isoprene

When the reaction temperature and time of cycloaddition were 10-25 ℃ and 7-10 d, respectively, excess isoprene made the reaction more sufficient and increased the conversion rate of dichlorophenylphosphine.

当二氧苯基膦与异戊二烯的环化加成反应温度和时间分别为1025℃和710d时，过量的异戊二烯使反应更加充分，同时提高了二氧苯基膦的转化率。

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Study of chain transfer reaction of isoprene using potassium phenoxide as promoter

酚钾盐为助引发剂的异戊二烯调聚链转移反应研究

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The results of this paper have great significance to the butadiene-isoprene rubber development, cis-1, 4-polybutadiene performance improvement, filling up the gap of domestic rubber species as well as exploiting its commercial application market.

本文的研究结果对开发丁-异戊共聚橡胶，改进顺丁胶的性能，填补国内橡胶品种的空白，开拓广阔的应用市场都具有重要的现实意义。

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Development proposals of isoprene rubber in China were put forward.

结合我国的实际情况,提出了发展我国异戊橡胶的几点看法.

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Using solanesol, isoprene and coenzyme Q 0 as main raw materials, title compound coenzyme Q 10 was synthesized through reactions with three steps i.e. bromination, addition and condensation.

以茄尼醇、异戊二烯和辅酶Q0作为主要原料，通过溴化、加成和缩合3步反应合成了目标产物辅酶Q10。

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Study on the synthesis of the symmetrical two-end tapered block copolymer of isoprene-styrene ⅰ Study on the kinetic behaviours of the copolymerization

对称型双端过渡态异戊二烯-苯乙烯嵌段共聚物的研究&Ⅰ共聚合反应动力学研究

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Polymerization of isoprene in the presence of ( NdCl 3 + FeCl 3 ) n Phen HAl-( i-Bu ) 2 was studied.

本文报道由(NdCl_3+FeCl_3 ) ·nphen -HAl ( i -Bu ) _2催化体系引发异戊二烯聚合的结果.

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Polymerization of isoprene with tetrabutyl titanate and supported titanium catalyst system

钛酸丁酯/负载钛体系催化异戊二烯聚合

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The results showed that the catalyst combined with diethyl phosphite ( DEP) exhibited the highest activity in isoprene polymerization in hexane at relatively high temperature ( 50 ℃).

结果表明，以亚磷酸二乙酯（DEP）为第三组分的催化体系，在己烷中于相对较高温度（50℃）下的催化活性最高。

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With the light-temperature model put forward by Guenther, isoprene emission from Chinese forest ecosystem was estimated.

本文应用Guenther的光温影响模型，对1993年中国森林生态系统的异戊二烯排放量进行了估算。

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The application of liquid isoprene rubber ( LIR) partly replacing NR by equal weight in bead filler of PC tire was investigated.

研究液体聚异戊二烯橡胶（LIR）等量部分替代NR在轿车轮胎三角胶中的应用效果。

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Using WAXD method, the crystalline behaviours of poly ( butadiene-co-isoprene) ( Ln& PBI) at low temperature were studied.

本工作用WAXD法对以环烷酸稀土盐为主的催化剂合成的丁二烯和异戊二烯共聚物（Ln-PBI）在低温下的结晶行为进行了研究。

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Monomer reactivity ratio of butadiene-isoprene copolymerization and structure of copolymer

负载钛系催化丁二烯-异戊二烯共聚合的竞聚率及共聚物的结构

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A Study of Reaction Degree for Isoprene-Maleic Anhydride Addition Reaction by Capillary Gas Chromatography

毛细管气相色谱法研究异戊二烯和马来酸酐的反应程度

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The optimum operating condition and reaction medium of isoprene trimerization were established.

实验确定出了异戊二烯催化三聚的适宜操作条件和反应介质。

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Mechanism of anionic polymerization of isoprene in cyclohexane-dioxane

异戊二烯在环己烷-二氧六环中的负离子聚合机理

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Terpenoid, consisting of isoprene units, is one kind of hydrocarbons or their oxygen-containing derivatives in the nature.

萜类化合物是指自然界中分子式为异戊二烯单位倍数的烃类以及其含氧衍生物。

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The effect of liquid isoprene rubber ( LIR) on properties of NR/ BR compound, physical properties and thermal air aging property of its vulcanizate was investigated and compared to that of aromatic oil.

以液体聚异戊二烯橡胶（LIR）为反应型增塑剂，研究LIR对NR/BR混炼胶性能、硫化胶物理性能和耐热空气老化性能的影响，并与添加芳烃油的NR/BR并用胶进行对比。

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ethane, isobutane, butane, cyclopentane, isopentane, toluene, ethylbenzene, m/ p-xylene, 1,2,4-trimethylbenzene, ethylene, propylene and isoprene are the main vocs in ambient air in jinan.

乙烷、异丁烷、正丁烷、环戊烷、异戊烷、甲苯、乙基苯、间/对二甲苯、1,2,4-三甲基苯、乙烯、丙烯与异戊二烯是济南市环境空气中主要VOCs。

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Isoprene could be deeply hydrogenated to isopentane on nickel catalyst.

异戊二烯在镍基催化剂作用下可深度加氢为异戊烷.

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the molecular complexed constants of sulfolane and dimethylsulfolane with cyclopentadiene, benzene and isoprene by gas-liquid chromatography

气液色谱法测定环丁砜、二甲基环丁砜与环戊二烯、苯、异戊二烯的分子络合常数

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Isoprenoid ( terpene ): Class of organic compounds made up of two or more structural units derived from isoprene.

类异戊间二烯化合物(亦称 烯 ): 由两个或多个异戊间二烯单元组成的一类有机化合物.

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Microstructure of product obtained from anionic polymerization of isoprene using Et2O as polar additive

异戊二烯-环己烷-乙醚体系负离子聚合产物的微观结构

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The emissions of isoprene,α-pinene and β-pinene from soil are very small, with the ratio of 0.2%, 0,3.0% to a fixed ACSP at similar solar visible radiation and leaf temperature, respectively.

土壤异戊二烯、α蒎烯、β蒎烯等的排放很小，分别占相近可见光辐射和温度条件下固定羊草样地排放的0.2%、0、3.0%。

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The Calculation of Isoprene Emission Flux under Cloudy Sky Conditions and the increase of the flux by the clear plastic film mulch.

多云天气异戊二烯排放通量的计算地膜覆盖使土壤中N2O排放通量增加。

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Microstructure of product obtained from anionic polymerization of isoprene using THF as polar additive

异戊二烯/THF负离子聚合产物的微观结构

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polymerization of styrene and isoprene with rare earth schiff base complexes; synthesis and characterization of hydroxyl-terminated polyisoprene and its copolymer

稀土席夫碱配合物催化苯乙烯、异戊二烯聚合端羟基聚异戊二烯及其共聚物的合成与表征

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Evaluation of the inhibiting polymerization of isoprene using tert-butyl catechol inhibitor

对叔丁基邻苯二酚对异戊二烯阻聚效果的评价

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The mechanism of anionic polymerization of isoprene with cyclohexane and dioxane as solvent was studied and improved by experiment.

推导了异戊二烯在环已烷-二氧六环混合溶剂中的负离子聚合机理，并通过实验进行了验证。

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The epoxidation of styrene-isoprene block copolymer ( SIS ) in different organic solvents was studied.

研究了聚苯乙烯 - 聚异戊二烯-聚苯乙烯三嵌段共聚物 ( SIS ) 在不同溶剂中的环氧化反应.

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