二聚的

Celery seed was taken as material. The effects of PEG treatment on vigor indicator and electrical conductivity had been studied.

以芹菜种子为试验材料，研究了不同浓度的聚乙二醇及其不同浸种时间对芹菜种子活力指标以及电导率的影响。

Hydrophobically modified anion polyelectrolytes based on Fenugreek gumwere prepared by fixation of dodecyl or cetyl chains onto carboxymethyl Fenugreek gum backbone via ester functions.

将十二烷基与十六烷基以酯键方式分别引入经羧甲基化改性的香豆胶大分子骨架上，制备了基于香豆胶的疏水改性阴离子聚电解质衍生物。

Hydrophobically modified anion polyelectrolytes based on Fenugreek gumwere prepared by fixation of dodecylor cetylchains onto carboxymethyl Fenugreek gum backbone via ester functions.

将十二烷基与十六烷基以酯键方式分别引入经羧甲基化改性的香豆胶大分子骨架上，制备了基于香豆胶的疏水改性阴离子聚电解质衍生物。

A new monomer,4-hexanoxyl-4′-undecylene-[10]-acyloxyazobenzene was synthesized using the main materials:phenol,underlenic acid,1-bromo- n -hexane, p -nitrophenol,thionyl chloride,by the substitution,reduction,couping and diazotization methods.A new polymer was prepared by hydrosilation reaction of poly (methylhy-drosiloxane) with the monomer.

以苯酚、十一烯酸、正溴己烷、对硝基苯酚和二氯亚砜为主要原料，通过取代、还原、重氮化和偶合等反应，合成了一种新的液晶单体 4-己氧基-4′-十一烯-[10]-酰氧基偶氮苯，并与聚通过硅氢加成生成一种新的高分子液晶。

The morphologies formed were characterized by SEM and DLS methods, and spherical particles with various sizes were observed.5. To obtain a amphiphilic dumbbell-shaped copolymer, we successfully synthesized dendritic-linear-dendritic triblock copolymers composed of linear polystyrene and poly dendrons.

树枝状共聚物最外层PSt-PNAS链段利用乙二胺和NAS活性酯的取代反应交联，同时，中间的聚丙交酯段被降解，得到纳米空心球，用SEM和DLS进行观测和表征。5。

The film made by PAn has some miraculous physical and chemical properties ( such as conductivity and electrochromism ,etc.), and could be potentially used in display devices ,secondary battery , gas separation, etc.

掺杂态聚苯胺特有的导电性、电致变色等物理化学性能，使其在显示器件、二次电极、气体分离等方面具有广阔的应用前景。

The optimum conditions were as follows: 1 Fe3+/Fe2+ was 1.70-1.75;2 the precipitant,25% ammonia water was used 20%-30%,under 35℃,pH10-11 and with a stirrer speed of 3000 r/min for 1 h;3 in the first package process with gelatin and agar,the optimum amounts was 0.050-0.060g/150mL at the temperature of 55-60℃ and pH of 9-11;In the f...

最佳工艺条件为：(1)Fe3+/Fe2+之比在1.70~1.75；(2)沉淀剂25%NH3.H2O过量20%~30%，温度35℃，pH值11，反应时间为1h；(3)琼脂的最佳用量为0.050~0.060g/150mL；包覆的最佳温度为50~60℃，pH值为9~11；聚乙二醇作为第二次包裹剂时，最佳温度为55℃，反应时间是1h，pH值为4~5；并用透射电镜、分光光度计、古埃磁天平等进行了初步表征。

When polyethylene glycols has a reversible heating and cooling, its super molecule structue will have some change in macroscale of its properties called phase transition.

在对聚乙二醇进行冷热循环处理时，其超分子结构会发生某种相的转变，从而改变宏观性质而具有特殊的蓄热调温性能。

The ultra-molecule of polyethylene glycols has some extent phase change after heating and cooling cycles.

在对聚乙二醇进行冷热循环处理时，其超分子结构会发生某种相的转变，从而改变宏观性质而具有特殊的蓄热调温性能。

The curing behaviors and the kinetics analysis of the polyethylene glycols modified unsaturated polyester have been examined by IR and DSC.

当转化率较高时，聚乙二醇／不饱和聚酯共混体系在一定程度上对不饱和聚酯的后固化起到了阻碍的作用。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。