查询词典 vinylidene

The vinylidene effect in PIB versus PP is also reproduced.

从分子动力学模拟得到的体积-温度关系曲线可以发现，分子动力学模拟对于预测高分子的玻璃化转变温度很有用处。

Polyvinylidene Fluoride is polymerized from Vinylidene Fluoride, it owns outstanding characteristics of high mechanical intensity, good radiation resistance.

聚偏氟乙烯是由偏氟乙烯聚合制得，简称PVDF。

The reaction takes place as soon as 3a is dissolved in solution. With the presence of a tethering terminal vinyl group bound to the vinylidene ligand, the [2+2] cycloaddition of two C=C double bonds readily occurred.

当有一乙烯基键结在丙二烯基上，分子内的两个碳碳双键会马上发生[2+2]的环化加成反应。

In this paper, the ionic liquid-polymer electrolytes based on 1-ethyl-3-methylimida-zolium tetrafluoroborate (EMIBF_4) and poly(vinylidene fluoride-co-hexafluoropropane) P(VDF-HFP were prepared on the basis of the existing results.

本论文采用室温离子液体，1-乙基-3-甲基咪唑四氟硼酸盐(EMIBF_4)与聚偏氟乙烯-六氟丙烯聚合物复合制备了新型离子液体/聚合物电解质。

Via comprehensive computations, the possibilities of vinylidene and allene intermediates were excluded, and the reaction mechanism was found to contain the following three steps:(1) gold-catalyzed cyclization to give the cyclic intermediate,(2) the cyclic intermediate undergoing a 1,3-H migration to give a more stable intermediate, with the assistance of water-cluster,(3) finially, the 1,2-H or 1,2-silyl migration occuring for generation of the observed product.

通过对各种可能的反应路径的进行计算和比较，排除了亚甲基卡宾和连二烯中间体的可能性，并确定该异构化反应机理包含以下三个步骤：（1）炔丙基吡啶反应在金催化条件下发生分子内的成环得到环状中间体；（2）环状中间体在水分子簇的协助下优先发生1，3-氢迁移反应，异构化得到更为稳定的中间体；（3）最后再进行1，2-氢迁移或是1，2-硅烷基团迁移即得到实验中所观察到的环异构化产物。

Poly(vinylidene fluoride-co-hexafluoropropylene) flat membranes were prepared via the TIPS process using diluent mixture of DBP and DEHP. The effects of interaction between PVDF-HFP and diluent mixture on the microstructure and the aggregation structure of PVDF-HFP flat membrane has been investigated.

通过TIPS法并应用混合稀释剂制备了偏氟乙烯-六氟丙烯共聚物平板膜，并研究PVDF-HFP与混合稀释剂之间的相互作用对PVDF-HFP平板膜的孔结构和聚集态结构的影响。

The obtained CPE membrane was self-standing, transparent and flexible with poly(vinylidene fluoride-co-hexafluoropropylene) P(VDF-HFP used as basic material and LiPF6 as salt.

交流阻抗实验表明，该复合聚合物电解质的室温电导率可达10-3Scm-1；线性扫描循环伏安测试表明，该聚合物的电化学稳定窗口大于4.5V。

Modification of fluorocarbon resin 246 (Copolymer of vinylidene fluoride－tetrafluoroethylene－hexafluoropropylene) with epoxy resin will improve the adhesion of fluorocarbon resin on metal surface.

摘 要：用环氧树脂改性偏二氟乙烯－四氟乙烯－六氟丙烯共聚物(氟树脂246)，可以大大提高氟树脂在金属底材表面的附著力。

Solubility of liquid blowing agent in vinylidene chloride - acrylonitrile - styrene terpolymer was determined under the condition of directly immersing the VDC polymer sample into the blowing agent.

研究了液体发泡剂种类、共聚物组成、浸渍温度对发泡剂在偏氯乙烯-丙烯腈-苯乙烯共聚物中溶解度的影响。

The spectral characteristics and photolysis quantum yields of ACRM composed of vinylidene chloride-methyl acrylate(VdCl2-MA) copolymer and pentamethoxyl red were measured.

本文研究了由偏二氯乙烯-丙烯酸甲酯共聚合物(VdCl2-MA)和五甲氧基红指示剂组成的酸敏变色记录材料的光谱特性，测定了其光分解量子产率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。