phenolic hydroxyl
英
美
网络 酚式羟基; 酚羟基
双语例句
- Adsorption of Aniline and Benzene on Phenolic Resin Prepared by Inverse Suspension Polymerization and Modified by Phenolic Hydroxyl Group
反相悬浮制备酚羟基修饰酚醛树脂对苯和苯胺的吸附 - In addition, compared with acidic lignin from stalk, aliphatic hydroxyl content of the lignin from pith was higher, phenolic hydroxyl and methoxy content were lower;
另外，与秆部木素相比，髓芯木素中醇羟基含量较高，酚羟基和甲氧基含量较低。 - Three isoflavone compounds are synthesized with hydroxybenzene and phenylacetic acid in the improved method and three isoflavone derivatives are synthesized by modifying phenolic hydroxyl in A-ring.
并以芳基酚和苯乙酸为原料，用一锅煮法合成了三个A环带酚羟基异黄酮化合物。然后对其A环的酚羟基进行结构修饰，分别得到三个新的异黄酮衍生物。 - Antioxidant activity was positive correlated to the number of phenolic hydroxyl groups and the stability of newly formed free radical.
抗氧化活性大小与抗氧化剂分子中酚羟基数目及新生成自由基的稳定性呈正相关。 - Complexans containing aromatic ring and phenolic hydroxyl series
含芳环和酚羟基系列的氨羧络合剂 - A study on chemical modification of thermoplastic resin-etherification of phenolic hydroxyl
热塑性酚醛树脂的化学改性研究&酚羟基醚化 - The results show that the oxidizing degraded products have functional groups such as phenolic hydroxyl, carboxyl ( Ar-CO-O-), methylene and etc., and have no chlorine or hydrocarbon substitute aromatics, aldehyde, ketone and quinone.
结果表明，荆树皮栲胶氧化降解产物的主要官能团有酚羟基、羧基（结构为Ar-CO-O-）、亚甲基等，不含氯代或烃基取代芳烃、醛、酮及醌。 - So the charge density and phenolic hydroxyl density are important in the flocculation of colloidal suspensions.
说明辅助剂的电荷密度和酚羟基的密度对胶体悬浮液的絮凝的重要性。 - Organic antimony compounds ⅰ. the action of antimonous acid on organic compounds containing phenolic hydroxyl group
有机锑化合物Ⅰ.含有酚型羟基团的有机结构和亚锑酸的作用 - We also found that Datong coal contains more phenolic hydroxyl and less carboxyl.
红外分析表明大同煤中羧基含量很少，酚羟基含量较多。 - The thermodynamic parameters of carboxylic group and titrable phenolic hydroxyl group of humic acid are similar to that of simple hydroxy-benzoic acid.
腐植酸的羧基和可滴定的酚羟基在热力学性质上同简单的羟基苯羧酸相似。 - NMR study of proton dissociation processes of two complexans containing phenolic hydroxyl groups
含酚羟基氨羧络合剂质子解离过程的NMR研究 - Determination of the Content of Phenolic Hydroxyl Groups in Lignin and Pulp with FC-Method
FC法测定木素和纸浆中的酚羟基 - The carboxylic groups in hemicellulose and the phenolic hydroxyl and ester groups in lignin are the major bonding sites for copper, as confirmed by FTIR.
另外，经FTIR证实，铜与木材作用时，主要是半纤维素中的羧基团和木质素中的酚羟基及芳基酯基与铜成键。 - The phenolic hydroxyl compounds usually have activity scavenging O-· 2.
酚羟基化合物往往具有清除O-·2作用。 - The alkylation of phenolic hydroxyl group in berbamine
小檗胺酚羟基的烷基化 - And pulping procedures influenced the structural features of residual lignin of pulps including the content of aliphatic and phenolic hydroxyl groups, β_O_4 structures, carboxylic acid groups, and condensed lignin units.
制浆方法影响纸浆残余木素的结构特征，包括脂肪羟基、酚羟基和羧基含量，βO4结构和缩合结构含量。 - Results indicated that contents of carboxyl, phenolic hydroxyl and sulfonic groups decreased with increased M_w.
