甲基丙烯酸

LIN Hailin,CUI Yingde,DU Lin,CHEN JianpingInstitute of Applied Chemistry,Zhongkai University of Agriculture and TechnologySuper water absorbent resins P,SA/NaAA,SA/NaAA/PVA and SA/NaAA/AM were synthesized from sodium alginate,acrylic acid,polyvinyl alcoholand acrylamide,with N,N–methylenebisacrylamide as crosslinking agent,(NH4)2S2O8 - NaHSO3 as initiator,by means of aqueous solution polymerization.

以醚化海藻酸钠、聚乙烯醇、丙烯酰胺、丙烯酸为单体，N， N–亚甲基双丙烯酰胺为交联剂，过硫酸铵-亚硫酸氢钠为引发剂，采用水溶液法制备聚丙烯酸钠p吸水树脂和海藻酸钠/丙烯酸钠、海藻酸钠/丙烯酸钠/聚乙烯醇（SA/NaAA/PVA）及海藻酸钠/丙烯酸钠/丙烯酰胺吸水性复合树脂。

Fixation of direct dyes with silica gel ;2. Taking advantage of proof salt and high hydrophilic property of the silica gel and the carboxymethyl cellulose inarch polysalt of the super water-absorbent resin recombination,this paper made use of the water-absorbent composite form the inorganic polymer, sequentially advanced water-absorbent velocity and capacity of polymer water-absorbent resin in the brine.

利用具有良好耐盐和高亲水性能的硅凝胶与羧甲基纤维素接枝聚丙烯酸盐的高吸水树脂进行复合，制备出无机高分子的硅凝胶-羧甲基纤维素接枝聚丙烯酸盐耐盐高吸水复合材料，从而提高了高分子吸水树脂在盐水中的吸收能力及吸收速度，研究了复合材料的吸盐水性能，通过扫描电子显微镜观察了复合材料表面的微观结构，初步探讨了硅凝胶-羧甲基纤维素接枝聚丙烯酸盐耐盐高吸水复合材料的吸盐水机理。

A series of hydrogels based on macromonomer novolac epoxy vinyl ester resin and hydrophilic-2-hydroxyethyl methacrylate were synthesized by bulk copolymerization.

采用大分子单体酚醛环氧型乙烯基酯树脂与亲水性单体甲基丙烯酸-β-羟乙酯为原料，以本体聚合方法制备了一系列新型水凝胶。

Anion exchange resin ; glycidyl methacrylate ; divinylbenzene ; porogenic diluent ; exchange capacity

阴离子交换树脂；甲基丙烯酸缩水甘油醚；二乙烯基苯；致孔剂；交换容量

Styrene and methacrylate super absorbent oil resin ; tar ; nicotine ; polynuclear aromatics compound

苯乙烯-甲基丙烯酸酯吸油性树脂；焦油；烟碱；稠环芳烃

Aqueous polyurethane ; epoxide resin ; methyl methacrylate ; hybrid emulsions

水性聚氨酯；环氧树脂；甲基丙烯酸酯甲酯；杂合分散体

Such raw materials as waste polyethylent cable particles, pure polyvinyl chloride powder, wood powder, a metallic soap stabilizer, a coupling agent, chlorinated polyethylene and methacrylic acid polyesters and a lubricator are added into and mixed in a high speed mixer according to the formula, and the mixing temperature is 100 to 110 DEG C, the mixing time is 20 to 35 min; the well mixed material is added into an extruder for extrusion, the rotating speed of the mainframe of the extruder is 40 to 60r/min, the rotating speed of a feeding machine is 4 to 6r/min, and the materials are shaped after being extruded.

将废旧聚氯乙烯电缆颗粒、纯聚氯乙烯粉、木粉、金属皂类稳定剂、偶联剂、氯化聚乙烯、甲基丙烯酸多元酯、润滑剂按照配方配制的原料加入高混机中混合，混合温度为100℃～110℃，混合时间为20～35分钟；将混合好的原料加入挤出机中进行挤出，挤出机主机转速为：40～60转/分钟，喂料机转速为：4～6转/分钟；挤出后进行定型。

In the early 1900's, MMA fighting, which featured jujutsu masters versus boxing practitioners, for example, was very popular throughout Japan, Europe and Brazil.

在1900年代初期，甲基丙烯酸甲酯的战斗，其特色柔术大师与拳击从业人员为例，是在日本很受欢迎，欧洲和巴西。

The effect of molecular weight, ethylene group and mixing of polyketone on the photodegradability were investigated. The mechanism of the photodegradation of ESTCO, STCO, STCO-PS and ESTCO-PS were reviewed. In addition, the block polymerization of methyl methacrylate initiated by STCO under UV irradiations was also studied.

研究了乙基取代基、分子量及共混物对聚酮光降解性能的影响，探索了STCO、ESTCO及其分别与聚苯乙烯共混物STCO-PS、ESTCO-PS的光降解行为和光降解机理，初步探讨了聚酮ESTCO光降解所产生的大分子自由基引发的甲基丙烯酸甲酯的聚合。

In this paper, the technics of preparating methylmethacrylate by cracking waste plexiglas and the application were studied.

本文主要对废旧有机玻璃裂解制备甲基丙烯酸甲酯的工艺及其应用进行了研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。