聚苯乙烯

In addition there aport parallel, seriesport , a connector VGA DB15, two ports PS/2, four ports USB 2.0, a FireWire connector , a connector RJ45 for network .

此外，还有一个港口并行，串行接口，一个接头VGAdb15，两个港口聚苯乙烯/2，四个港口的USB2.0，火线接头，接头RJ45网络。

According to the physical aging behavior of rapidly quenched atactic polystyrene , it was found that dual amorphous phases with quite different properties were formed due to the internal stress: free amorphous phase and constrained amorphous phase.

通过研究快速淬冷无规聚苯乙烯的物理老化行为发现，在此试样中由于内应力的存在而形成了两种性质大为不同的非晶区：自由非晶区和受限非晶区。

Combining PRISM theory, MD simulation and Variational method, a single-site semi flexible model is proposed to describe atactic polystyrene melt.

结合PRISM理论、MD分子模拟和变分法，得到了可以描述聚苯乙烯熔体的单点半柔性链模型，提出了一个研究实际聚合物体系的有效方法。

The stess yielding mechanism of aged atactic polystyrene was studied by use of mechanical tension, differential scanning calorimetry and solvent-swelling.

利用机械拉伸、示差扫描量热以及溶剂溶胀等方法研究了物理老化后的无规聚苯乙烯的应力屈服行为，并从凝聚缠结的观点对实验结果进行了解释。

Results of DSC determinations show that an adequate content of atactic polystyrene is favourable of the crystallization of isotactic polystyrene,but the addition of more aPS linearly decreases the crystallinity of iPS because of the dilution effect.

DSC测定表明，产物中的无规物有利于等规聚苯乙烯结晶，但对结晶的熔点有降低作用。向产物加入更多的aPS则由于稀释效应而使iPS的结晶度线性下降。

Polystyrene synthesized by Nd〓/MgBu〓·AlEt〓/HMPA is atactic, which is confirmed by its FT-IR and NMR spectra.

采用红外光谱和核磁共振谱表征了稀土催化合成的聚苯乙烯的立构规整性，表明为无规结构。

For example, there is only local cooperative organization between polymer segments of atactic poly in the middle-sized solvent poly with molecular weight 200g/mol (PEG200). But for the stereo-regular isotactic polystyrene, pronounced content of 3〓 helix can be found in its middle-sized solvents.

例如，无规聚甲基丙烯酸甲酯在聚乙二醇（分子量为400）中分子溶剂中表现为链段的局部协同组织，而等规聚苯乙烯在邻苯二甲酸二辛酯、氯代十四烷等中分子溶剂中则出现相当含量的3〓螺旋构象。

The invention pertains to the field of chemical technology, which more particularly relates to a catalyst preparation method of Polystyrene by coordinating an type of bidentate ligand and a transition metal.

本发明属于化工技术领域，具体涉及一类型双齿配体与过渡金属配位的催化剂制备聚苯乙烯方法。

It should be possible to improve McAfee's protection by configuring HIPS rules, but it takes a lot of expertise and time to configure the rule-based HIPS and we conducted our testing with basic HIPS settings in place, Cascadia Labs wrote in the report.

应当能够改善配置HIPS的规则McAfee的保护，但它需要的专业知识和时间来配置规则为基础的许多高抗冲聚苯乙烯我们进行了我们的基本HIPS的地方设置在测试，卡斯凯迪亚实验室在报告中写道。

Further more, to make the hybrid microspheres with good dispersibility in aqueous media, 3-propyl triethoxysilane was added to copolymerize with St and DVB, and after hydrolization the microspheres with silanol groups on the surface were obtained, which can be well dispersed in water and used for cell imaging.

进而将3-甲基丙烯酰氧基丙基三甲氧基硅烷作为共聚单体，得到了表面硅羟基功能化的聚苯乙烯荧光微球，改善了微球在水相中的分散性，并将此类荧光功能微球成功用于细胞成像。

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。