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- The pH is equal to the of the carboxyl group. 等于羧基pKa的pH
- The introduction of a carboxyl group into a compound or molecule. 羧化把一个羧基引入一个化合物或一个分子
- The results indicate that carboxyl group is strongly interacted with MMT. 试验结果表明,羧酸基团与MMT有很强的相互作用。
- Another end for the hydroxyl and the carboxyl group, has the water affinity. 另一端为羟基和羧基,具有亲水性。
- Containing two carboxyl groups per molecule. 二羧基的每个分子中含有两个羧基的
- Each fatty acid consists of a hydrocarbon chain with a carboxyl group at one end. 每个脂肪酸由一端带有一个羧基的碳酸链组成。
- Removal of a carboxyl group from a chemical compound,usually with hydrogen replacing it. 脱羧作用从一化合物中脱去羧基,通常是用氢来替换。
- Removal of a carboxyl group from a chemical compound, usually with hydrogen replacing it. 脱羧作用从一化合物中脱去羧基,通常是用氢来替换
- The fact that IR vibrating peaks of the carboxyl group have made a wide and split peak is explained in this paper. 解释了该类配合物的羧基红外振动峰是一宽峰且有劈裂的特点。
- In the meanwhile, the various. morphology of the latex and the migration of the carboxyl group are also discussed. 这一反应还伴随着羧基的迁移以及乳胶粒膨润、溶胀和压缩的形态变化过程。
- By direct cyanidation, the reaction of p-toluic acid with urea would convert the carboxyl group to cyano group to give p - tolunitrile. 本文报道了对甲苯甲酸与尿素反应,进行直接氰化将羧基转变成氰基生成对甲苯甲腈的情况,改进了对甲苯甲酸直接氰化的工艺条件。
- Amino acids are called "amino acids" because they contain an amino group (NH2) and a carboxyl group (COOH) that is acidic. 氨基酸之所以叫“氨基酸”,是因为每个氨基酸分子包含一个氨基(NH2)和一个羧基(COOH)。
- This paper reports an improved headspace gas chromatographic method for determination of carboxyl group content in wood fibers. 报道了一种应用顶空气相色谱测定纸浆纤维羧基含量的方法。
- The pendant carboxyl groups add more crosslinking sites and polar than Nitrile. 在丁腈橡胶的基础上,羧基增加架桥端并赋予更高的极性。
- Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid and the amino group of another. 肽,一种自然或人工的合成物,包括二个或二个以上氨基酸,通过一个氨基酸的酸基和另一个的羧基结合而成。
- A temperature sensitive polymer containing a terminal carboxyl group was prepared by copolymerization of N isopropylacrylamide with mercaptoacetic acid. 合成了带有活性末端的寡聚 N-异丙基丙烯酰胺 (ONIPAAm) ;并考察了其温度敏感性质 .
- Derivatives of Naphthol AS containing carboxyl group (-COOH) as second coupling agent were used in mixed coupling process to medify C.I. pigment Red 57: 1. 介绍了以含羧酸基团的色酸衍生物为第二偶合组分,采用分步偶合工艺,对C.I.颜料红57:1进行了改性。
- The influencing factors of condensation reaction were investigated such as anhydrides, base agent, temperature, carboxyl group protected of Gly and Asp. 探讨了成酐和碱性试剂,反应温度,甘氨酸和天冬氨酸羧基保护等对缩合反应的影响。
- The modification of HBP with about proper amount 70% of epoxy resin based the mole of the carboxyl group, showed obviously the improved photo reactivies and mechanical properties. 环氧树脂用量为HBP羧基物质量的70%25左右时,改性的超支化聚酯的光固化活性有明显提高,力学性能得到明显改进。
- The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP. 研究了聚对苯二甲酸丙二醇酯(PTT),PET,CDP在不同温度和时间下的特性粘数和端羧基含量的变化。