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- Poly(ether imide)(PEI)is a modification kind of high performance polymer,which adds a ether bond to macromolecular chain of polyimide(PI). 聚醚酰亚胺(PEI)是在聚酰亚胺(PI)链上引入醚键形成的一类高聚物。
- Photooxy-degradation(aging) will happen to polymer when they accept UV-irradiation of the sun especially weak bond or unsaturated bond as diolefine exist in macromolecular chain. 聚合物尤其是存在弱链键和双烯结构的大分子链,在接受太阳紫外线辐射后,易发生光诱发的氧化降解反应(老化)。
- On base of FTIR,DSC,XRD and()~(29)Si-NMR measurements,it is found that a long-range ordered ladderlike structure exists on the macromolecular chain of the hybrid material. 在酸性条件下;通过固相反应成功地由M制备了一种高分子杂化材料;并利用29Si_NMR;XRD;FTIR和差热分析(DSC)对这种材料进行了表征;其结果表明这种杂化材料的大分子主链上明显具有规整且长程有序的梯形结构.
- Both the experimental results and the theoretic analysis indicate that the extended order of the macromolecular chain or network could provide a new sort of organization to metal atoms along the polymer backbone. 实验结果和理论分析都表明，高分子链或网络不同程度的有序延伸有可能为金属离子沿着聚合物骨架提供一种新的排列方式，而且高分子金属配合物结构的多样性为无机材料形貌的多样性提供了可能。
- There are about 5.5mol% DEG segments will add to macromolecular chain of regenerative PET, while the chain has 5.7mol% ET segments in waste PET with butanediolysis and then condensation. 乙二醇醇解再生的聚酯中含有5.;5mol%25DEG链段，而经1;4丁二醇解聚再生的共聚酯中含有5
- High mechanical strength of natural rubber because it is self-reinforcing rubber, the time when the tensile stress will make the direction along the macromolecular chain to form crystal orientation. 天然橡胶手轮机械强度高的原因在于它是自补强橡胶手轮，当拉伸时会使大分子链沿应力方向取向形成结晶。
- The surface chemical effects of epoxy during dry friction were scission of macromolecular chains and oxidative degradation, and fatigue wear was the main wear mechanism. 环氧树脂在干摩擦过程中发生的表面化学效应主要是其分子链的断裂和氧化降解，其磨损形式主要为疲劳磨损。
- Macromolecular chains in the fibers all exhibit fully extended planar conformation and the fibers consist of lattice with monoclinic form.The fibers have obvious fibrillar structure and extremely h... 该类纤维中的大分子链均呈完全伸展的平面构象,且通常以单斜晶型砌入晶格。
- The abrasion not only resulted in the fragmentation of macromolecule chain, but also would lead to chain transfer or isomerization. 磨耗不仅会导致高分子链的断裂，而且可能会发生链转移反应和大分子自由基的异构化反应。
- Some self-dispersion cationic polyurethane emulsion was prepared with quarternary ammonium groups in macromolecule chain. 合成了一系列的阳离子型水性聚氨酯乳液。
- After they go through the exchange reaction of macromolecule chain,we obtain polyester-amide hot melt adhesive for textile. 研究了以聚酯胶和聚酰胺胶为原料在催化剂作用下加热共熔,通过大分子链交换反应制备织物用聚酯酰胺热熔胶的方法。
- sequence structure of macromolecular chains 高分子链序列结构
- stereo-chemical structure of macromolecular chains 高分子链的立体化学结构
- The chain has fallen foul of plants in the water. 链条已和水中的植物缠绕在了一起。
- She has a gold chain about her neck. 她在脖子的周围挂着一根金项链。
- branched structure of macromolecular chains 高分子链的支化结构
- conformational statistics of macromolecular chains 高分子链的构象统计
- The chain has run foul of some plants in the water. 铁链缠在水中的一些植物上。
- microstructure of macromolecular chains 高分子链结构
- She wore a silver chain around her neck. 她脖子上戴着一条银项链。
