丙烯酸

PLA grafted with PAA has been used as material for preparation of particles. Without using surfactant, and with dimethyl acetamide as solvent and with hexane containing 4% isopropanol as precipitation solution, PLA particles have been prepared with a diameter between 700 and 1250 nm.

聚乳酸接枝聚丙烯酸的高分子化合物，用於制备微粒，二甲基乙醯胺为使用之溶剂，己烷及4%异丙醇为所需之沉淀溶液，界面活性剂并未使用，所得微粒平均粒径大小为700-1250 nm。

In particular, methyl acrylate and ethyl acetate are widely used in industry.

丙烯酸甲酯和乙酸乙酯是工业上常用的有机物质，在生产和使用中产生的废气极易造成环境污染。

Decided relatively the craft condition of beautiful: IA occupies total monomer rub Er mark is 22%, 6.67% what cross ammonium sulphate dosage to be total monomer quality, reaction temperature ℃ of 80 ℃~85, acrylic acid and the drop that cross ammonium sulphate add time to be 2.5 H, heat preservation time is 3.5 H, total reaction time is 6 H.

确定了较佳的工艺条件：IA占总单体的摩尔分数为22%，过硫酸铵用量为总单体质量的6.67%，反应温度80℃~85℃，丙烯酸和过硫酸铵的滴加时间为2.5 h，保温时间为3.5 h，总反应时间为6 h。

The results showed that the reaction time was prolonged with the molar ratio of acrylic acid increasing.

结果表明：随着反应物中丙烯酸含量的增加，反应时间延长。

The effects of various amount of molar ratio of acrylic acid to octadecyl alcohol,amount of catalyst and inhibitor,reaction temperature and time on the synthesis were investigated.

研究了丙烯酸与十八醇的摩尔比、催化剂和阻聚剂的质量分数、反应温度及反应时间对反应的影响，并用红外光谱对产物进行了表征。

The effects of various amount of molar ratio of acrylic acid to octadecyl alcohol, amount of catalyst and inhibitor, reaction temperature and time on the synthesis were investigated. The production was further verified with IR.

研究了丙烯酸与十八醇的摩尔比、催化剂和阻聚剂的质量分数、反应温度及反应时间对反应的影响，并用红外光谱对产物进行了表征。

An ester or salt of palmitic acid.

丙烯酸形成的一种盐或脂。

In supercritical carbon dioxide, the Wacker oxidations of acrolein and of acrylic acid were also studied.

在超临界二氧化碳中对其它邻位有吸电子基团的端烯如丙烯醛、丙烯酸的Wacker反应也进行了研究。

One of the main methods to improve the polyurethane integration performance by the acrylate modification.

利用丙烯酸酯对聚氨酯进行改性是提高聚氨酯综合性能的主要手段之一。

Water was produced in the reaction of polyster and acrylic acid.

采用端羟基聚酯与丙烯酸在适当的条件下合成出性能优异的聚酯丙烯酸UV树脂。

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。