main chain

Especially , polyethylene glycol ( PEG ) on the main chain of the polyurethane can offer good hydrophilicity.

通过在聚氨酯主链上引入亲水的 聚乙二醇 嵌段来赋予压敏胶亲水性.

When ROMP of monomers occured, the unsaturated carbon-carbon double bond could remain in the main chain of polymers, constituting its unique microstructure, such as trans/ cis ratio of double bond and tacticity.

经开环易位聚合后的聚合物主链上仍保留不饱和的碳碳双键，构成了其独特的微结构，如双键顺反比例及立构规整性等。

Copolymer is where chemical combination exists in the main chain between two polymers.

共聚是两种高聚物主链间的化学键联接.

A kind of novel PPV derivative containing electron transporting group on the main chain ( O PPV), was synthesized according to the WITTIG HORNER mechanism.

合成了一种聚苯撑乙烯撑（PPV）主链上含有电子传输基团的新型结构电子聚合物（O-PPV）。

Studies on the Heat Treatment and Realization of the Dence-Ring of Conjugated Bond Polymer of Main Chain

共轭键主链的聚合物热处理稠环化的研究

Degradation behavior of macromolecule polymer coated material is the process that the rupture of chemical bond of main chain and forming molecular fractionlet. Ubbelohde viscosity method was put forward for measuring viscosity-average molecular weight of copolymer.

高分子聚合物包膜材料降解过程就是主链上化学键的断裂并形成低相对分子质量碎片的过程，采用乌氏粘度计法测定淀粉/聚乙烯醇肥料包膜材料的降解程度。

Rigid conjugated main chain is an important feature of conjugated polymers, it can formed large conjugated π electron system, so that the charge can transfer within the molecule. Thus, a single quencher molecule can cause a super-quenching of the entire polymer chain.

含有刚性共轭主链是共轭聚合物的重要特征，能在分子内形成大的共轭π电子体系，从而使电荷在分子内进行传输，单个猝灭剂分子就足以引起聚合物荧光的超猝灭。

In short, the influence of the substituents is insignificant. However, the remarkable effect was induced by the conjugated structure in the main chain.

取代基的影响较小，主链共轭结构对吸收光谱的影响明显。

Research Progress of Liquid Crystalline Polymer with Poly ( ethyleneimine) as the Main Chain

聚乙烯亚胺为主链的液晶高分子研究进展

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.

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。

The results show that the inter-site electron& electron Coulomb repulsion leads to transfers of charge density and spin density between different sites on the main chain and side radicals.

结果表明，格点间的电子&电子Coulomb排斥相互作用将导致电荷密度和自旋密度在系统的主链不同格点及侧自由基之间转移；

Based on the object oriented data structure of Voronoi diagram for normal curvilinear polygon, an improved Divide and Conquer algorithm is presented in this paper for Voronoi diagram generation called Main Chain Divide and Conquer algorithm.

基于一般曲线多边形Voronoi图的面向对象数据结构，提出了一种改进的Voronoi图生成算法&基链分治算法。

Poly ( 2,7-carbazole) derivatives, incorporated by electron-withdrawing group in the main chain, form a new low band gap photoactive donor materials.

聚2,7-咔唑材料的衍生物通过与吸电子基团共轭链接能够形成一类新型窄带隙光活性给体材料。

the results showed epoxy group in kh-560 joined to chemical reaction in preparation process of polyurethane elastomers to form& oh group and organic siloxane units were introduced to main chain structure of polyurethane with chemical bond.

结果表明，KH-560中环氧基团参与了化学反应生成了&OH，并将有机硅氧烷结构单元以化学键合的方式引入了聚氨酯主链结构中；

Contained about 86.91% of total sugar, with 80.48% uronic acid; main chain maded up of-linkage;

总糖含量为86.91%，糖醛酸含量为80.48%，以β-型糖苷键为主键的蛋白结合多糖；