• 实验发现,1,4-二苯基1,3-丁二等多聚烯化合物共振光子(NRTP异构强烈依赖于光波长

    The efficiency of the non resonant two photon (NRTP) isomerizations of stilbenes and 1,4 diphenyl 1,3 butadienes was found to depend strongly on the wavelength of the laser pulses.

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  • 穿化纤衣料比如这样可以吸收身上

    Start with a thin layer of synthetic material such as polypropylene, which wicks sweat from your body.

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  • 点燃固体推进燃料(HTPB称羟基封端丁二)液体氧化剂(高挥发性过氧化物HTP)混合物持续20

    It will burn a mixture of solid propellant (HTPB, or hydroxyl-terminated polybutadiene) and liquid oxidiser (high-test peroxide, HTP) for 20 seconds.

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  • 基本分子结构良好的燃烧剂。

    The polydiene basic molecular structure is an excellent fuel.

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  • 随着反应条件不同,产物可以的双键加成得到的酮。

    Depending upon reaction conditions, the product may be a polyketone formed by addition polymerization of the ketene double bond.

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  • 方法允许范围广泛类似物获得几个步骤作为前体现成的。

    The new methods allow a wide range of poly analogs to be obtained in few steps, as the allylic precursors are readily available.

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  • 实验分析验证了丁二系统自动爆炸原因氧气进入系统形成丁二过氧化物。

    The cause for automatic explosion in butadiene systems, that is the formation of butadiene polyperoxide due to the entry of oxygen into the system, is verified through experiments.

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  • 分子丁二是一精细化工产品用途广泛。本文技术开发过程进行总结。

    Low molecule polybutadiene, a kind of fine petrochemical, is extensively used. Development of its production technology is summarized in the article.

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  • 介绍了抚顺化工有限公司丁二储存现状分析了丁二特性形成条件

    The storage actualities of butadiene in Fushun ethylene co. Ltd. is introduced. In the paper, the characteristics of ethylene and formation condition of its autopolymer are analyzed.

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  • 物的例子单体异戊二天然橡胶以及单体为乙

    Examples of homopolymers are natural rubber, whose monomer is isoprene, and polyethylene, whose monomer is ethylene.

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  • 工作动态力学介电松弛固态核磁共振等方法研究1,2-丁二多重转变松弛

    The investigation on the multiple transitions and relaxations of 1,2-polybutadiene was carried out by dynamic mechanical, dielectric relaxation, and solid state NMR methods.

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  • 烷基酮二体(akd)中(碱)性施胶系统浆及沉积物产生积累产生纸张甚至引起断头质量问题主要原因

    Formation and accumulation of slimes and deposits are the major reasons inducing paper quality problems such as dirty spots, broken holes, and even cause the broken of paper in AKD sizing system.

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  • 本文研究了高压汞灯照射下,二甲酮3,4 -异戊二能量传递机理

    This paper studied the energy transmission mechanism between benzophenone and 3, 4-polyisoprene which were irradiated by high pressure Hg lamp.

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  • 介绍了液体丁二结构化学特性涂料工业中的应用

    The structure, chemical properties and applications in coating industry of LPB have been introduced in this paper.

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  • 通过研究磺化反应动力学磺化产物的分析测试,提出磺化发生丁二的双键新观点

    The sulfonating reaction was found on the unsaturation bonds of polybutadiene basing on the research of dynamics of the sulfonating action and FTIR analysis of reacted products.

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  • 研究超声波辐照作用下丁二PB)在环已烷溶液中的降解AA)的共疑反应。

    The ultrasonic degradation of polybutadiene (PB) and block copolymerization of PB with acrylic acid(AA)in cyclohexane solution were studied.

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  • 工作研究了1,2-丁二PB天然橡胶NR等量并用共混胶性能

    The properties of the blends of 1,2-polybutadiene ( PB ) and natural rubber ( NR ) at equal loading were studied.

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  • 将端羟基丁二氨酯进行改性,提高了氨酯基体表观联度推进剂拉伸强度

    When blend modification of HTPB and PU are done, the apparent crosslinking density of PU matrix in - creases, and the tensile strength of propellant enhances.

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  • 介绍单体羧酸减水剂合成对合成的羧酸减水剂进行了性能考察。

    Acrylate monomer with polyoxyethylene group chain and a series of polycarboxylic superplasticizer were synthesized and their water-reducing effects were investigated.

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  • 研究相对分子质量反式1,4异戊二(LMTPIW)橡胶配方中的应用

    The application of low molecular weight trans 1, 4 polyisoprene wax (LMTPIW) to rubber compound was investigated.

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  • 本文对1,2 -丁二介电松弛进行了平面分析

    Complex plane analysis for the dielectric relaxation of 1, 2-polybutadienes was performed.

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  • 研究了悬浮合成环氧化反式-1,4-异戊二ETPI结构性能

    Structure and property of epoxidized trans-1,4-polyisoprene(ETPI) by water phase suspension method was studied.

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  • 我们知道丁二(PB)胶乳苯(SBR)胶乳橡胶粒径控制最终产品冲性能加工性能的重要指标。

    It is widely recognized that, in such cases, the particle diameter of rubber (PB latex or SBR latex) greatly governs the impact resistance and processability of the final products.

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  • 探讨烷氧基硅烷封端率及端羟基丁二含量单组分密封力学性能硬度时间影响

    The effects of different silane end-capped ratios and HTPB content on mechanical properties, hardness and surface dry time of the sealant were discussed.

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  • 分析顺式丁二橡胶(LCPB)结构性能特点

    The characteristics of the structure and properties of low cis-polybutadiene (LCPB) were analyzed.

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  • 综述双环戊二机理,反应注射成型技术概况

    The polymerization mechanism of PDCPD and technical survey of RIM are reviewed.

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  • 综述羧酸衍生物醇盐氧化成键规律,重点立体选择性的过程

    Stereoselective oxidative dimerization of the enolate of carboxylic acid derivatives is summarized focusing on the stereoselectivity of the process.

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  • 合成甲基氯化铵作为阳离子添加剂应用于彩色喷墨打印纸涂层测定成纸的各项性能。

    The synthetic product poly-DMDAAC was subsequently prepared based on free radical solutions polymerization, which was then applied as cationic additives in ink-jet paper coating.

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  • 文章论述了催化剂结构丁二环三反应活性选择性影响

    The effects of phosphine ligand and the structure of catalysts on the selectivity and reactivity of the cyclotrimerization were discussed.

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  • 文章论述了催化剂结构丁二环三反应活性选择性影响

    The effects of phosphine ligand and the structure of catalysts on the selectivity and reactivity of the cyclotrimerization were discussed.

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