与环己烯法相比，氢气还原法的催化剂用量明显减少，醇羟基数增加较为显著，酚羟基含量基本一致。
Compared with the reaction using cyclohexene as reducer, the dosage of catalyst was obviously reduced, alcoholic hydroxyl increased and the content of phenolic hydroxyl was almost the same.
研究人员发现在啮齿类动物中有一种被称为27-羟基胆甾醇或27HC的小分子，它可与心脏血管内的雌激素受体结合。
The researchers found that in rodents, a molecule called 27-hydroxycholesterol, or 27HC, binds to the same receptors in the blood vessels of the heart to which estrogen binds.
乙二醇迅速地被它氧化，生成草酸和羟基醋酸。
Glycol is oxidized rapidly by it to oxalic and glycolic acids.
烯醇一种有机化合物，包含有与碳原子键连的羟基群，该碳原子反过来又与另一个碳原子双键连接。
An organic compound containing a hydroxyl group bonded to a carbon atom, which in turn is doubly bonded to another carbon atom.
合成了以羟基封端的脂肪族聚碳酸酯-聚乙基醚碳酸酯二醇（PEECD），并用于环氧（EP）树脂的增韧。
One kind of hydroxyl - terminated aliphatic polycarbonate, i. e. poly(ethylene ether carbonate) diol(PEECD) was synthesized and used to toughen epoxy resin (EP) .
以含1 ~4个羟基的有机醇、环氧氯丙烷和有机胺为原料，在催化剂作用下聚合成有机胺改性聚醚(KL - 1)污水处理剂。
The amine-modified polyether KL-1 sewage disposal agent was prepared with organic alcohol containing 1 ~ 4 hydroxy, epoxy chloropropane, organic amine as raw materials by catalyst.
结果，以丙烯醇为起始原料，经加成、酸化、闭环反应，最后经减压蒸馏，成功制得了羟基丙烷磺酸内酯。
Through addition, acidification, closed ring and finally decompressed distillation, hydroxyl propane was made used propenol as initial material.
以混合聚醚多元醇、甲苯二异氰酸酯为主要原料，环氧树脂、羟基丙烯酸树脂为改性剂合成了湿固化聚氨酯涂饰剂。
The moisture cured polyurethane was synthesized with mixing polyether diol, toluene diisocyanate (TDI) as main raw materials, epoxy resin and hydroxy acrylic resin as modifiers.
该压裂液体系以低聚合多羟基醇为稠化剂，有机硼为交联剂，合成了一种释酸剂作破胶剂。
In the system, a polyhydroxy alcohol with low molecular mass is used as thickener, organic boron as crosslinker, and a synthesized acid releaser as gel breaker.
碳原子数目相同的醇，转化率随所含羟基数目的增加而下降。
As to alcohols containing the same number of carbon atoms in the molecules, their conversion will decrease as the number of hydroxy increases.
介绍了用苯甲酸改性的含羟基醇酸树脂和甲苯二异氰酸酯（TDI）预聚物的合成工艺，以及由二者制成醇酸型聚氨酯涂料的方法；
The synthetic process of a prepolymer based on benzoic acid modified hydroxyl alkyd resin and toluene diisocyanate (TDI) prepolymer and the coatings made from this prepolymer has been described.
聚乙烯醇（PVA）是一种性能优良、用途广泛的多羟基聚合物，可从天然气制备，在目前石油资源日渐匮乏的形势下日显重要。
Poly(vinyl alcohol) (PVA) is a multi-hydroxyl polymer, which can be prepared from natural gas, thus becomes more and more important in the situation of petroleum scarcity.
功能聚醚多元醇，是由一些积极的羟基，每个团体分子。
The functionality of the polyether polyol is determined by the number of active hydroxyl groups per molecule.
异氟酸酯、多元醇、硅烷等原材料的选择以及异氰酸酯基与羟基的配比是影响S PU密封胶性能的主要因素。
The selection of raw materials such as iso- cyanate, polyol and silicone etc, and the ratio of isocyanate and hydroxy are the main factors affecting the properties of SPU sealant.
此外还检出了一整套直链一元仲醇同系物，其碳数从10至33，而羟基可在任何理论上可能的碳位上。
Straight chain alcohols range from 10 to 33 with the hydroxyl group at every theoretically possible positions.
