查询词典 ladderlike

Study on synthesis and thermo-stability of ladderlike polymethyl/phenylsilsesquioxane

利用气相色谱技术对氟代仲丁烷的热稳定性进行了考察，并通过对氟代仲丁烷的热消除产物的定性定量分析，讨论了其热分解机理，以四圆环状过渡态历程和碳正离子重排历程对热消除反应的产物形成进行解释。

Poor students should think over their own intelligence state and diligent intensity that can been paid out to establishi expectation level and adjust the goal. So the goal can finally been ladderlike and systematism.

贫困学子在确立自己的期望水平时要注意从自己的智力状况和自己所能付出的努力程度为调整目标，最后将目标梯度化、体系化。

This synthetic method paves another new way for synthesis and functionalization of novel ladderlike polymers.

FTIR，1H-NMR，29Si-NMR，XRD，DSC，VPO及溶解性实验表明合成的梯形聚倍半硅氧烷具有很好的梯形结构。

Pure inorganic ladderlike polyhydrosilsequioxane was prepared by the way of subsection hydrolysis.

第二部分超常价态过渡金属Ni引发接枝聚合的研究本论文第四章主要研究了利用二过碘酸合镍Ni为引发剂于碱性条件下在纤维素上接枝丙烯酸甲酯，接枝以后的共聚物显示了很好的热稳定性和抗潮性。

The preliminary results show that the peak of HSiO〓 with the baseline width of about 4ppm in 〓Si-NMR spectrum is getting narrower, which shows that the regularity of the ladderlike polymer is further improved.

初步结果发现〓Si-NMR谱中代表梯形主链上Si原子峰的基线宽度降低到4ppm，表明梯形聚氢基倍半硅氧烷的规整性有进一步提高。

Furthermore,H-T is the first soluble,reactive and purely inorganic ladderlike macromolecule,which can be grafted through hydrosilylation reaction and others to generate functional LPSs with different side groups.

而且，该聚合物又是第一个可溶性、反应性、纯梯形主链无机高分子，它可以进一步通过硅氢侧基接枝反应制备不同类型的梯形无机主链功能高分子。

There are also two types of IPTligands in crystal 2. With two bidentate carboxylates, one acts as bridging ligandconnecting neighboring 〓 tetrahedral core along c axia to form ladderlike long chain.

且间苯二甲酸根配体可以分为两类：第一类配体中每个羧酸根连接四核锌四面体结构中的四条边并沿c轴方向连接邻近的四面体结构单元形成梯形长链。

A quinone-hydroquinone-bridged ladderlike polyorganosiloxane was synthesized successfully by quinone-hydroquinone charge transfer interaction self-assembling template.

利用醌-氢醌电荷转移相互作用为模板合成了醌-氢醌交替的有机桥基梯形聚有机硅氧烷。

The initial three chapters of this dissertation aim to improve the regularity of ladderlike polysiloxane through strong H-bonding template and slowly dropping half water for hydrolysis and condensation.

本论文前三章旨在利用强氢键模板作用和半水量水解同步缩合脱氯化氢的改进方法首次合成了(1)高规整性、可溶的反应性含对苯二胺有机桥基的聚氢基硅氧烷高分子，29Si-NMR 图中显示梯形主链上硅原子-Si(HO2/2峰的基线宽度△1.0 ppm，这是至今文献报道的所有梯形聚硅氧烷规整性最好的数据；采用分段去撑法成功的合成了纯无机梯形聚氢基硅氧(来源：1bABC论文网www.abclunwen.com)烷。

A high ordered ladderlike polyhydrosiloxane was successfully synthesized by the strong H-bonding template of N〓, N〓-bis (1-hydroxy-2-methylpropan-2-yl) terephthalamide.

通过强的酰胺氢键模板作用首次合成了高规整性、可溶的反应性有机桥基N，N-二（2-羟基-2-甲基丙基）对苯二甲酰胺聚氢基硅氧烷高分子。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。