研究表明，随着Mw增大，羧基、酚羟基、磺酸基的含量减小。 - Because of the construction features which have thiol group and phenolic hydroxyl group and lower of the pH value of the common injection of the clinical used, it has very irritation when it injected.
由于其本身结构特点（含有巯基和酚羟基）和临床使用的普通注射液的pH值偏低（仅为3左右），使得其有很强的刺激性。 - Sodium ferulate ( SF), extracted from DangGui, containing phenolic hydroxyl has the antioxidative activity.
阿魏酸钠（SF）是当归的水溶性单体提取成分，含有酚羟基，具有抗氧化活性。 - Determination of phenolic hydroxyl and carboxyl groups in kraft pulp from Eucalyptus by conductometric titration
电导滴定法测定桉木浆中酚羟基和羧基 - The results showed that the coordination bonds were formed between Y(ⅲ) ions and phenolic hydroxyl group of PUF.
结果表明，三异丙氧钇中Y（Ⅲ）与PUF中酚羟基上的氧形成了配位键； - The results showed that the surface of the activated carbon may contain some functional groups, such as hydroxyl, carboxyl, pHenolic hydroxyl, amino and pHospHorus-containing functional groups etc, part of the carbon atom formed relatively stable lamellar grapHite structure after activated.
分析结果表明，自制的牛粪活性炭可能含有醇羟基、羧基、酚羟基、氨基以及含磷基团等官能团，经过活化后的产品中一部碳原子形成了比较稳定的片层石墨结构。 - The result of the infrared spectrum anlysis showed that the phenolic hydroxyl group reacted with the epoxy group and the condensation reaction was occurred between the methyl groups of phenolic resin.
红外光谱分析表明，导电胶在发生固化反应的过程中，酚醛树脂的酚羟基与环氧树脂的环氧基发生了反应，同时，酚醛树脂的羟甲基间也发生了缩合反应。 - Free OH, non-conjugated carbonyl and ester bonds in the C-O-C stretching vibration increase with increasing molecular weight, aromatic C-H stretching vibration and phenolic hydroxyl decrease with increasing molecular weight.
游离羟基、非共轭羰基和酯键中C-O-C的伸缩振动随着分子量增大而增加，酚羟基和芳环上C-H伸缩振动随着分子量增大而减小。 - The smaller molecular weight of humic acids is, the more oxygen groups such as carboxyl and phenolic hydroxyl it contains, the more reaction between the low molecular weight and humic acid, the greater absorption of humic acid.
腐殖酸分子量越小，含有的羧基和酚羟基等含氧官能团越多，低分子量腐殖酸级分与纳米TiO2的配位体反应程度较高，腐殖酸吸附量也越大。 - In order to introduce the phenolic hydroxyl group, we designed four salicylaldehyde Schiff base ligands, it indicated that this class of systems achieved the best catalytic effect.
为引入酚羟基，本文设计合成了四种水杨醛席夫碱配体，以这些配体构筑的催化体系催化模板反应，均能取得中等偏上的产率，是催化效果最好的一类配体。 - Ten mononuclear complexes with phenolic hydroxyl Schiff base ligands have synthesized.
以酚羟基Schiff碱为配体设计合成了十个单核过渡金属配合物。 - Alcoholysis of the glycerin lignin with ethanol, n-Pentanol, n-octyl alcohol, ethanol and n-octyl alcohol mixture, ethanol, n-octyl alcohol and phenol mixture were investigated, and the content of phenolic hydroxyl and total hydroxyl in different lignin alcoholysis liquid were determined.
分别考察了乙醇、正戊醇、正辛醇、乙醇正辛醇混合液（1：1，v/v）和乙醇正辛醇苯酚混合液（1：1：1，v/v）等不同的醇解剂对甘油木质素的醇解作用。 - The number and position of phenolic hydroxyl groups, the number of methoxyl groups substituted in ortho position to the hydroxyl group and the character of side chain in the structure seemed to play an important role in the activity in DPPH assay.
对于DPPH法，化合物结构中酚羟基的数目和位置、羟基邻位甲氧基的数目和侧链取代基的性质都会对活性产生重要的影响。