苯乙烯

It was found that the resulting PEG-PAN/PSt particles have unusual form, distribution uniform in diameter and dispersion stability in water.

进而根据实验结果建立了PEG大分子单体与苯乙烯／丙烯腈单体的质量比和颗粒大小间的定量关系，用于预测控制颗粒直径的聚合反应条件。

Urethan resin for better stability, but business card printing and membership card making suitable to their needs and less soluble Li anzhai and other styryl modified monomaleate resin, water-based Amino resins, and polyvingl acid and carboxymethly celluiose, and so on, these polymer resin generally with the-COOH,-OH,-NH

氨基甲酸乙酯树脂的稳定性较好，但制卡和会员卡制作适性和可溶性要略差一些，其它还有用苯乙烯改性马来酸树脂、水性氨基树脂以及聚乙烯酸和羧甲基纤维素等，这些高分子树脂一般均含有-COOH、－OH、－NH

C. Functionalization of [60]Fullerene with Vaporous Reagents via Its Calix[8] arene Complex Supramolacular complexes are applied widely in synthesis chemistry.

结果表明，它们均是有效的硅氢化催化剂，并具有某些独特的催化性能，如在催化苯乙烯的硅氢加成时，以高达85％-100％的区域选择性得到α-加成物。

S Vinylidene chloride/acrylonitrile/styrene suspension terpolymer was synthesized with AIBN as initiator.

VDC 丙烯腈苯乙烯三元悬浮共聚树脂便是常见用作制备泡沫材料的基体树脂之一[3～ 5] 。

Solubility of liquid blowing agent in vinylidene chloride - acrylonitrile - styrene terpolymer was determined under the condition of directly immersing the VDC polymer sample into the blowing agent.

研究了液体发泡剂种类、共聚物组成、浸渍温度对发泡剂在偏氯乙烯-丙烯腈-苯乙烯共聚物中溶解度的影响。

The analytic methods are also studied : the concentration of styrene monomer is analyzed by gas chromatography , and the molecular weight of polystyrene is analyzed by viscosimetry .

建立了为评定阻聚剂性能配套的快速分析方法--近红外分析方法，即在单剂和工业剂评定中预测苯乙烯含量和聚苯乙烯分子量的四个近红外分析模型。

T.G. Rials, M.P. Wolcott, and D.j. Gardner. 1994. Characterizing the Wood Fiber/Polymer Interface. Techniques in Experimental Mechanics Applicable to Forest Products Research.

阎昊鹏，秦特夫，1999，木材表面非极性化原理的研究Ⅱ，木材与苯乙烯接枝共聚过程中化学官能团和表面极性的变化，木材工业，13(6)：19-21

Second, the polymerization behaviors of alkoxyl substituted Cp titanocene for styrene syndiotactic polymerization were investigated.

其次，本文研究了烷氧基取代的茂钛络合物对苯乙烯间规聚合的催化作用。

This paper contains three parts: 1 Synthesis of novel titanium complexes; 2 Polymerization behaviors of alkoxyl substituted Cp Titanocenes as catalysts for styrene syndiotactic polymerization; 3 Polymerization behaviors of alkenyl substituted Cp Lanthanocenes as Methyl Methacrylate polymerization catalysts.

中文题名新型茂钛、噁唑啉钛络合物的合成、表征以及茂钛、茂稀土络合物催化性能的研究副题名外文题名 Synthesis，characterization of novel Cp，oxazoline titanium complexes and polymerization behaviors of titanocenes and lanthanocenes 论文作者张浩导师钱延龙黄吉玲学科专业应用化学研究领域\研究方向金属有机与均相催化学位级别博士学位授予单位华东理工大学学位授予日期2003 论文页码总数148页关键词金属有机化学稀土络合物噁唑啉类钛络合物茂钛络合物馆藏号BSLW /2003 /O627 /27 本论文包括三部分内容：1）有机金属钛络合物的合成；2）烷氧基取代茂钛络合物催化苯乙烯间规聚合的研究；3）烯基取代茂稀土络合物催化甲基丙烯酸甲酯聚合的研究。

To further study the chemical constitutes of lipophilic active parts, we prepared Alc95% and Alc50% according to original literature. 20 compounds were isolated by using macroporous resin, silica gel, polyamide, Sephadex LH-20, Rp-18, preparative TLC and preparative HPLC chromato-graphy. The structures of them were elucidated by means of physical and chemical properties, modern spectroscopic analysis techniques—UV、IR、 EI/MS、ESI/MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC. They are nine anthraquinones: chrysophanol (95-1), physcion (95-2), emodin (95-5), aloemodin (95-7), rhein (50-1), sennoside A or B (50-6),ω-hydroxylemodin (95-10), chrysophanol-8-0-β-D-glucoside (95-12), aloemodin-ω-0-β-D-glucoside (95-13); three phenanthaquinones: tanshinone ⅡA (95-3), cryptotanshinone (95-6), tanshinone Ⅰ(95-4); one isoflavone: 7, 3'-dihydroxyl-5' methoxyisoflavone (95-14) and protocaechuic aldehyde (95-9), protocaechuic acid (95-11), astragaloside Ⅳ(50-4), amygdalin (50-5), 2, 3, 5, 4'-tetrahydroxylstilbene-2-0-β-D-glucoside (50-3),-catechin (50-2), cinnamic acid (95-8). Among them, 3'-dihydroxyl-5' methoxyisoflavone (95-14) is a new compound.

经过溶剂萃取、大孔吸附树脂富集、Sephadex LH-20精制、制备TLC及Semi-pre HPLC等手段从中分离了20个化合物，利用理化性质和波谱技术(UV、IR、EI／MS、ESI／MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC)相结合鉴定了它们的结构，分别为9种蒽醌类化合物：大黄酚，大黄素甲醚，大黄素，芦荟大黄素，大黄酸，番泻苷A或B，ω-羟基大黄素(ω-hydroxylemodin)，大黄酚-8-0-β-D-葡萄糖苷(chrysophanol-8-0-β-D-glucoside)，芦荟大黄素-ω-0-β-D-葡萄糖苷(aloemodin-ω-0-β-D-glucoside)；3种菲醌类化合物：丹参酮ⅡA(tanshinoneⅡA)，隐丹参酮，丹参酮Ⅰ(tanshinone Ⅰ)；1种异黄酮：7，3'-二羟基-5'-甲氧基异黄酮（7，3'-dihydroxy-5' methoxyisofla-vone）以及原儿茶醛，原儿茶酸，黄芪甲苷(astragaloside Ⅳ)，苦杏仁苷，2，3，5，4'-四羟基二苯乙烯-2-0-β-D-葡萄糖苷（2，3，5，4'-tetrahydroxylstilbene-2-O-β-D-g1ucoside），Z—儿茶素，桂皮酸。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。