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In our previous research, we found lithium ion played a crucial role on the stereoselective tuning of the cyclopropanation reaction of telluronium allylides with α,β-unsaturated esters or amides.

前述工作中,我们发现锂离子对烯丙型碲叶立德和 a , b -不饱和酯、酰胺反应的立体化学控制起着重要的作用。

In chapter four, molecular imprinting polymers against amino acid derivatives utilizing 2-VP+AM as combined functional monomer and trimethylolpropane trimethacrylate as tribasic cross-linker were prepared and result was compared with those with the same amino acid derivative as the imprinted molecules utilizing ethyleneglycol dimethacrylate as dibasic cross-linker. It was found that cross-link intensity of the molecular imprinting polymer is higher when TRIM was utilized and baseline separation for the imprinted molecule could be achieved. When TRIM was utilized as cross-linker more molecule is imprinted during the polymerization.

第四章采用2-乙烯基吡啶+丙烯酰胺复合功能单体,考察了三元交联剂三甲氧基丙烷三甲基丙烯酸酯烙印氨基酸衍生物的情况,并与二元交联剂乙二醇二甲基丙烯酸酯烙印相同氨基酸衍生物的情况进行了对比,发现三甲氧基丙烷三甲基丙烯酸酯交联剂在较小的用量下就可使分子烙印聚合物达到足够的交联度,实现烙印分子的基线分离。

Firstly, the homopolymerization of acrylamide was carried out in aqueous phase by reversible addition-fragmentation chain transfer radical polymerization using a trithiocarbonate as a chain transfer agent.

整个过程分为两步,首先在水溶液中,通过RAFT控制得到亲水性单体丙烯酰胺的均聚物;然后以得到的均聚物作为水溶性的大分子链转移剂,在水相中条件下参与亲油性单体苯乙烯无皂乳液聚合。

The silk fabric s were ingrafted with acrylamide monomer by the radiation of Co-60γradial and then were coordinated by polysaccharid and citric acid solution in order to improve its capability of withstandingness of crease.

以丙烯酰胺为接枝单体,在Co-60γ射线辐照条件下对真丝织物接枝改性,再用壳聚糖柠檬酸溶液对真丝织物复合整理以改善其抗皱性能。

Purpose: To investigate the effects of Acrylamide on the HPRT gene of human promyelocytic leukemia ceils.

目的:为了研究丙烯酰胺对人白血病HL—60细胞HPRT位点的影响作用。

Aiming at the shortcomings of high formaldehyde content and low soaping and crocking fastnesses of currently used pigment printing binder,by60Co-γ radiation polymerization process,the waterborne polyacrylate emulsion containing active keto groups was synthesized from acrylate monomers and diacetone acrylamide.

针对目前所用涂料印花黏合剂存在的色牢度低和甲醛含量高的缺陷,采用钴60-γ辐射法聚合工艺,利用丙烯酸酯单体、双丙酮丙烯酰胺合成出含活性酮羰基的丙烯酸酯乳液;然后同含端酰肼基聚氨酯乳液按一定的比例混合,制备出酮肼交联型丙烯酸酯聚氨酯复合乳液。

Organic our country high polymer flocculant already has commercialized at present having several breeds such as PAM , polypropylene acidamides and carboxyl methyl cellulose only , studies innocuous high-effect organic synthesis high polymer flocculant (the ammonium equality gathers the sum copolymer kind if alkyl alkene propyl group halogenates waiting), optimizes it's the cost reduction composing handicraft.

目前我国有机高分子絮凝剂已商品化的仅有PAM、聚丙烯酰胺和羧甲基纤维素等几个品种,研究高效无毒的有机合成高分子絮凝剂(如烷基烯丙基卤化铵的均聚和共聚物类等),优化其合成工艺降低成本。

AA-AM supper absorbent resin was synthesized from acrylic acid and acrylic amide by inverse suspension method.

对反相悬浮法制备丙烯酸和丙烯酰胺二元共聚高吸水性树脂的工艺进行了研究。

Terpolymer of acrylic acid/acrylic amide/malefic anhydride was synthesized and mixed with polyepoxysuccinic acid in order to improve the scale and corrosion performance of the latter in this study.

为了提高PESA的阻垢缓蚀性能,合成了丙烯酸/丙烯酰胺/马来酸酐三元共聚物,与聚环氧琥珀酸进行物理复配,考察了温度、反应物配比及浓度对复配产品阻垢和缓蚀性能的影响。

Cellulose in pulp is used as a raw material on which acrylic acid and acrylic amide are grafted when superabsorbent is polymerized.

采用纸浆纤维素为分子骨架,接枝丙烯酸及丙烯酰胺制备高吸水树脂。

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推荐网络例句

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。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。