合成了9个未见文献报道的化合物，合成步骤如下：采用2-氯-3，5-二硝基苯甲酸为起始原料，苯环上的氯原子被叔丁基硫醇置换，羧酸由溴乙烷酯化，硝基由铁粉还原，随后经重氮化关环生成苯并[1，2，3]噻二唑-7-羧酸乙酯。

Comb-shaped copolymer of polycarboxylate containing carboxyl,sulfonic groups(-SO3M),polyethylene glycol(-OC2H4-) was synthesized by monomers of sodium 2-acrylamido-2-methylpropane sulphonate,acrylic acid,polyethylene glycol monoester acrylate under certain conditions.

本文通过2-丙烯酰胺-2甲基丙基磺酸钠与丙烯酸、聚乙二醇单丙烯酸酯在一定条件下发生聚合反应合成含有羧基、磺酸基(—SO3M)、聚氧乙烯链(—OC2H4—)等侧链的高性能减水剂PC。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。