查询词典 methacrylic acid

The introduction of the acrylic or methacrylic acid in middle layer is helpful to obtain a latex with smaller particle size and more narrow particle size distribution.

本文对聚合工艺、乳胶粒中间层分率和软硬单体比例、官能团单体含量等对GAD室温自交联乳液的粒径及分布的影响进行了研究。

Polymer A is a acrylic copolymer containing 70% by weight of methacrylic acid and 30% by weight of methyl methacrylate prepared by a catalytic chain transfer method to give a polymer having a number averaged molecular weight of approximately 600 as measured by GPC.

聚合物A是丙烯酸共聚物其含有甲基丙烯酸重量70％，按重量的30％甲基丙烯酸甲酯的催化链转移的方法准备给予聚合物具有的平均人数约600分子量为由GPC测定。

Methacrylic Acid is one of the most important organic materials, and there is large demand indomestic and international market. The traditional preparation method of MAA has lots of limitation suchas high cost, huge pollution, and virulent raw materials. So its necessary to search a new green route toreplace the ACH route.

甲基丙烯酸是一种重要的有机化工原料，目前国内外对MAA的需求量很大，而传统的丙酮氰醇法制备MAA存在成本高、环境污染大、原料剧毒等缺点，所以需要寻找一条新的绿色工艺路线代替传统工艺。

Methacrylic acid was used as additive for the modification of peroxide-cured styrene-butadiene rubber highly filled with Al3 filler.

将甲基丙烯酸用作Al3填充丁苯橡胶复合材料的添加剂，结果表明，在高填充Al3的SBR中加入MAA可以较大幅度地提高其过氧化物硫化胶的力学性能。

Improvement of the electrical properties of LLDPE compound highly loaded with aluminium hydroxide by grafting methacrylic acid to the matrix is investigated.

本文研究了基体接枝甲基丙烯酸对氢氧化铝Al(OH3填充线性低密度聚乙烯电气性能的改善。

Using the modified electron beam exposure system, we have studied the exposure and developing characteristics of two kinds of resists, which are sensitive for electron beams, polymethylmethacrylate and the copolymer of methylmethacrylate and methacrylic acid P

另外在电镜原有的集成电路试样观察座上设计加工了一个可360°旋转的载物台，载物台X、Y方向移动分辨率为1μm，这样，通过控制工件台和电子束的移动即可实现精密的套刻。

Nano-calcium carbonate （nano-CaCO3） particle was surface modified with methacrylic acid in a medium of ethanol.

在醇相中用具反应活性的甲基丙烯酸对纳米碳酸钙（CaCO3）进行表面处理，制成分散体系。

The system propazine: methacrylic acid was used as a model for the preparation of molecularly imprinted fibers, and its ability to selectively rebind triazines was evaluated.

2-氯-4，6-二-1，3，5-三嗪系统：用甲基丙烯酸做模型制备分子印迹纤维，并对其选择性吸附三嗪化合物的能力进行评估。

The system propazine: methacrylic acid was used as a model for the preparation of molecularly imprinted fibers, and its ability to selectiely rebind triazines was ealuated.

2-氯-4，6-二-1，3，5-三嗪系统：用甲基丙烯酸做模型制备分子印迹纤维，并对其选择性吸附三嗪化合物的能力进行评估。

Such a strategy is based on the direct synthesis of molecularly imprinted polymeric fibers using silica capillaries as molds, with silica being etched away after polymerization. The system propazine: methacrylic acid was used as a model for the preparation of molecularly imprinted fibers, and its ability to selectively rebind triazines was evaluated.

这种技术以二氧化硅毛细管为模型直接合成分子印迹聚合纤维，聚合完成后除去二氧化硅。2-氯-4，6-二-1，3，5-三嗪系统：用甲基丙烯酸做模型制备分子印迹纤维，并对其选择性吸附三嗪化合物的能力进行评估。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。