The positive ions spectra of chemical ionization of multifunctional group molecules 2,4 [(CnH2n+1 )2NCH2](n-C12H25 )C6H3OH,n=1,2,3,4,5 were determined.
测定了５个不对称型多官能团分子２，４［（ＣｎＨ２ｎ＋１）２ＮＣＨ２］（ｎ—Ｃ１２Ｈ２５）Ｃ６Ｈ３９ＯＨ（ｎ＝１、２、３、４、５）的化学电离正离子谱，主要结论如下：（１）Ｍ＋多有１０％以上丰度，且多随烷链（ＣｎＨ２ｎ＋１）的增长（ｎ增加）而减小；（２）质子化分子离子峰多为基峰，且可用通式３２０＋２８（ｎ—１）表示，其中ｎ＝１、２、３、４；（３）５种化合物的均有弱丰度（≤５％）的Ｍ—Ｈ峰；（４）峰强比随ＣｎＨ２ｎ＋１中ｎ的增加呈良好的线性递减特征；（５）Ｉ％［ｍ／ｚ（Ｍ＋αＨ）］～α曲线表明，质子化数目愈多（α增多），相应质子化峰愈弱，愈不稳定；（６）测得弱丰度２Ｍ＋αＨ１＋峰，α＝１、２、３，表示相应峰的存在。
Impact of ultraviolet radiation on changes of typical functional groups and vitrification temperature for asphalts;
紫外线对沥青特征官能团和玻璃化温度的影响
Effects of functional groups on the friction properties of self-assembled monolayers;
官能团对自组装分子膜摩擦特性的影响
The amber and its familiar imitation samples are tested with the means of conventional gemmological methods,and FTIR and its technique of computer second derivative order for analysing the kinds and characteristics of carbon functional group in amber and searching for differences between the amber and its imitation samples.
以琥珀及其常见仿制品为研究对象,采用常规的宝石学测试、傅里叶变换红外光谱仪以及其计算机二次微分阶拟合处理技术,测试了样品的红外吸收光谱,剖析琥珀中所含C官能团的种类和特征,寻找琥珀与仿制品之间的差异和联系。
Design and synthesis of novel bifunctional organocatalysts;
新型双官能团有机小分子催化剂的设计合成
quantitative analysis of organic functional groups
有机官能团定量分析
heterobifunctional agent
异（基）双功能试剂，双异官能团试剂
The organo functional groups will react with the resin.
有机官能团将与树脂反应。
The Synthesis and Application Research of Difunctional Modified Polysiloxane;
双官能团聚硅氧烷的合成及应用研究
Quantitative analysis methods of factional group of several organic compounds;
几种有机化合物官能团定量分析方法
Effect of Particle Size on Hydroxyl Groups of Coal Surface
颗粒粒径对煤表面羟基官能团的影响
Synthesis of Ionic Liquid Functionalized with Hydroxyl and Ester
羟基与酯基官能团化离子液体的合成
It contains functional groups which can exchange with ions from solution.
它含有能与溶液中离子发生交换作用的官能团。
Study on Synthesis and Thermal Property of Multifunctional POSS Based PMMA Copolymers;
多官能团POSS基PMMA共聚物的合成与热性能研究
Study on the Properties of Carboxyl Functionalized Corncob on Adsorption of Palladium(Ⅱ)
羧基官能团化玉米芯对钯(Ⅱ)的吸附性能研究
Preparation and Properties of Bifunctional Organo-modified Montmorillonite
双官能团有机改性蒙脱石的制备及性能
Degradability of Poly(ε-caprolactone) Bearing Pendant Carboxyl Groups
含侧羧基官能团的聚(ε-己内酯)降解性能的研究
In condensation polymerization, each monomer unit must have at least two functional groups.
在缩聚反应中,每个单体至少要有两个官能团；
The polymerization characteristics and the suitable mono-functional initiator systems were introduced.
介绍了聚合特点和单官能团引发剂体系。
Theoretical Study on the Organocatalysis of Bifunctional-amine Catalyst;
胺类双官能团催化剂催化作用的理论研究
Preparation of Porous Carbons and Control of Porosity and Surface Functional Groups;
多孔炭的制备及其孔结构、表面官能团的调控
Asymmetric Synthesis of α-Amino Acids via Heterocyclic Compounds as Pre-function;
以杂环为前官能团不对称合成α-氨基酸
Study on Interaction Functional Groups of Gelatin and Montmorillonite in Composite;
明胶/蒙脱土复合材料中相互作用官能团的研究