• 医药中间体种类氰酸、氰酸处置盐、盐酸异丙盐酸异丙嗪

    Pharmaceutical Intermediates species: Sodium Cyanate, Potassium Cyanate, Subsalt of Heat Treatment, the Main Ring of Promethazine Hydrochloride, Promethazine Hydrochloride Side Chain.

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  • 本文合成带有酰胺水溶性聚丙烯酸树脂。

    A water soluble acrylic coatings with amide, carboxyl, ester and hydroxyl group on side-chain have been synthesized.

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  • 许多文献报道证实,庞大或具有形成氢键能力有利于聚合物主形成稳定螺旋构象从而赋予材料高度的旋活性某些特殊功能。

    In general, bulky side-chain and hydrogen bonding are in favor of the formation of stable helical conformation for polymers, which endows them with high optical property and some special performance.

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  • 依据液晶分子结构理论选择联苯作为介晶元,六亚甲柔性间隔合成丙烯酸侧链型液晶高分子

    Based on the liquid crystalline polymer theory, a kind of polyacrylate was synthesized by choosing biphenyl group as rigid nucleus of mesogenic unit and hexylidene as flexible spacing group.

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  • 通过IRNMR谱图分析,得知该聚合物含有的结构单元以及

    The IR and NMR spectra of the polymers indicated that the polymer structure contained ester and ketone units in the backbone, and a cyclic acetals as side chain.

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  • 合成了种新型的主4-乙烯吡啶型紫聚合物相应的小分子紫精,研究它们的电还原及光还原行为

    Three new types of side chain polyviologen, using poly 4-vinyl pyridine as main chain, were synthesized and their electroredox and photoreduction behaviors were investigated.

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  • 已经合成螺旋聚合物中,具有共轭双键功能的取代乙炔类聚合物更是引起了广泛兴趣。

    Among the synthetic helical polymers, polyacetylene derivatives with conjugated main chains and functional pendent groups, have gathered much more attention.

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  • 对于异常透气性影响提出了气体分子透过高分子节新的机理假设

    Considering this discrepancy in the effects of side groups on gas permeation, a hypothesis is proposed for the mechanism of gas molecule's transport in polymer linkage.

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  • 柠檬酸作为引入羧酸大分子中,合成一种新型聚羧酸系高效减水剂

    A new polycarboxylic acid type superplasticizer was synthesized by introducing citric acid to polycarboxylic acid molecule as branch in order to solve concretes slump-loss, bleeding and segregation.

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  • 此类柴油流动改进剂分布柴油的正构烷烃分布影响其效果的主要因素。

    It is indicated that the performance of the flow improver is influenced by the carbon distribution of the alkyl ester and then paraffin distribution of the diesel.

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  • 成像元件包含辐射吸收性化合物溶剂聚合物,所述聚合 物含有聚合物主磷酸、金刚烷这两种

    The imageable elements also include a radiation absorbing compound and a solvent-resistant polymer comprising pendant phosphoric acid groups, pendant adamantyl groups, or both.

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  • MNDO方法酰化组氨酸磷上交换反应侧链咪唑所参与六配位磷机理进行研究。

    The ester exchange reaction on phosphorus of N-phosphorylhistidine with primary alcohol has been studied by MNDO method.

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  • 旋转异构理论上,建立双高分子旋转半径的计算公式,由此得到聚甲苯乙烯均方旋转半径特征比长的关系,计算结果与实验数值十分一致。

    Using the rotational isomeric state theory, the mean square radius of gyration < S 2> and its temperature coefficient for the polymer chain with large side groups are derived.

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  • 旋转异构理论上,建立双高分子旋转半径的计算公式,由此得到聚甲苯乙烯均方旋转半径特征比长的关系,计算结果与实验数值十分一致。

    Using the rotational isomeric state theory, the mean square radius of gyration < S 2> and its temperature coefficient for the polymer chain with large side groups are derived.

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