主链

降解前后的FT-IR分析表明，在降解过程中缩醛产物的主链发生了断裂。

FT-IR analysis of the samples before and after biodegradation indicated that fission occurs in the backbone of PVA acetals during the degrading process .

主链上弹性PBD段通过多个联结点与相邻的PS微区连接，提高了弹性体的性能。

The elastic PBD blocks of the backbone bridge adjacent PS domains through multiple junction points , resulting in the enhanced elastomeric properties .

DNA主链构象与脱氧鸟苷组分构象相关性的喇曼分析

Raman Spectroscopic Analyses of Conformations Relationship Between Deoxyguanosine Component and Deoxyribose - phosphate Backbone in DNA

傅里叶变换红外光谱分析结果表明，St能接枝到PP大分子主链上；

St could be grafted onto main chain of PP .

如果链是如INPUT之类的主链，则使用该链的缺省策略处理信息包。

If the chain is a main chain like INPUT , the packet will be handled using the default policy of that chain .

用热重分析法（TG）研究了EVA/OMMT纳米复合材料中EVA主链的热稳定性。

The thermal stability of the EVA in the nanocomposites was studied by TGA .

根据实验结果，对MT主链折叠的动力进行了讨论。

The motive force of the main chain folding of MT was discussed .

材料的辐射降解主要发生在主链上，即CC键断裂，而侧基CF键的断裂相对较少。

The radiation decomposition of the sample is mainly the rupture of C C bond , and less is the rupture of C F bond .

以Ni及Co催化体系聚合的试样，支化点可能位于顺-1,4主链双键的α-次甲基上；

For samples polymerized from Ni and Co catalysts systems the branching point is on the a-methylene group of the Cis-1,4 double bond .

XRD结果显示四种合成的主链二茂铁基聚合物基本上是无定型的，但有些结晶度。

The XRD results showed that the four synthesized main-chain ferrocene-based polymers are mostly amorphous but have some degree of crystallinity .

在大分子主链中引入S、N等具有抗磨活性的杂原子，可改善聚合物作为润滑添加剂的摩擦学性能。

S , N atoms having good antiwear properties were added to the main chain of polymer in order to improve tribological performance of the polymer as lubricant additive .

研究结果表明在聚氨酯主链中引入PDMS链段，有利于相分离程度的提高。

The results show that phase separation increase with increasing of PDMS .

一般情况下，无论对主链还是侧链液晶离聚物，随着离子在链中浓度增加，液晶相向各向同性液体转化温度（Ti）降低。

Generally , The T I decreased with increasing ionic concentration in the chain for both main chain and side chain liquid crystalline ionomers .

共轭主链结构三苯胺PPV聚合物发光二极管

Polymer Light Emitting Diodes Based on a Triphenylamine-Containing PPV

PRINS反应的基本物是DNA聚合酶和引物原位扩展反应中的标引核苷。缩氨酸核酸探针是合成的不带电聚酰胺主链的DNA类似物。

The PRINS reaction is based on the use of a DNA polymerase and labeled nucleotide in an in situ primer extension reaction .

合成了主链重复结构单元中含不饱和双键的聚磷酸酯，利用FT-IR及NMR对其进行了表征。

Unsaturated polyphosphoester ( UPPE ) containing unsaturated olefinic bonds in repeat units was synthesized and characterized by FT-IR and NMR .

硅橡胶（Q）为主链含有硅、氧原子的特种橡胶，其中起主要作用的是硅元素。

Silicone rubber ( Q ) - based chain containing silicon and oxygen atoms of special rubber , which play a major role in the silicon .

利用聚酰亚胺主链上羟侧基与液晶化合物环氧基的反应，制备了两类侧链液晶基元不同的侧链液晶原位复合自增强的新型PI薄膜材料。

By means of the conversion from pendent hydroxyl group to functional side-chain , novel liquid crystal side-chain in-situ self-reinforced polyimide films were achieved .

TG表明，碱处理主要影响大豆分离蛋白的三级结构（多肽主链按特定的几何排布，形成近似球形的紧密结构）。3、成功制备SPI/PVA塑料。

TG showed that the alkali treatment mainly affects the tertiary structure of SPI . 3 , Successfully prepared SPI / PVA plastics .

按照我们在文献[1]中给出的辐射诱发含修复DNA主链断裂随机动力学理论数学模型，在此基础上，本文进一步导出了两种不同形成过程的双链断裂变化规律。

According to our stochastic dynamic theory of DNA 's strand breaks with repair induced by irradiation given in the literature [ 1 ] . some theoretical results are given in this paper .

SG侧链羟基氧反应活性较强而主链的较弱。

In respect of the SG reactivity , the hydroxyl-oxygen atoms in side-chain was higher than that in mian-chain .

丙烯酸酯橡胶（ACM）是一种饱和主链结构的特种合成橡胶，由于结构中丙烯酸乙酯、丙烯酸丁酯等结构单元组成差异，导致不同型号的橡胶性能有所不同。

Acrylic rubber ( ACM ) is a kind of special synthesizing elastomer with saturated main-bond structure .

文中采用胺化的方法在CNTs的缺陷处接枝上活性基团，然后将其作为扩链剂参与到聚氨酯主链的反应中。

The active group was graft to the defect point of CNTs by amination in this paper , then reaction as chain extender .

主链含TTF结构的聚醚高弹体的合成与电性能

Polyether elastomers containing TTF structure in the main chain , synthesis and electrical properties

PVP结构中的吡咯烷酮环含有羰基，这个基团通过一个酰胺键与主链相连。

The pyrrolidone ring in PVP molecule contains a double-bond carbonyl , which connects to the main chain through an amide bond .

说明经过射线、β射线辐照后，DNA碱基受损，主链断裂，双螺旋结构遭到破坏，失去了其复制、转录的生物学功能。

All of these indicate that after γ - ray and β - ray irradiation , the base damage , strand break , double helix structure destroyed , the function of replicate and translation in biology loss .

XRD衍射曲线表明随IEC值的增大和成膜温度的降低，膜的结晶度下降，主链结晶的规整性变差。

From the XRD profiles , we found that the crystallinity decreased and the perfection of the crystal became lower with increasing IEC value and decreasing hot-pressing temperature .

主链具有刚性棒状结构，侧链带有离子基团，通过测量其在DMSO溶液中的粘度，研究了其溶液行为。

PPE-SO-3has a rigid rod-like backbone with ionic side chains , and its solution behavior in DMSO was studied through viscosity measurement .

为扩大高密度聚乙烯（HDPE）的使用范围，提高其着色力和与其它聚合物的相容性，可在HDPE主链上引入极性基团对HDPE进行改性。

In order to expand the application and improve the tinting power and compatibility of HDPE , polar group could be introduced to the main chain of HDPE .

采用溶液聚合法合成了以BA、AN为主链结构的液态含羧基丙烯酸酯低聚物，并用其对双酚A型环氧树脂胶黏剂进行增韧改性。

Liquid acrylate oligomers containing carboxyl groups with BA and AN as main chain structure were synthesized by solution polymerization , and used for toughening modification of bisphenol A epoxy resin adhesive .