聚乙烯醇

G. the perfumes. The wall forming materials were TDI (2, 4-toluene diisocyanate) or 80/20TDI, triphenyl methane triisocyanate and biphenyl methane-4, 4-diisocyanate , Poly vinyl alcohol was used as protective colloid and GPE2040 was used as the emulsifier.

壁材单体分别使用了2，4-甲苯二异氰酸酯、80／20-甲苯二异氰酸酯、三苯基甲烷-4，4′，4-三异氰酸酯和二苯甲烷-4，4′-二异氰酸酯；保护胶体是聚乙烯醇；乳化剂是聚醚2040；催化剂使用二月桂酸二丁基锡。

Based on the formation of a multicomponent complex among mercury, portassium iodide , xylenol orange and metallothionein well distributed in pH2.5 buffer solution, a new detection method is established for MTs under the existence of Arabirgum-polyvinyl alcohol-124 as a steady agent.

在pH2.5的缓冲溶液中，非离子表面活性剂聚乙烯醇-124存在下，体系在505nm处共振光散射增强最大，且共振光散射增强的强度与MTs的加入量成线性关系，检出限21.58ng/ml，线性范围0.072~6.3μg/ml，相关系数0.9949，相对标准偏差3.67%~5.61%，平均回收率91.0%(n=6)。

Methods for calculating the acetalization degree and the ratio of 1,2-and 1,4-additions according to the results of chemical analysis have also been suggested.

还提出了根据化学分析结果计算聚乙烯醇缩丁烯醛的缩醛度以及这两种加成方式的分率的方法。

The increasing of crosslinking extent in polyvinyl butenal had more contribution to adhesive strength of its aqueous solution than enhance of the acetalization degree.

在聚乙烯醇缩丁烯醛中发现，交联程度的提高比缩醛度的提高对其水溶液粘接强度的影响更大。

The paper introduces the formula, process and tensile strength of the organic-inorganic composite adhesive which is prepared by mixing acetalization of polyvinyl alcohol with silicasol.

叙述了以聚乙烯醇为原料，经缩醛化后和硅溶胶制备有机—无机复合粘合剂。介绍了配方、备程序和拉伸粘结强度的试验结果。

GA and BASANa were used as cross-linkers and a donor of hydrophilic groups (-SO3H), which they both crosslinked to PVA chains for the acetalization reaction.

GA和BASANa皆接在聚乙烯醇链上产生acetalization反应，并分别当做交联剂和提供磺酸根基(-SO3H)的亲水基。

Chemical experiments and carbon nuclear magnetic resonance studies showed that there were two addition manners,l,2-and l,4-additions when α-butenal,as an unsaturated aldehyde,conducted an acetalization reaction with polyvinyl alcohol.

化学分析法及碳核磁共振研究表明，作为不饱和醛的α-丁烯醛与聚乙烯醇在水溶液中进行缩醛化时存在着 1，2-加成与1，4-加成两种反应方式。

The introduction of amido groups can efficiently increase the water swellability of polyvinyl alcohol film and simultaneously enhance the adsorbability of the film to heavy metal ions.

胺基的引入有效的增强了聚乙烯醇膜的水溶胀性，同时使得膜对重金属离子的吸附能力有很大的提高。

Polyvinyl alcohol amidoxime chelate fiber was synthesised by pre irradiation graft copolymerization and amidoximation.

利用60Co－γ射线预辐照接枝和胺肟化反应合成了含羧基的聚乙烯醇胺肟螯合纤维。

Objective: To study the antiasthmatic effect of n-butylidene phthalide for transdermal administration in guinea pigs.

目的：探讨正丁烯呋内酯制成聚乙烯醇凝胶贴片透皮给药对豚鼠的平喘作用。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。