查询词典 vinyl

Effects of the mol ratio of acrylic acid/vinyl acetate and the churn-dasher on conversion, molecular weight and molecular weight distribution of the obtained polymers were investigated by gravity method and gel permeation chromatography.

通过聚合转化率和凝胶渗透色谱的测定，研究了聚合过程和所制备聚合物的分子量及其分布，以及丙烯酸对聚合物分子量分布的影响；进一步探讨了反应装置的安装及结构对聚合反应的影响。

The slant-hole tray was applied to the technical innovation of vinyl acetate distillation column.

采用复合斜孔塔板对醋酸乙烯精馏塔进行了技术改造。

The resolution of-HMPC in ionic liquids by commercial lipase was studied in the first place and the resolution of-HMPC in vinyl acetate was chosen as control reaction.

首先对商品酶在离子液体中催化拆分的反应条件进行了优化，并以酶在乙酸乙烯酯中的催化作为对照进行了对比。

Major Products: acetic acid, vinyl acetate monomer and value-added derivatives

重要产品：醋酸，醋酸乙烯单体，增值衍生品

We are also the world's largest producer of acetyl products, including acetic acid, vinyl acetate monomer and polyacetal and a leading global producer of high-performance engineered polymers used in consumer and industrial products and designed to meet highly technical customer requirements.

公司在其主要产品市场上拥有首屈一指的市场地位，是世界上最大的乙酰基产品制造商之一，产品包括醋酸、醋酸乙烯和聚甲醛，公司在聚合物领域内也具有世界领先地位。

In this study, the polyethylene vinyl acetate was bended with carbon black to produce the low temperature response positive temperature coefficient elements.

摘要 本实验用EVA和碳黑混炼制备低温正温度系数材料。

The project products meet the national industrial policy, which are widely used in chemical industry, printing and dyeing, chemical, pharmaceutical, textile and food industries, which mainly used to produce vinyl acetate, terephthalic acid as solvent.

本项目产品符合国家产业政策，它广泛用于化工、印染、化肥、医药、纺织和食品等工业部门，它主要用途是生产醋酸乙烯，为苯二甲酸作溶剂。

Factory production of hot melt adhesive has passed SGS environmental protection certification, its main ingredient is one of ethylene vinyl acetate copolymer as the main material, adding tackifier and other ingredients together with solid-type adhesive.

本厂生产的热熔胶已通过SGS绿色环保认证，其主要成分是以乙烯一醋酸乙烯共聚物为主要材料，加入增粘剂与其它成份配合而成的固体型粘合剂。

The options are limitless: Venetian plaster to American Clay, faux painting to color washing, murals and trompe l'oeil to foils and commercial vinyl.

你的选择多得不得了：从威尼斯灰泥到美国黏土，模拟涂饰到刷色，壁画、视幻觉法到箔片与商用乙烯树脂。

The facts influencing the high stereoselectivity were discussed. It is proposed that the stability of the tri- molecular transition state or the stereoelectronic effect of the vinyl anion intermediate formed by the nucleophilic addition of halide anion to the electron-deficient carbon- carbon triple bond might be responsible for the high Z-stereoselectivity.

通过对影响反应的高立体选择性因素的研究，认为反应的三分子过渡态的稳定性或生成的烯基负离子中间体的立体电子效应决定了反应的高度Z立体选择性。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。