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Optimization of polyester condensation process and reactor design;2. The Structure Characters of the Sulfonated Condensation Polymer Series High Performance;3. The pH value of the solution was adjusted,and the co- condensation reaction was taken place between the hydroxy groups forming transparent organic-inorganic hybrid films on polycarbonate.

以甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)水解聚合产物作为主要成膜物质,引入正硅酸乙酯水解产物硅溶胶作为无机增强物,调节两种混合溶液pH值,利用两者羟基之间的共缩聚反应在聚碳酸酯板表面制备有机/无机复合透明耐磨薄膜;采用TG/DTA、FT-IR、SEM及UV-V IS对成膜过程、薄膜性能与结构进行表征。

The results show that: 27 compounds were identified at 600℃, and most of them were alkenes, alkanes, acids, alcohols and phenolic substances; geraniol was identified, and its relative content was 3.6, which shows that geranyl 8-methoxycoumarin-3-carboxylic acid ester can release a certain amount of geraniol at smoke temperature; geranyl 8-methoxycoumarin-3-carboxylic acid ester can improve and modify the flavor, enhance the notes of sweet aroma and bean aroma, and reduce the biting taste of cigarette smoke.

结果表明,600℃时,8-甲氧基-香豆素-3-甲酸香叶酯的热解产物中共鉴定出27种成分,主要为烯类、烷类、酸类、醇类、酚类;鉴定出香叶醇,且相对峰面积3.6,说明8-甲氧基-香豆素-3-甲酸香叶酯能在卷烟燃吸温度下释放出一定量的香叶醇;8-甲氧基-香豆素-3-甲酸香叶酯具有改善和修饰卷烟香气,增加甜韵和豆香香韵,减轻刺激性的作用。

Poly (N-isopropylacrylamide) macromonomer with a styrol end group was prepared by free radical polymerization of NIPAAm.

用链转移自由基聚合和端基置换反应,合成了聚N-异丙基丙烯酰胺热敏性大分子单体。

Using the way of Dirac left and right vector, this paper shows the representation s of Hamilton operator for cyciooctateraene and the relation of the representation and unit vector when taking different unit vector of cy-clooctateraene molecule.

用Dirac左、右矢量符号,讨论了环辛四烯分子采用原子轨道为基矢量,原子轨道两两组合为基矢量时,其Hamilton算符H的表象及基矢量之间的关系。

N-isopropylacrylamide, which has both hydrophilic acylamino and hydrophobic isopropyl, receives much concern in recent years due to its polymers showing favorable thermosensitivity and memory effect. It has been used extensively in drug delivery, material separation, enzyme immobilization and immunoanalysis.

N-异丙基丙烯酰胺同时具有亲水性的酰胺基和疏水性的异丙基,使其系列聚合物具有优良的温敏智能特性和记忆效应,目前已广泛应用于药物缓释、物料分离、免疫分析、酶的固定等领域。

This thesis reported the research of carbonyl allylation and benzylation carded out in aqueous media.

该论文主要研究了纯水作为反应介质时,羰基化合物的烯丙基化和苄基化反应。

Among the existing means to construct these synthetically and biologically important molecules, metal-mediated allylation and propargylation is one of the easiest and most convenient.

在现存的用来构建这些重要的合成子和生物分子的方法中,金属促进的羰基化合物烯丙基化和炔丙基化是最容易和最方便的。

Chapter 4: Synthesis of 1,5-diary 1-1,4-pentadien-3-ones from acetone or benzalacetone with aromatic aldehydes results in 86-97% yield with potassium hydroxide as catalyst under ultrasound irradiation in 5-60min.

为合成氰基环己醇找到一条方便高效的合成方法。第四章:研究了超声辐射下,以氢氧化钾为催化剂,芳香醛与丙酮及亚苄基丙酮之间反应合成1,5-双苄基-1,4-戊二烯-3-酮。

A series of novel chiral aminophosphine ligands with binaphthyl backbone and partially reduced binaphthyl backbone were synthesized from optically pure NOBIN and H〓-NOBIN respectively. The effects of binaphthyl backbone and substitutes at the phosphorous atom on Pd (0)-catalyzed allylation of racemic 1, 3-dipheylprop-2-en-1-yl acetate with dimethyl malonate were systematically investigated.

从NOBIN出发合成了一系列膦上含有不同取代基的氮膦配体MAPs以及含有被部分还原的联萘骨架的氮膦配体H〓-MAPs,将此两类配体运用于钯催化的乙酸1,3-二苯基烯丙基酯与丙二酸二甲酯的反应中,考查了膦上取代基和配体骨架对反应的影响。

Purified water, euphorbia cerifera wax, glyceryl stearate, ammonium acrylates copolymer, butylene glycol, copernica cerifera wax, stearic acid, sucrose acetate isobutyrate, acrylates copolymer, bentonite, tromethamine, hexylene glycol, silk amino acids, cholesterol, glycine, synthetic wax, ethylhexyl glycerin, alanine, PEG-9 dimethicone, nylon-6, lecithin, silica, simethicone, caprylyl glycol, xanthan gum, propylene glycol, isostearic acid, sodium laureth-12 slfate, ceteareth-20, polyvinyl alcohol, sodium chloride, sodium acetate, disodium EDTA, benzyl alcohol, chlorphenesin, phenoxyethanol, methylparaben, ethylparaben, propylparaben, butylparaben, isobutylparaben, may contain /- mica, iron oxides (CI 77491, CI 77492, CI 77499), titanium dioxide (CI 77891), ferric ferrocyanide (CI 77150), ultramarines (CI 77007), blue 1 lake (CI 42090), bronze powder (CI 77400), aluminum powder (CI 77000), bismuth oxychloride (CI 77163), carmine (CI 75740), chromium hydroxide green (CI 77289), chromium oxide greens (CI 77288), yellow 5 lake CI 19140

水,小烛树蜡,硬脂酸甘油酯,丙烯酸铵共聚物,1,3-丁二醇,巴西棕榈蜡,硬脂酸,异丁酸醋酸蔗糖酯,丙烯酸酯共聚物,蒙脱土,二吡喃乙酸乙酯胺,已烯醇,丝氨酸,胆固醇,甘油,合成蜡,异丁基甘油,丙胺酸,PEG-9二甲基硅油,尼龙-6,卵磷酯,硅粉,硅氧烷,癸酰基乙二醇,汉生胶,丙二醇,异硬脂酸,月桂基醚-12硫酸钠,十六十八醇醚-20,聚乙烯醇,氯化钠,醋酸钠,EDTA二钠,苯氧乙醇,氯代苯酚,卞醇,尼泊金甲酯,尼泊金乙酯,尼泊金丙酯,尼泊金丁酯,尼泊金异丁酯,[可能还含有云母,铁黑(CI 77491, CI 77492, CI 77499),钛白粉(CI 77891),氰化亚铁(CI 77150),靛蓝(CI 77007),蓝1号(CI 42090),青铜粉(CI 77400),铝粉(CI 77000),氯氧化铋(CI 77163),洋红色素(CI 75740),氢氧化铬绿(CI 77289),氧化铬绿(CI 77288),黄5号(CI 19140)]文章来自网络,不代表本网站立场,版权归原作者所有,转载请注明出处!

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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意,我建议我们在价格上大家各让一半。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。