查询词典 monomer

In chapter 5, apolymerizable unsymmetric Schiffbase monomer HPVS is synthesized and twocopolymers with styrene are obtained.

单分子催化剂键联到高分子上可以将单分子催化剂的功能和高分子效应结合起来。

Discolouration is due to an increase in the MAn monomer ratio of the increase, the product of an increase in the proportion of MAn, with the reaction of a polymer containing MAn more supercritical carbon dioxide from the medium of precipitation down in the cauldron at the end of a solid block.

变黄是由于增加单体配比中MAn含量的增多，产物中MAn的比例增加，随反应的进行含有MAn较多的聚合物从超临界二氧化碳介质中沉淀下来，在釜底形成块状固体。

It is shown that the optimal experimental conditions are neutralisation level 90%, emulsifying agent usage level 3%; initiator concentration (NH4)2S2O8 0.06%, NaHSO3 0.04%, DMAEMA 0.02%; monomer concentration, 40%, respectively.

结果表明，最佳的实验条件：中和度为90%；乳化剂用量为3%；引发剂占单体的质量分数分别为(NH4)2S2O8 0.06%、DMAEMA 0.04%、NaHSO3 0.02%；单体在水相的质量分数为40%。

Solid content≥30%,cationic, residual monomer≤9%（Brominating methods

固含量≥30%，阳离子性，残单≤9%溴化法

The paper discussed the influences of the melt flow rate,long branched chain and the copolymerized monomer of polyolefin on the melting strength.

考察聚烯烃熔体流动速率、长支链、共聚单体等因素对其熔体强度的影响。

The ideal copolymerizing condition is the concentration of AIBN and PVA of 1%and 0.1%, respectively, at 60℃ with reaction time about 2 hours when the concentration of monomer is 30%.

研究表明，最佳的反应条件是：总单体浓度30％，AIBN占总单体浓度1％，PVA占0.1％，反应温度为60℃，时间为为2h。

In addition, the method for producing an amide-based polymer of the present invention is characterized by homopolymerizing the amide compound or by copolymerizing the amide compound and at least unsaturated monomer copolymerizable with the amide compound.

本发明的制备酰胺类聚合物的方法的特征在于均聚所述酰胺化合物、或共聚所述酰胺化合物和能与酰胺类化合物共聚的至少一种不饱和单体。

In this article, the factors that affect molecular weight and solubility of polyacrylamide are studied and suitable initiator system is selected. The optimum parameters of copolymerizing process are obtained as follows: the molar proportion of acrylamide and sodium acrylate is 7:3, the monomer concentration is 30%, pH value of solution is 12, the oxidizer (K2S2O8) concentration is 0.1%, the reducing agent (NH2CONH2) concentration is 1%, the chain-transfer agent concentration is 0.4%. The initial reaction temperature is 35℃.

讨论了影响聚丙烯酰胺分子量和溶解性能的因素，选取了合适的氧化-还原引发体系，确定了制备超高分子量速溶型部分水解聚丙烯酰胺的优化聚合工艺参数：起始共聚合反应温度为35℃，保持在密闭条件下的共聚合反应2.5h后，再将聚合反应温度升高到55℃，继续反应2h，反应结束；反应溶液单体总浓度：30％，共聚合反应溶液pH值：12，氧化剂K_2S_2O_8：0.1％，还原剂NH_2CONH_2：1％，共聚合反应中两种单体的投料比：丙烯酰胺：丙烯酸钠=7：3，异丙醇链转移剂：0.4％。

Further, the method for producing acrylamide of the present invention is characterized by hydrating acrylonitrile having a concentration of acrolein of 1 ppm or less by a microbial cell containing a nitrile hydratase or a processed product of the microbial cell in an aqueous medium.; Furthermore, the method for producing an acrylamide-based polymer of the present invention is characterized by homopolymerizing the acrylamide or by copolymerizing the acrylamide and at least one unsaturated monomer copolymerizable with the acrylamide.

本发明的制备丙烯酰胺的方法的特征在于，用含有腈水合酶的微生物的菌体或该菌体处理物使丙烯醛浓度为1ppm以下的丙烯腈在水性介质中进行水合反应。本发明的制备丙烯酰胺类聚合物的方法的特征在于均聚所述丙烯酰胺，或共聚所述丙烯酰胺和能与丙烯酰胺共聚的至少一种不饱和单体。

Styrene degassing tower is one of chief equipments of styrene monomer recover system of StyreneButadiene Rubber device.

苯乙烯脱气塔是丁苯橡胶装置中苯乙烯单体回收系统的主要设备。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新