丙烯酸

Allyl starch was prepared by etherification pretreatment of introducing allyl groups onto starch, and then AS-g-PMA was synthesized through graft copolymerization between allyl starch and methyl acrylate. The adhesion to fibers, sizing film and sizing performance of the blended size composed of AS-g-PMA and PVA-1799 were investigated. And the possibility by using AS-g-PMA to substitute PVA component was studied by contrast experiments.

摘〓要：通过烯丙基化变性对淀粉进行预处理制取烯丙基淀粉，再与丙烯酸甲酯进行接枝共聚合成接枝淀粉，文章探索了这种接枝淀粉与PVA1799混合浆的黏附、浆膜及浆纱性能，与目标配方进行比较，揭示出AS-g-PMA取代PVA的可能性。

According to the third rotator, neck of femur of rabbits was not broken off;meanwhile, lateral part of greater trochanter was sawed up above the third rotator, entrance of medullary cavity of bone was found among fossas of rotator, and bone cement was perfused into left femoral medullary cavity by blocking of proximal and middle femoral medullary cavity with polymethyl methacrylate to establish the rabbit model.

取大白兔16只，根据兔存在有第3转子这个特殊的解剖结构，采用不打断股骨颈，在第3转子上方横行锯掉大转子外侧部分，在转子间窝找到骨髓腔入口，左侧股骨髓腔内灌注骨水泥，建立单纯以聚甲基丙烯酸甲酯骨水泥阻塞骨干髓腔的兔动物模型。

You can make a fingerprint image on glass more visible by painting over it with some cyanoacrylate adhesive.

您可以作出的指纹图像在玻璃上更为明显，由绘画超过它与一些氰基丙烯酸酯胶粘剂。

Materials include polished stainless steel, chromed steel, powder coating, acrylic "glow poles" with LED lighting effects, Titanium coated and brass.

材料包括抛光不锈钢、铬钢、粉末涂料、有二极管发光效果的丙烯酸、二氧化钛涂层和黄铜。

The graft copolymerization of acrylic acid onto xanthan gum initiated by potassium persulfate in aqueous medium was studied under a nitrogen atmosphere.

以过硫酸钾为引发剂，在氮气保护下，研究了黄原胶与丙烯酸的接枝共聚反应。

It looked much like modern MMA but the combatant would hold a stick in the right hand and punch with the left hand.

它看起来像现代的甲基丙烯酸甲酯，但战斗将持有的右手和冲压用左手一棒了。

Hydrolysed polyacrylamide with a super-high molecular weight suitable for driving crude oil in reservoir is prepared by copolymerization of acrylamide and sodium acrylate.

本文采用丙烯酸钠与丙烯酰胺共聚合的工艺方法生产适用于油田驱油的具有超高相对分子质量的部分水解聚丙烯酰胺。

Unsaturated polyester resins are the most widely used resin type for composites, comprising in excess of 80% of all thermoset resins (others being epoxies, phenolics, acrylics, imides, and urethanes).

不饱和聚酯树脂是复合材料使用树脂类型中应用最广泛的一种，也是热固性树脂最常用的一种（其它种类热固性树脂包括环氧树脂、酚醛树脂、丙烯酸树脂、酰亚胺树脂以及氨基甲酸乙酯）。

For (NH4)2S2O8 initiated ISP system consisted of AA, SPAN emulsifier and kerosine, it was found Rp 1.10.8, Eap=78.8kJ/mol for acrylic acid system and Rp 1.50.6, Eap=57.8-83.7kJ/mol for ammonium acrylate system The value of was negative when , the emulsifier concentration ,was low and became positive when was high for both systems.

用过硫酸铵引发AA类单体、SPAN系列乳化剂及煤油体系的ISP时，对AA体系Rp∝~(1.1)~(0.8)~Y，聚合总活化能为78.8KJ／mol；对丙烯酸铵体系，Rp∝~(1.4)~(0.6)~Y，聚合总活化能为57.6～83.7 kJ／mol，两体系中的γ值在乳化剂浓度较小时为负值，增加到一定程度时为正值。

Reimer, L.,"Scanning Electron Microscopy, Physics of Image Formation and Microanalysis", P. 8 (1998), Springer, Publicated in Berlin, 2nd edition

林信贤，&聚甲基丙烯酸甲酯与蒙脱土奈米复合材料制备及物性分析&，中兴大学化学工程研究所硕士论文 2001

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。