查询词典 vinyl

Reaction (1) was examined with different kinds of acetal substrate(1) and vinyl ethyl ether, and the results indicated that the 1, 1,3-triethoxy compounds could be obtained in high yields of 88 and 97% respectively when the R groups of the acetal are phenyl and anisyl, while the yields amounted only to 55-75 % for R=a...

有证据表明这种催化反应也可能是通过正碳离子中间体进行的。本反应的产物1，1，3-三乙氧基化合物经乙酸/乙酸钠溶液水解可得反式α，β-不饱和醛。水解产率：芳香族产物大于90%，脂肪族产物大于75%。

All chairs in the center section of the dining room are armless, upholstered in beige vinyl seats and backs, with medium colored wood legs and side frame for the back.

在餐厅的中央部分的所有椅子都没有扶手，在米色的座位和靠背上都加有衬垫，有木制色彩适中的椅子脚和背后边框。

The binary composition contains atactic copolymer of styrene and vinyl cyanide in 50-95 wt% and thermoplastic polyurethane in 5-50 wt%.

本发明涉及一种含聚氨酯的热塑性二元组合物，该组合物含有50～95％的苯乙烯―丙烯腈的无规共聚物和5～50％的热塑性聚氨酯。

Poly( N -vinyl-2-pyrrolidone)protected nanoclusters of platinum was used as catalysts in the hydrogenation of m -phenoxy benzaldehydeto form high purity m -phenoxy benzalcohol.

研究了常压下聚N -乙烯基 2 -吡咯烷酮保护的铂金属簇催化剂催化间苯氧基苯甲醛加氢制备高纯间苯氧基苯甲醇的反应。

With its 165cm printing width, the AsterJet 1650 is targeted at the great number of small and medium-sized printing houses that do not want to invest in solvent technology, but still need to broaden their business with printing on media for indoor and outdoor applications such as banner, adhesive vinyl, blueback paper, backlit films and polyester fabrics.

凭借其165厘米打印宽度，AsterJet 1650是针对大量中小规模的印刷厂，不希望投资于溶剂技术，但仍需要扩大与室内和户外媒体应用等印刷业务例如横幅，及时贴，蓝背纸，背光膜和聚酯织物。

Purposes:3-methoxy - Butanoic alcohol used for high boiling point solvents, used nitro - cellulose paint, epoxy coatings, brake oil viscosity regulator, printing ink solvents, cutting oils and dyes, pigments, pesticides, etc will secure vinyl chloride solvent.

用途：3-甲氧基丁醇用作高沸点溶剂，用于硝基纤维素漆、环氧树脂涂料、刹车油粘度调节剂、印刷油墨溶剂，切削油以及染料、颜料、农药、氯乙烯稳妥定剂等溶剂。

With cerous ammonium nitric-ethylene diamine tetraacetic acid as an initiator, and with the protection of the nitrogen the graft-copolymerization of methylacrylic acid and vinyl acetate on chitosan grafting was studied.

以硝酸铈铵－乙二胺四乙酸为引发剂，在N2气的保护下，研究了壳聚糖与甲基丙烯酸和醋酸乙烯酯两种单体的接技共聚反应。

Glycerine, triethanolamine, corn starch and polyvinyl alcohol can be immobilized onto BOPP surface using cerous ions as initiator. Attenuated total reflecteion-FITR and CA results show that vinyl monomers also can be grafted onto polymer surface by cerous ion as initiator.

在D-果糖改性CPP膜的体系中，实验结果显示随着D-果糖初始浓度的增加，改性膜的表面水接触角先下降后略微增加；增加紫外光的辐照强度能够促进D-果糖对CPP膜的表面偶合改性。

This paper deals with making stop bleeding sponge with dried small shrimps. Firstly breaking away with inorganic salt and proteir in the dried small shrimps with acid and NaOH, secondly, taking off vinyl-in the chitin with 50% NaOH, temperature is 110 ℃. the last, reacting with chitosamine and PVA-124 make stop bleeding sponge were produced, catalyst is PdCl 2. The sponge film and sparkce is setatisfaction.

用虾壳经除盐，去蛋白处理后，用50％的NaOH溶液在110℃的温度下脱乙酰基制备壳聚糖；以1∶9的稀醋酸溶作溶剂，氯化钯作催化剂，甲苯二异氰酸酯作发泡剂、交联剂，使壳聚糖与PVA－124进行交联成膜，发泡用氨水洗成中性后在80℃的红外灯烘箱下烘干，制得止血海棉

In the presence of chloroplatinic acid, can easily occur with the addition reaction of vinyl compounds.

在氯铂酸存在下，极易与烯类化合物发生加成反应。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。