链节

基于简立方格点模型对AB两嵌段高分子尾形链的构象性质及其链节的空间分布进行了MonteCarlo模拟。

The conformation properties and the spatial segment distribution of AB tail-like block copolymer are studied by means of dynamic Monte Carlo simulations based on the Metropolis method .

FTIR分析表明，有机硅薄膜含有-Si-O-和-Si-R-柔性链节，具有由无机相向有机相逐渐过渡的梯度结构。

FTIR results showed that the silicon membrane consisted of-Si-O - and - Si-R - flexible segment , and this silicon membrane changed gradually from inorganic phase to organic phase on the surface of the glass fiber .

这根链条由136个链节组成。

The chain is formed from 136 links .

NMR法能分析橡胶链中单元链节的组成、结构；

NMR can be used in determining the composition and structure of the chain unit of rubber ;

一种U形条；开放的一端可以由链节穿过并且可以由一个条关闭。

A U-shaped bar ; the open end can be passed through chain links and closed with a bar .

由电导率测试结果可知，1个Ca~（2+）与大约4个PEG的链节单元形成配值结构物。

As a result of specific conductivity examined , it may be realized that the coordination structure was composed of one calcium ion with about four monomeric units for PEG .

从纯流体汽液相平衡数据回归得分子的链节作用参数ε/k、d和ms，这些参数预测纯流体表面张力时可获得较好结果。

The parameters ε / k , d and m s for pure fluids were regressed from the experimental data of the vapor-liquid phase equilibria , and such parameters could lead to good prediction for surface tension .

用FTIR，1HNMR和13cNMR分析乙丙共聚物的序列结构与链节比。

The sequential structures and monomer unit ratio of ethylene-propylene copolymer ( EPC ) were analyzed by FTIR ,() ~ 1H NMR and () ~ ( 13 ) C NMR .

用以上的链节参数预测TBP、稀释剂和水形成的二元、三元和四元体系的活度系数。

The component activity coefficients for binary , ternary and quaternary systems composed of TBP , diluents and water are predicted with these parameters .

在动态MonteCarlo模拟的协同运动算法中，几个相邻的链节可以同时运动，这可以理解为高分子链中张力的作用引起的协同运动。

In the cooperative motion Monte Carlo simulation algorithm of polymer , several neighboring segments can move collectively . This may be interpreted as the local molecular motion arising from the tensile force in the polymer chain .

用FTIR和13C－NMR法测定了Nd（naph）3－Al（i－Bu）3－C60衍生物催化体系及添加C60合成的聚丁二烯的链节含量。

The chain contents of polybutadiene synthesized with Nd ( naph ) 3-Al ( i-Bu ) 3-C60 derivative catalytic system as well as adding C60 into it were determined by FTIR and 13C-NMR .

用MonteCarlo方法对两嵌段共聚高分子在固液界面的吸附进行模拟，获得了固液界面区吸附链节的分布和吸附构型大小分布等微观信息。

Monte Carlo simulation method was used to simulate the adsorption of diblock copolymers at solid liquid interface . The microstructure information of adsorbed layer , such as adsorbed segment profile and the distribution of size of various adsorption configurations , was obtained .

而SDS束缚胶束与PEG形成团簇时，除极性部位及其相邻区域的相互作用外，部分PEG链节可能渗入到SDS束缚胶束的C3部位或更深的内部。

Also in SDS-PEG cluster , besides the interaction of polar sections between SDS and PVP , some of PEG chains penetrate into the area nearby the C_ ( 3 ) or deeper inside the bound micelle of SDS .

将（C）与三乙醇胺（D）反应，经酯交换，β-消除和交联等步骤，合成了含（D）链节的多孔性聚硅氧烷树脂（TEASR）。

Porous polysiloxane resins ( TEASR ) containing triethanolamine chain element were prepared by the reaction of ( C ) with triethanolamine , through reactions of ester exchanges , β - elimination and crosslink .

本文提出了链节流体力学体积概念，建立了一种直接解析共聚物GPC谱图的方法，用此法可以得到共聚物完整的结构参数。

A new concept , the hydrodynamic volume of segment , and a method of analysing the GPC chromatograms of copolymers have been proposed , with which the whole of the structural parameters of copolymers can be obtained .

