Studies on Preparation of Superabsorbent at a High Monomer Concentration

1、

It was found that conversion and molecular weight were decreased with the increase of monomer concentration.

研究发现：随单体浓度的升高，转化率和分子量同时下降。

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2、

The graft polymerization processes could be controlled by monomer concentration, UV-irradiation time and photoinitiator concentration.

接枝聚合过程可以通过改变单体浓度、紫外辐照时间以及光引发剂浓度来进行调控。

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3、

The relationships of molecular weight and monomer concentration, initiator concentration show that the polymerization reaction system has the characteristic of living polymerization.

分子量与单体浓度、引发剂浓度的关系说明，该体系具有一定程度的活性聚合特点。

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4、

Kinetic studies show that polymerization proceeds with first-order dependence on both monomer concentration and initiator concentration.

聚合反应的动力学实验表明单体和催化剂浓度对该聚合反应的反应速率都表现为一级。

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5、

The grafting percentage increases with the increasing of reaction time and monomer concentration.

反应时间长，单体浓度高，接枝率越高。

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6、

Effeets of monomer concentration and reaction time on the graft copolymerization were studied.

考察了单体浓度、发剂浓度、合温度对接枝共聚反应的影响。

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7、

The effects of monomer concentration, reaction temperature, initiator dosage on polymerization rate and intrinsic viscosity of product were investigated.

探讨了单体浓度、反应温度、引发剂用量等因素对聚合反应速率和产物特性黏数的影响。

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8、

Monomer concentration, 40% ( water system), respectively.

单体浓度为40%（水相）。

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9、

The inverse microemulsion polymerizations at the high monomer concentration

高单体浓度下反相微乳液聚合

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10、

The other preparation conditions, such as monomer concentration, temperature, and time of polymerization, were systematically studied.

本文还对其它制备条件，比如单体浓度，温度，聚合反应时间都进行了系统研究。

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11、

With the increase of monomer concentration, polymer particle size increases.

随着单体浓度的增大，聚合物粒子的粒径随之增大。

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12、

The influence of the monomer concentration, reaction temperature, concentration of initiator and retention time on the grafted ratio was studied.

通过对聚丙烯进行官能化，并主要研究了反应单体浓度、反应温度、引发剂浓度和停留时间对接枝率的影响。

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13、

The influence of monomer concentration on membrane performances for dehydration of ethanol was systematically studied.

系统研究了接枝单体浓度对膜的渗透蒸发分离性能的影响。

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14、

Investigated the influence of monomer concentration, initiator concentration, reaction temperature and time on grafting efficiency.

丙烯酰胺接枝共聚物，对单体浓度，引发剂浓度，反应温度和反应时间对接枝率的影响进行了研究。

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15、

Besides, it was also found that the wave length was related to the monomer concentration as well as to the concentration of active species.

280nm左右。此外，还发现吸收峰波长与活性种浓度和单体浓度有关。

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16、

It was shown by experiment that the reaction temperature and time, as well as the monomer concentration, had great effect on the reaction.

实验表明：反应温度、反应时间和单体浓度对接枝共聚反应影响很大。

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17、

The effects of initiator concentration, monomer concentration and temperature on the homopolymerization have been discussed.

讨论了引发剂浓度、单体浓度、温度对均聚合的影响。研究了两个单体均聚合反应动力学，提出了两个单体均聚合反应动力学方程。

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18、

The structure of the complex is determined by pH value and monomer concentration.

体系pH值和单体浓度是影响络合物结构的关键因素。

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19、

When the monomer concentration increased, the grafting rate, initial polymerization rate and final conversion rate increased, but the grafting efficiency decreased;

单体浓度上升，接枝率、初始聚合速率和最终转化率也上升，但接枝效率则下降；

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20、

The influence on the water absorbing capacity, such as monomer concentration, effect of catalyst, and initiator concentration, were investigated.

文中研究了单体浓度、催化剂效果、引发剂浓度对吸水能力的影响。

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