single-strand polymer

Plasticizer DOTP was prepared from ethylene glycol residue ( major component is PET low polymer) using single step process in which alcoholysis and ester interchange were combined.

以聚酯生产中产生的下脚料&乙二醇残渣（主要含PET低聚物）为原料，采用辛醇合并醇解、酯交换一步法工艺，合成了增塑剂DOTP。

The results showed the effect of binary compound flooding systems equivalent to the ternary systems' was better than that of single polymer system in the homogeneous cores.

实验结果表明在均质岩心中二元、三元复合驱体系的驱油效果相当，且均好于单独聚驱效果。

Single sterile package and single use only, is made of medical grade non-toxic polymer material.

无菌单只包装，医用高分子材料制造，安全无毒，供一次使用。

The effect of dispersion of the combine dispersing agent is better than the single one, the effect of adding 0.8% Byk-190 ( a high polymer disperse agent) and SDBS ( sodium dodecyl benzene sulphonate) is the best.

使用复合分散剂的效果要优于单一分散剂，分散剂BYK-190与SDBS（十二烷基苯磺酸钠）在加量为0.8%时分散效果最好。

Multi-layer Polymer Injection Allocator with Single-tubing and Sliding Sleeve Switch

聚合物单管多层滑套开关配注器研制

Poor mechanical property of single macromolecule polymer material limit its clinical application.

单纯的聚合物高分子材料，由于力学性能低，使其应用受到限制。

A single layer of the polymer , about onethousandth of a gram, is enough for the test.

薄薄的一层聚合物, 其重量只有千分之一克, 但已经足够用于检测了.

At the same time, considering the reserve ratio of single sand layers with net thickness over one meter, the paper has also established a polymer flooding EOR value evaluation model.

同时考虑油层中有效厚度大于1m单砂层储量的比例，建立了聚合物驱采收率提高值评估模型。

In the heterogeneous cores, the two weak-alkali ternary compound flooding systems had the same displacement effect as the two non-alkali binary compound flooding do, both of which were better than single polymer system.

在人造非均质长岩心中，两种弱碱三元体系的驱油效果与两种无碱二元驱油体系驱油效果相当，且均好于单独聚驱效果。

Rigid conjugated main chain is an important feature of conjugated polymers, it can formed large conjugated π electron system, so that the charge can transfer within the molecule. Thus, a single quencher molecule can cause a super-quenching of the entire polymer chain.

含有刚性共轭主链是共轭聚合物的重要特征，能在分子内形成大的共轭π电子体系，从而使电荷在分子内进行传输，单个猝灭剂分子就足以引起聚合物荧光的超猝灭。