在聚合物体系中加入SiCH3Cl3可使聚合物的顺1,4量链节含量有所提高。

The content of cis 1 , 4 unit can be increased by adding SiCH_3Cl_3 into the polymerization system .

IR分析表明：PVAc-Cu（Ⅱ）配合物中PVAc链节中的CH3COO&中的羰基氧提供孤对电子与金属离子Cu（Ⅱ）形成配位键。

The IR analysis shows that the oxygen in carbonyl group of CH_ ( 3 ) COO in PVAc chain unit provides lone pair electron to form the coordinate bond with metal copper ion Cu ( II ) .

实验结果表明：酯基类型及数量对淀粉/PVA混合浆液的相分离行为有明显影响，BA链节有利于混合浆液的稳定性，而MA和MMA则能获取相对较低的相分离程度。

Experiments has indicated that ester type and content has significant impact on the phase separation of mixed starch / PVA size . BA link helps the stability of mixed size , while MA and MMA can achieve relatively lower separation extent of phase .

分别研究了厌氧过程和好氧过程中供氧量、碳源调节物浓度、培养时间等对菌胶团菌生长和胞内PHA积累的影响，测定了所得PHA的分子量、熔点和单体链节组成。

In this work , the influence of the oxygen supply rate , attachment carbon source concentration and culture time to the accumulation of PHA were investigated . The molecular weight and monomer composition of PHA extracted from activated sludge were measured .

元素分析和电感偶合等离子体发射光谱（AES）测定结果证明了每个Tb3+分别与EPU分子中1个链节单元的羟基和3个TTA-发生配位，从而得到配合物的结构。

Elemental analysis and AES indicate that each Tb 3 + ion is coordinated by three TTA - ions and two hydroxyls from one unit in the EPU molecule , making the coordination polymer cross linked further .

当LLDPE／LDPE共混物淬冷或快速结晶时，LLDPE中的线形分子可与LDPE中长支化链的链节产生共晶，其熔融单峰较宽，峰位随LLDPE含量增加而稍向高温移动。

Cocrystallization can take place betweeen the linear molecules of LLDPE and long chain branched molecules of LDPE when the LLDPE / LDPE blends crystallize at a greater cooling rate or in quench , resulting in a single melting peak which value depend on composition of the blends .

树脂中叔氨基和羟基含量、中和剂种类、中和度及固含量影响树脂的水分散性。树脂中DMAEMA链节增多，树脂在水中的分散性增强；

It was founded that the contents of N , N-dimethyl amino group and hydroxyl group in the resin , the neutralizing agent , and the neutralization degree , solid content influenced the dispersibility of the modified acrylic resin in water .

分别从齿形链和链轮啮合的理论基础、齿形链与链轮的正确啮合条件、啮合就位时围链节距增量计算等几方面研究了圆形基准孔Hy-Vo齿形链的啮合设计机理。

The author studies the meshing design mechanisms of the rotundity-datum-aperture Hy-Vo silent chain from several different aspects such as the meshing theoretical basis of silent chain and sprocket , the correct meshing condition between silent chain and sprocket , and the incremental calculation of correct meshing round-chain pitch .

注意向各个凸轮轴的分配；其中两个链节上具有标识。

Observe allocation to the camshafts ; two chain links identified .

工程机械履带链节的密封装置结构设想

Assumption for Sealing Device Structure of Track Link of Construction Machinery

含DL-乳酸链节的聚酯酰胺的合成与表征

Synthesis and Characterization of Polyesteramide Containing DL - Lactic Acid Segments

1,2-链节的立构体中以全同链节含量较高，可达60%。

The content of isotactic isomer in 1,2-unit reached approximately 60 % .

丁二烯链节的微观结构基本上是反式-1,4构型。

Butadiene unit in copolymers is exclusively in trans-1,4 structure .

紫外导数光谱法在含苯乙烯链节共聚物组成测定中的应用

Application of Derivative UV Spectrometry to the Composition Determination of Polystyrene-based Copolymers

正时链条有两个铜色和一个黄色的链节。

The timing chain has two copper-coloured and one yellow chain link .