聚碳酸酯

In this paper, the effect of silicane coupling agent γ-aminopropyl triethy-oxysilane(A-1100) on interface properties of short glass fibre reinforced polycarbonate is report-ed.

针对短切玻纤增强聚碳酸酯体系，研究了硅烷偶联剂γ-氨丙基三乙基硅烷(A-1100)在上述复合体系中的界面偶联特性。

The stereochemical studies of PPCs derived from the copolymerization of CO_2 with chiral PO at various conditions reveal that the polymer enantioselectivity is proportional to its head-to-tail linkages with regard to regioselective ring-opening of the epoxide.

通过研究聚碳酸酯的立体化学发现聚合物的对映体选择性与环氧丙烷区域选择性开环存在一定的影响作用。

Di-phenol A is a main raw material for producing synthetic materials such as poly-carbonate, epoxy resin and poly sulphone.

项目介绍：双酚A是生产重要的合成材料聚碳酸酯，环氧树脂及聚砜的主要原料。

In chapter 2 and 3, the ring-opening polymerization of 2, 2-dimethyl-trimethylene carbonate and trimethylene carbonate catalyzed by IMPPL were explored.

生物可降解聚碳酸酯在手术缝合线，骨固定材料和药物控制释放等领域的研究和应用越来越受到重视。

I recommend direct lighting, quartz or polycarbonate where UVA is essential.

我建议直接照明系统，石英或聚碳酸酯的地方长波紫外线是必不可少的。

The present invention is the preparation of low-temperature resistant intermingled polycarbonate material.

本发明提供一种新的耐低温聚碳酸酯共混材料的制备方法。

If your focus is on the industry part and the limos, the advances, the lawyers, polycarbonate and vinyl, it's horrible.

如果你关注与产业部分、豪华轿车、预付款、聚碳酸酯和乙烯，这是可怕的。

Lower microwave power and shorter irradiation time were more propitious to obtain products with higher molar mass.

在聚碳酸酯主链上引入聚乙二醇链段可以提高其亲水性，可望改善其降解性能。

Chiral SalanCrX complexesa saturated version of SalenCr(ⅢX are designed,and in conjunction with an ionic quaternary ammonium salt or organic strong base can efficiently catalyze the asymmetric,regio-and stereoselective alternating copolymerization of CO_2 with rac-PO at mild conditions to afford isotactic-enriched polycarbonates with～95%head-to-tail linkages and moderate enantioselectivity.

本论文在Salen构型配体的基础上，设计合成了一系列手性Salan型铬配合物，并将其与季铵盐/有机强碱组成亲电-亲核双组分催化体系，在室温下可以有效的催化CO_2和环氧丙烷的不对称交替共聚反应，实现了CO_2和环氧丙烷的不对称交替共聚反应的区域和立体化学控制，得到95%的头尾连接单元和中等光学纯度(对映体过量值ee%≈70%)的全同结构的聚碳酸酯。

Pass through related viscosity data contrast and synthesis product has have together flame retardant assemble carbon sour ester industrial sample closes glue to equally divide son quantity 2000-6000 , the 3-9 of degree of polymerization; At the same time have higher melt temperature, yield reaches 89%.

通过相关黏度数据对比，合成产品具有同现有阻燃聚碳酸酯工业样品相近的粘均分子量2000-6000，聚合度3-9；同时具有更高的熔融温度，产率达89%。

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。