以维生素C为催化剂， 对羟基苯甲酸和十六醇及十八醇为原料合成尼泊金十六酯与尼泊金十八酯。
Nipagin esters were synthesized by the esterification of dodecyl and octadecyl alcohol with p -hydroxybenzoic acid in the presence of vitamin C.
设计了以国内生产的间甲酚为原料，经过乙酰化、氯化、再酯化和醇解等四步合成间羟基苯甲醇的合成路线。
A new route to synthesize the target compound starting from m-cresol, which undergoes four steps including acetylation, chloration, esterification, and alcoholysis was proposed.
结果验证了在石墨烯上成功引入各种有机基团，如羟基、羧基、氨基、溴基、长链烷基、聚乙二醇、聚苯乙烯等。
The results demonstrate the successful introduction of various organic moieties on graphene, such as hydroxyl, carboxyl, amino, bromine, long alkyl chain, polyethylene glycol, and polystyrene.
氰醇是合成-氰基醇类，-羟基酮类及酸类化合物的重要生物活性物质，这些化合物又是精细化工、制药和农用化学品领域的重要原料和中间体。
Cyanohydrins are biologically active compounds used in synthesis of - amino alcohols, - hydroxy ketones and - hydroxy acids, which have importance as fine chemicals, pharmaceuticals and agrochemicals.
去离子水、印度醋栗、红石榴提取液、茄红素、丙烯酸共聚物、酵母提取液、无花果精华、对羟基苯甲酸甲酯、咪唑烷基脲、丙二醇、甘油。
Ingredients: Deionized water, amalaki, pomegranate extract, lycopene, acrylic acid copolymer, yeast extract, fig essence, Methyl Paraben, imidazolidinyl urea, propylene glycol and glycerol.
接下来轮到生物高聚物聚羟基脂肪酸酯。而聚氯乙烯(pvc)和聚对苯二甲酸乙二醇酯(PET)则排在了名单的最后。
The biopolymer polyhydroxyalkanoate came next on the list. Polyvinyl chloride (PVC) and polyethylene terephthalate (PET) were ranked last.
在催化剂、链支化剂存在下多元酸和多元醇直接熔融酯化、常压缩聚合成饱和羟基聚酯。
A saturated hydroxy polyester resin has been prepared with polycarboxylic acid and polyol at the presence of catalyst and chain transfer agent by the direct melt esterification process.
以对羟基苯甲酸甲酯、1，4丁二醇为主要原料，经熔融酯交换合成介晶基元双-对羟基苯甲酸丁二醇酯（BBHB）；
Bis(p-hydroxybenzonic acid butanediolate)(BBHB)as mesogenic unit was prepared with methyl p-hydroxybenzoate, 1,4-butanediol and catalyst by melting transesterification.
乙醇（酒精）和甲醇（木醇）是最有名的醇类，含有一个羟基。
Ethanol (grain alcohol) and methanol (wood alcohol) are the Best-known alcohols with one hydroxyl group.
白藜芦醇，3，4’，5-三羟基二苯乙烯，是一种植物抗毒素，常见于葡萄、虎杖和其它一些植物。
Resveratrol, 3,4', 5-trihydroxystilbene, is a phytoalexin found in grapes, Polygonum Cuspidatum and other plants.
介绍了甘油新的开发应用，包括1，3-丙二醇、二羟基丙酮、 1，2-丙二醇和环氧氯丙烷的制备研究及应用。
New utilizations were introduced in this paper, such as 1,3- propanediol, dihydroxy acetone, 1,2- propanediol, epichlorohydrin.
在乙腈、聚乙二醇存在下，8-羟基喹哪啶与硝酸铈铵反应生成标题化合物。
In the presence of acetonitrile and polyethylene glycol, 8-hydroxyquinaldine can react with cerium ammonium nitrate to form 5,7-dinitro-8-hydroxyquinaldine.
这将为油橄榄叶橄榄苦苷酶解制备羟基酪醇的工业化生产提供有效借鉴。
The presented results will provide effective foundation for hydroxytyrosol preparation from oleuropein in olive leaf extract.
这将为油橄榄叶橄榄苦苷酶解制备羟基酪醇的工业化生产提供有效借鉴。
The presented results will provide effective foundation for hydroxytyrosol preparation from oleuropein in olive leaf extract.
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