液体聚异戊二烯/天然橡胶复合材料的制备与性能

制备了4种3,4-结构摩尔分数不同的液体聚异戊二烯(LIR),考察了芳烃油及不同3,4-结构摩尔分数的LIR作为增塑剂对于天然橡胶(NR)的交联密度、物理机械性能、动态力学性能及微观结构的影响.结果表明,随着LIR中3,4-结构摩尔分数的增加,NR的交联密度增加.LIR不仅起到增塑的作用,还可与NR形成共交联网络.与芳...     

催眠镇静药甲基三唑安定的合成

以对氯硝基苯为起始原料,经六步反应合成了催眠镇静药８－氯－１－甲基－６－苯基－４Ｈ－［１,２,４］三唑并［４,３－α］［１,４］苯并二氮杂。各步收率均高于参考文献报道收率。总收率由老工艺的２０．８％提高到现在的３４．６％。所得产品经元素分析,ＵＶ、ＩＲ、１ＨＮＭＲ、ＭＳ等光谱分析,证明结构正确。     

TEACO_2激光跃迁带选择

理论计算表明,采用法布里—珀罗调制器作为ＴＥＡ ＣＯ２ 激光器的输出耦合反射镜,可以在ＣＯ２ 激光器的四个跃迁带（００°１ １０°０ 带和００°１ ０２°０ 带的Ｐ支和Ｒ 支）之间进行发射激光波长选择。     

三嗪除草剂与豌豆 D1 蛋白作用的分子模拟研究(英)

报道了三嗪类化合物与豌豆 Ｄ１ 蛋白结合的分子模拟研究。结果表明, 三嗪类化合物主要以氢键方式与 Ｄ１ 蛋白结合, 同时亦发现, Ｓ Ｅ Ｒ２６８ 或 Ｈ Ｉ Ｓ２１５ 是这类化合物与 Ｄ１ 蛋白作用时重要的结合位点     

Spin-Orbit Readout Using Thin Films of Topological Insulator Sb2Te3 Deposited by Industrial Magnetron Sputtering

Driving a spin-logic circuit requires the production of a large output signal by spin-charge interconversion in spin-orbit readout devices. This should be possible by using topological insulators, which are known for their high spin-charge interconversion efficiency. However, high-quality topological insulators have so far only been obtained on a small scale, or with large scale deposition techniques that are not compatible with conventional industrial deposition processes. The nanopatterning and electrical spin injection into these materials have also proven difficult due to their fragile structure and low spin conductance. The fabrication of a spin-orbit readout device from the topological insulator Sbb>2b>Teb>3b> deposited by large-scale industrial magnetron sputtering on SiOb>2b> is presented. Despite a modification of the Sbb>2b>Teb>3b> layer structural properties during the device nanofabrication, a sizeable output voltage is measured that can be unambiguously ascribed to a spin-charge interconversion process. The results pave the way for the integration of layered van der Waals materials in spin-logic devices.