查询词典 MAA

Molecularly imprinted polymers of sulfamethazine(SM 2 ) were prepared with silica gel as a sacrificial material, methacrylic acid and 4 vinylpyridine(4 Vp) as functional monomers, glycol dimethacrylate as crosslinker. The polymer properties were investigated by static adsorption experiments. Scatchard analysis shows that the adsorption ability of MAA MIP is superior to that of 4 Vp MIP. The dissociation constant of MAA MIP is 9 59×10 -4 mol/L. The value of apparent binding a...

以磺胺二甲嘧啶为模板分子，分别用甲基丙烯酸和4乙烯基吡啶为功能单体，二甲基丙烯酸乙二醇酯为交联剂，采用牺牲硅胶法合成了磺胺分子印迹聚合物，通过静态吸附实验，系统研究了不同单体对聚合物识别性能的影响；Scatchard分析表明，以甲基丙烯酸为单体的聚合物具有较高的吸附能力，其离解常数Kd为959×10-4mol/L，最大表观结合位点数Qmax为3070μmol/g。

The influence of MAH,AA,MAA,AM and GMA on the surface hydrophilicity of PP product was studied by means of reactive extrusion process on twin screw extruder,where 1,1-bis (tea-butyl peroxy)-3,3,5- trimethylcyclohexane (LQ-CH335) was used as initiator,and MAH,AA,MAA,AM and GMA as graft monomers, and St as graft co-monomer.

塑料用涂料技术是塑料工业和涂料工业之间的一项新兴的边缘技术，塑料和塑料制品上涂敷涂料后可以延长使用寿命，提高各种性能，热固性塑料制品基本上能应用普通的涂装技术，涂上合适的市售涂料。

Secondly,UV spectrophotometry was adopted to research the combination action on SM_2 and SIZ with MAA and 4-Vp.The combination action of functional monomer with template molecules were produced in the results. Then,the prediction imprinting principle of SM_2 and SIZ were given. The diagrams of infrared spectrum were analysed in MAA and 4-Vp and IMPs of SM_2. It was discoved that the absorbability peak of C=C function group in the IMPs were turn to be very low ,but the function group of carboxylic acid and pyridyl in the IMPs were no evidence change, and the condition was created in the molecular recognition of MIPs. Thermal Analysis was adopted to research IMPs ,in which ,a better thermal stability and its decompose temperature were showed in the results.

其次，本文利用紫外分光光度法研究磺胺二甲嘧啶和磺胺异噁唑与甲基丙烯酸或4-乙烯基吡啶的结合作用，结果表明，溶液中的功能单体与模板分子之间产生了结合作用，并预测磺胺二甲嘧啶和磺胺异噁唑印迹机理；分别分析了功能单体甲基丙烯酸、4-乙烯基吡啶、磺胺二甲嘧啶和磺胺异噁唑分子印迹聚合物的红外谱图，经过对比发现制得的印迹聚合物中C=C双键峰很小，并且功能键羧酸键和吡啶氮没有明显变化，这为聚合物特异识别特性创造了条件；利用综合热分析仪，对分子印迹聚合物进行综合热分析，结果表明分子印迹聚合物具有较好的热稳定性，分解温度也较高。

When MAA was 20 phr, hardness, modulus and tear strength of the SBR vulcanizates incre...

大量填充Al3的SBR硫化胶的阻燃性能较好，氧指数受MAA用量的影响较小。

The influence of external environment, pH and temperature on MAA yeast was as same as baker's yeast.

通过在培养基中逐渐添加有机溶剂驯育得到能够耐受较高有机溶剂浓度的MAA酵母。

Results: The polymer taking MAA as functional monomer and acetic ether as solvent obtained higher selectivity for desloratadine.

结果：研究表明，采用MAA为功能单体，以乙酸乙酯做溶剂合成的地氯雷他定MIP对模板分子的结合性最佳。

MAA have a group of loyal committee members who are the backbone of our organization, it ' s an important team work for a non-profit group that rely on volunteers to keep going and a good relationship in our community.

我们有一羣忠心於协会的委员，是MAA的骨干与支柱，对非营利团体是很重要，对社区发展更需要吧！

MAA neutralized with different valence of cations totally have reinforcing effect on EPDM.

MAA的各类不同价态的阳离子盐对EPDM都具有优异的补强效果。

The graft reactant IPP g MAA was identified by means of IR spectra.

红外光谱证实了接枝物IPP－g－MAA的存在。

The effects of salt,pH and MAA content in the copolymer on the phase transition behaviors of copolymers were investigated by UV-visible spectrophotometry.

用光度法研究了其共聚物的LCST随体系盐浓度、pH及共聚物中MAA含量的变化关系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失