查询词典 vinyl

Radiation-induced grafting of binary vinyl monomers of styrene/ maleic anhydride, St/ dimethylamino ethyl methacrylate and St/ vinyl acetate onto cotton cellulose was carried out byγ- radiation from a60 Co source at room temperature under nitrogen.

在氮气气氛下用γ线辐照的方法在棉纤维上接枝苯乙烯／来酸酐、乙烯／基丙烯酸二甲胺乙酯、乙烯／酸乙烯酯二元单体。

Radiation-induced grafting of binary vinyl monomers of styrene/maleic anhydride, St/dimethylamino ethyl methacrylate and St/vinyl acetate onto cotton cellulose was carried out by γ-radiation from a 60Co source at room temperature under nitrogen.

在氮气气氛下用γ射线辐照的方法在棉纤维上接枝苯乙烯/马来酸酐、苯乙烯/甲基丙烯酸二甲胺乙酯、苯乙烯/醋酸乙烯酯二元单体。

Radiation-induced grafting of binary vinyl monomers of styrene/maleic anhydride, St/dimethylamino ethyl methacrylate and St/vinyl acetate onto cotton cellulose was carried out by γ-radiation from a 60Co source at room temperature under nitrogen.

闫宇，伊敏，彭金粉，翟茂林*，哈鸿飞摘要：在氮气气氛下用γ射线辐照的方法在棉纤维上接枝苯乙烯/马来酸酐、苯乙烯/甲基丙烯酸二甲胺乙酯、苯乙烯/醋酸乙烯酯二元单体。

On the other hand, a method for the synthesis of-vinyl chalcogenides by the coupling of vinyl bromides with thiols or diphenyl diselenide using copper salts as catalysts in ionic liquids based on amino acids also has been described. The ionic liquids play multiple roles in the reaction: they act as solvent, base, and excellent promoter for the copper-catalyzed coupling reactions.

在新型的氨基酸负离子的离子液体中，开发了一个亚铜盐催化的Z-型溴代烯烃与硫族元素的交叉偶联反应，为立体选择性的制备Z-型烯基硫醚或烯基硒醚类化合物提供了一个新的方法；在此反应体系中，离子液体不仅起到了反应溶剂的作用，而且还起到了金属催化剂的配体和中和反应副产物的碱的作用。

In this thesis, themethod of moments was used in modeling the graft polymerization of vinyl acetatefrom polyethylene glycol and the vinyl/divinyl atom transfer radical copolymerizationwith cross-linking.

本文运用矩方法分别对聚乙二醇接枝醋酸乙烯酯聚合体系和双烯／单烯的原子转移自由基交联聚合体系进行了深入的建模研究。

In China we are halfway there in terms of digital inventory, as OOH advertising was only re-introduced in 1979, in a short time we have 'leap frogged' over the organic stages of OOH development (paper and paste on billboards, to scrolling, to vinyl to some digital) and have moved quickly from vinyl to screen based OOH.

在中国，在实现数字化的量的道路上我们已经走了一半，要知道户外广告在1979年才重新引渗入渗出中国，在很短的时间内我们实现了&飞跃&，跳过了户外广告发展的基本阶段（先是纸质和粘贴式的广告牌，到滚动广告，到胶印广告再到某种程度的数字化），从胶印广告快速过渡到户外数字媒体阶段。

In China we are halfway there in terms of digital inventory, as OOH advertising was only re-introduced in 1979, in a short time we have 'leap frogged' over the organic stages of OOH development (paper and paste on billboards, to scrolling, to vinyl to some digital) and have moved quickly from vinyl to screen based OOH.

在中国，在实现数字化的量的道路上我们已经走了一半，要知道户外广告在1979年才重新引渗透中国，在很短的时间内我们实现了&飞跃&，跳过了户外广告发展的基本阶段（先是纸质和粘贴式的广告牌，到***广告，到胶印广告再到某种程度的数字化），从胶印广告快速过渡到户外数字媒体阶段。

In China we are halfway there in terms of digital inventory, as OOH advertising was only re-introduced in 1979, in a short time we have 'leap frogged' over the organic stages of OOH development (paper and paste on billboards, to scrolling, to vinyl to some digital) and have moved quickly from vinyl to screen based OOH.

在中国，在实现数字化的量的道路上我们已经走了一半，要知道户外广告在1979年才重新引入中国，在很短的时间内我们实现了&飞跃&，跳过了户外广告发展的基本阶段（先是纸质和粘贴式的广告牌，到滚动广告，到胶印广告再到某种程度的数字化），从胶印广告快速过渡到户外数字媒体阶段。

A random copolymer of poly(vinyl acetate-co-isopropenyl acetate) with number-average molecular weight of 9600 and relatively narrow molecular weight distribution （MWD, M w/ M n=2.03）was prepared by free radical copolymerization of vinyl acetate with isopropenyl acetate using AIBN as initiator.

通过自由基共聚合方法，以AIBN为引发剂引发醋酸乙烯酯和醋酸异丙烯酯共聚，得到两者的无规共聚物聚。

In addition, the invention further relates to a catalyzer combination used for polymerizing a conjugated dialkene monomer and the anions of an optional mono-vinyl aromatic hydrocarbon into a polydiene polymer having high and medium vinyl content. The catalyzer combination comprises an organolithium compound used as an anionic polymerization initiator, at least an alkali metal alkoxide compound expressed by the formula as a structure regulator.

此外，本发明还涉及一种用于将共轭二烯烃单体和任选的单乙烯基芳烃阴离子聚合成具有中高乙烯基含量的聚二烯聚合物的催化剂组合物，其包含作为阴离子聚合引发剂的有机锂化合物，和作为结构调节剂的至少一种式所示的碱金属醇盐化合物。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。