羟基酸

In the reactions of IC with wood, the reaction rate significantly influenced by the tridimentional inerratic structure of cellulose, while wooden hydroxy has less effect.

在木材与异氰酸酯反应过程中，纤维素的立体规整性结构对于反应进行的快慢起主要作用，羟基的作用则相对较弱。

When changing the flexible segment -- hydroxyl polyether's type and its molecular weight, and rigid segment -- aromatic isocyanic acid ester's type and function, solid's intensity, the heat resistance, the compressive strength and other performance will also vary.

改变氰凝预聚体结构中的柔性链段——端羟基聚醚的种类和分子量，或调节刚性链段——芳香族异氰酸酯的种类和官能度时，对固结体的强度、耐温性、抗压强度和其它性能可以进行控制。

This project mainly exploratorily studied that polyurethane was produced via condensation reaction between polyhydroxylated compounds and methyl carbamate, which was firstly synthesized by dimethyl carbonate and amines. The process is a green route because it turns away the synthesis and the utilization of toxical isocyanic acid ester.

本项目主要探索性地研究了碳酸二甲酯和胺类化合物反应生成氨基甲酸甲酯，然后氨基甲酸甲酯再和多羟基化合物直接反应得到聚氨酯材料，从而避免了异氰酸酯的合成和使用。

They may contain long carbon chain with hydroxy or amino, unsaturated fatty acid, phenyl glucoside, mannitol, benzoic acid, isomaltose and galactose estimated by particular analyzed chart.

含有带羟基或氨基的长碳链、烯酸结构、异麦芽糖、β-D-苯基葡糖苷、甘露醇、苯甲酸和β-D-半乳糖成分。

The activated hydroxyl of the rare earth complex reacted with the -NCO of the of isophorone diisocyanate,and a new bonding-type rare earth polymer materials was prepared. We studied the optical property, thermodynamic properties of the materials were, and the results obtained show that the materials have high light transmittance and thermal stability as well as good fluorescence properties.

同时利用配合物的活性基团羟基与异佛尔酮－二异氰酸酯中的异氰酸根活性基团进行反应，制备出一种新型的键合型稀土高分子材料，并考察了该材料的光学性能、热力学性能等。

Fourteen new pyrethroids containing isoxazole were designed and synthesized from 4-isopropyl-3-substituted phenyl-5-hydroxyl isoxazoles as major material, whose structures were also characterized by IR, 1H NMR and elemental analysis.

以4-异丙基-3-取代苯基-5-羟基异噁唑和3-苯氧基苄基溴为原料，三乙胺为缚酸剂，设计并合成了14个未见报道的4-异丙基-3-取代苯基-5-异噁唑基-(3'-苯氧基)苄基醚。通过红外光谱、核磁共振、元素分析等手段，确证了它们的化学结构。

The styrene-acrylic emulsion was synthesized using monomer styrene,butyl acrylate,2-hydroxy propylacrylate and monobutyl itaconate.

采用苯乙烯、丙烯酸丁酯及丙烯酸-2-羟基丙酯作主单体，衣康酸单丁酯作功能单体合成了苯丙乳液，比较了功能单体MB I及丙烯酸对苯丙乳液性能(包括耐水性、表面张力、钙离子稳定性等)的影响，用透射电镜观察了乳胶粒子形态。

The influence of different modifier contents,n∶n,reaction temperature and reaction time on aliphatic aqueous dispersion of blocked polyisocyanate were discussed while using methyl ethyl ketoxime as blocker and monohydroxyl poly as hydrophilic modifier.

以甲乙酮肟为封闭剂，以单羟基聚环氧乙烷为亲水改性剂，分别考察了不同改性剂用量、n∶n、反应温度、反应时间对脂肪族水分散封闭型多异氰酸酯合成的影响。

Models of K562 cells inducing differentiation to lineages of megakaryocyte, erythrocyte and macrophagocyte were established with inducers TPA (tetradecanoylphorbol 13-acetate), Hu and HMBA respectively.

用Western blot检测以十四烷酸佛波醇-13－乙酯(tetradecanoylphorbol 13-acetate， TPA)、羟基脲(hydooxyurea， Hu)及六甲基双乙酰胺(hexamethylene bisacetamide， HMBA)为诱导剂分别诱导K562细胞向巨核细胞系、红细胞系及巨噬细胞系分化时bcl-6表达变化，用PCR、克隆、直接DNA测序方法分析bcl-6基因5'调控区序列变异情况。

Containing hydroxyl and mercapto alkyl sulfatessubstituting group respectively, BRS2 and BRS3 all have higher water-solubleproperties.

另外两种胆红素衍生物(BRS2和BRS3)，分别为末端磺酸基和二羟基取代，具有较好的水溶性。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。