查询词典 methacrylate

The method is suitable for determining methyl methacrylate and butyl acrylate in the air of workplace simultaneously.

该方法适合工作场所空气中甲基丙烯酸甲酯和丙烯酸正丁酯气相色谱同时测定。

To establish a method for the direct determination of methyl methacrylate and butyl acrylate in the air of workplace by gas chromatography.

目的 建立工作场所空气中甲基丙烯酸甲酯和丙烯酸正丁酯气相色谱直接测定的方法。

Main component of composition of the negative type photoresistive agent is polyimide, which possesses pendent -COOH. Reaction between partial carboxylic acid group and monomer with glycidyl acrylate generates bond junction. Rudimental other part of carboxylic acid group and additional additive component with third amino group and monomer of C=C double bond forms ionic bond junction.

本发明的负型光阻剂组合物的一主要成份为聚亚酰胺其具有悬垂的-COOH且部分的羧酸基与带有环氧基团的丙烯酸酯单体glycidyl(methacrylate反应形成键结，而残留的另一部分羧酸基与另外添加的成份带有第三胺基及C＝C双键的单体形成离子键结。

A series of UV-cured AB crosslinked polymers based on vinyl-terminated polyethylene adipate polyurethane and methyl methacrylate were prepared.

用紫外光聚合方法制备出一系列端乙烯基聚己二酸乙二醇酯聚氨酯和甲基丙烯酸甲酯AB交联聚合物。

Allyl alcohol was used for preparation methacrylate photosensitive polymer with allyl in side chain.The structure of product was confirmed by FTIR and 1HNMR spectroscopy,and the molecular weight of the terpolym...

用FT-IR和1HNMR图谱确认了结构，用凝胶色谱测定其相对分子质量，并从引发剂浓度、聚合温度、单体配比等方面进行讨论，同时对其光刻性能进行了研究。

The title nano-sized polymeric microgels were synthesized by emulsion polymerization method,using divinyl benzene as crosslinking agent and methyl methacrylate,hydroxyl ethyl methacrylate,butyl acrylate as monomers.

通过乳液聚合的方法，以二乙烯基苯为交联剂，用甲基丙烯酸甲酯、甲基丙烯酸-β-羟乙酯、丙烯酸丁酯等丙烯酸酯类单体合成纳米尺寸的聚合物微凝胶粒子。

The results indicated that the thermo-stability of the polymers derived from BOEMA was not as good as those derived from TBMA, and the more content of MAA in the compolymers resulted in lower stability. Terpolymer from BOEMA, MAA and St had higher thermo-stability than those from BOEMA, MAA and isobornyl methacrylate or methyl methacrylate.

当树脂中MAA含量较低时，BOEMA与St的共聚物和BOEMA与IBOMA或MMA的共聚树脂相比，表现出更好的热稳定性，分解温度有明显差异(相差30度以上)；另外，湿度对BOEMA的聚合物的稳定性也有很大影响，湿度越高，树脂分解越快。

MATERIALS: Ethylene glycol methacrylate compound with methyl methacrylate was mixed with NaCl solution to obtain porous hydrogel orbital implant; polyurethane membrane was established using electrospinning method. A volume fraction of 75% ethanol was used to make homologous sclera wrappage.

材料：用甲基丙烯酸-β-羟乙酯和甲基丙烯酸甲酯的聚合物单体加入NaCl成孔剂制备多孔水凝胶义眼台；静电纺丝法制备聚氨酯包裹膜；体积分数为75%乙醇浸泡制备同种异体巩膜包裹物。

In this thesis, narrow polydispersity glycidyl methacrylate based di- and tri-block copolymers, with self-catalysis and self-initiation behaviors by incorporation of 2- ethyl methacrylate blocks, were synthesized via ambient temperature atom transfer radical polymerization.

本课题通过引入甲基丙烯酸(2-N， N-二乙胺基)乙酯嵌段，采用室温原子转移自由基聚合，合成出分子量分布窄的具有自催化和自引发行为的甲基丙烯酸缩水甘油酯基二嵌段和三嵌段共聚物。

Using N,N′-dimethy-p-toluidineas the catalyst,bisphenol A-glycidyl methacrylate,the resin matrix in most dental composite restorative materials,was synthesized by the reaction of bisphenol A and glycidyl methacrylate,and characterized by FTIR,~1HNMR and M S.

以N，N-二甲基对甲苯胺为催化剂，双酚A和甲基丙烯酸缩水甘油酯为原料合成了一种常用的口腔修复材料树脂基质———双酚A双甲基丙烯酸缩水甘油酯，并用FTIR1、HNMR和质谱对其结构进行表征。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。