• 羟基聚硅氧有机工业重要产品之一

    The hydroxide polysiloxane is one of the important products of the organic silicon industry.

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  • 羟基聚二甲基硅氧(PDMS)基体,加入不同填料助剂制备室温硫化硅橡胶涂层

    With hydroxyl group terminated PDMS on both side as feedstock, adding several kinds of fillers and adjuvants, the room-temperature vulcanized silicone rubber coatings are prepared.

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  • 采用Z捏合,将端乙烯基硅橡胶气相白炭黑羟基硅氧进行炼,制备了强度硅橡胶混炼

    High strength silicone rubber compounds were prepared using vinyl-terminated silicone rubber, fumed silica and hydroxy siloxane by intensive mixing method in Z blade mixer.

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  • 综述了甾体化合物11 -位引入羟基各种化学合成方法,主要包括酮基还原法、上脱卤素法、硼双氧水法、过氧化-还原法

    Introduction of 11-hydroxy group into steroids by chemical methods, such as keto-reduction, halogenation-dehalogenation, borane-hydrogen peroxide and peroxidation-reduction are reviewed.

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  • 探讨氧基硅封端率及端羟基聚丁二烯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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  • 本文即从方面着手,开展了固定化脂肪酶催化15羟基十五酸甲酯合成十五内酯的研究

    So in this research, synthesis of cyclopentadecanolide with Methyl 15-Hydroxy-pentadecanate by immobilized lipase had been studied.

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  • 聚糖进行X射线光电子能谱分析表明随着卤代试剂反应活性的增高,发生壳聚糖羟基取代反应增多。

    X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.

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  • 采用羟基树脂通过TDI对聚甲基硅氧进行化学改性,红外光谱、重分析等手段对改性产物进行了表征

    Hydroxyl resin is used to modify polymethylsiloxane through the action of TDI and the products are characterized by IR and TGA.

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  • 用来将聚二甲基硅氧两端活性较弱羟基转变高活性的异氰酸酯基。

    The chain extender is used to convert the low-activity hydroxy groups of both ends of the polydimethylsiloxane into high-activity isocyanate groups.

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  • 基- 3,4,5 -三羟基-基酰胺衍生物,它们的制备包含它们组合物用途

    Derivatives of 2-alkoxy-3, 4, 5-trihydroxy-alkyl amides, preparation and use thereof, and compositions containing the same.

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  • 内毒素工作标准除含有3-羟基十四外,还含有3-羟基十二酸,说明含有非大肠杆菌的细菌

    There was 3-hydroxydodecanoic acid in 20 EU/tube working standard endotoxin, which indicated the presence of impurity of bacterium source.

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  • 内毒素工作标准除含有3-羟基十四外,还含有3-羟基十二酸,说明含有非大肠杆菌的细菌

    There was 3-hydroxydodecanoic acid in 20 EU/tube working standard endotoxin, which indicated the presence of impurity of bacterium source.

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