高分子

Turthermore, the technological measures in ensuring beer abiological Stability were given in the production of Saecharification, fermentation, filter and filling and package.

就啤酒酿造过程中的蛋白质、多酚、氧物质对啤酒非生物稳定性的影响机理进行了分析阐述，说明了高分子蛋白质和多酚物质是影响啤酒非生物稳定性的主要因素；并就糖化、发酵、过滤、灌装各生产工序提出了工艺控制措施以保证啤酒的非生物稳定性。

A novel β-cyclodextrin graft copolymer was synthesized by immobilizing β-CD onto the linear chain of PVA through acetalization reaction.

利用缩醛化反应将醛基化β环糊精固载到聚乙烯醇大分子链上，合成出了聚乙烯醇固载β环糊精的线性环糊精高分子，其最佳反应条件是反应时间 2h ，温度 70℃，β CD 6 CHO与PVA的质量比小于等于 4∶1。

METHODS: Mono-6-O-tosyl-β-CD and mono-6-formyl-β-CD were synthesized separately. Silylatedβ-CD was loaded onto polymer chain of PVA by acetalization to produce PVA containingβ-CD linear high polymer.

分别合成单6-对甲基苯磺酰β-环糊精酯和单6-甲酰基β-环糊精，利用缩醛化反应将醛基化β-环糊精固载到聚乙烯醇大分子链上，合成出聚乙烯醇固载β-环糊精的线性环糊精高分子。

objective to determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of edaravone, by gas chromatography.methods sample solution was injected on a gdx column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.the residue was calculated by the external standard method.results the linearity was good over the range of 25 μg/ml～400 μg/ml,with the correlation coefficient of acetone being 0.996 and the average recovery 96.8%.conclusions the method was proved to be simple,rapid,practical and highly sensitive.it is an efficient method for the quality control of acetoacetic ester.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量。方法：采用固定相为二乙烯苯乙基乙烯苯型高分子多孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。结果：该方法在丙酮浓度范围在25 μg/ml～400 μg/ml内呈良好的线性关系，响应曲线相关系数为0.996，平均回收率为96.8%。结论：本法简便，快速、实用，灵敏度高，可有效地用于乙酰乙酸乙酯的质量控制。

Objective To determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of Edaravone, by gas chromatography.Methods Sample solution was injected on a GDX column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.The residue was calculated by the external standard method.

摘要］ 目的：用气相色谱法测定依达拉奉合成起始原料乙酰乙酸乙酯中丙酮的残留量方法：采用固定相二乙烯苯乙基乙烯苯型高分子孔小球（直径为0.18 mm～0.25 mm），氮气为载气，用外标法测定乙酰乙酸乙酯中残留丙酮的含量。

N-phenyl maleimide,1-Phenyl-1H-pyrrole-2,5-dione,N-phenylmaleic imide、Maleimidobenzene is abbreviated NPMI or N-PMI,pale-yellow aciform crystals.The melting point is 88～92℃.NPMI is a kind of heat resisting organic monomer,and can increase material thermostability by raising intemal rotation resistance of macromolecular,using its special molecular struture.

N-苯基马来酰亚胺俗称&单马&，英文名称为；N-phenyl maleimide、1-Phenyl-1H-pyrrole-2，5-dione、N-phenylmaleic imide、Maleimidobenzene，英文缩写NPMI，淡黄色片状晶体，熔点为88～92℃，是近年发展起来的一种耐热有机单体，由于它具有五元环状平面结构，嵌入高分子链中可增加链的内旋阻力，从而提高材料的耐热性。

In this paper,we demonstrated the first example of the synthesis of the eopolymer and its hydrogels of Poly(acryl amide-co-acrylamido azobenzene) P(AAm-co-AAABwhich contains groups of azobenzene in the side chains.

本文提出一种合成分子侧链含有偶氮苯基团的P(AAm-co-AAAB)共聚高分子及其凝胶的新方法。

It will be a new generation adsorbent instead of activated carbon, but its research in engineering needs to be done better.

最后展望了高分子吸附剂的研究及应用前景，提出了今后吸附树脂的研究发展方向。

With the addition of the agglomerant solution, the particle emission concentration in flue gas decreased significantly.The submicron particles agglomeration technology whose cost is cheaper can control the emissions of submicron particles and decrease the opacity of flue gas obviously without changing the operation parameters of the ESP.The particle agglomeration technique is a useful and promising method to control the emission of submicron particles from coal combustion.

结果表明，化学团聚对于超细颗粒物的脱除具有显著的作用，喷入团聚促进剂后的烟尘排放浓度远比无团聚和喷水的情况要低；团聚促进剂的高分子链对超细颗粒的吸附絮凝作用促进超细颗粒团聚，显著降低烟尘排放浓度，实现超细颗粒物经济高效脱除，达到国家新的烟尘排放标准。

A treatment of landfill leachate wi th an inorganic -macromolecular -flocculant copolymers of Aland Fe(CPAFC,B =1.5,0.1mol·L -1 )was studied.

采用室内试验方法，研究了无机高分子絮凝剂--铁铝共聚物( B=1.5， 0.1mol· L- 1)对太原市新沟垃圾卫生填埋场渗滤液的絮凝处理效果。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。