聚合度

超低聚合度PVC树脂的生产状况及应用

The production situation and application of PVC resin with ultra low degree of polymerization

结果表明，PC类物质具有很高的抗氧化活性，高于儿茶素、绿原酸、莨菪亭；PC抗氧化能力与构成的单体种类和连接方式相关，且与聚合度呈正比例关系。

The antioxidant capacity had relationship with the kind of monomer and monomer connection mode , and was direct proportion to the degree of polymerization .

本文提出了一个新的聚合度分布函数，该分布函数包括三个参数a、b、P0。

In this paper a distribution function of polymerization degree is presented .

C高；高聚合度聚氯乙烯的加工性能

Studies on the Processability of High Polymerization Degree PVC

有盐体系中pH值对硅酸聚合度的影响

Effect of pH on Polymerization Degree of Silica in Salt System

高聚合度PVC改性电缆料的研制

A Study on the Development of Modified High DP PVC Cable Compound

缩短高聚合度PVC糊树脂聚合时间的研究

Studies on shortening polymerization period of PVC paste resins with high polymerization degree

不同合成方法生产的高聚合度PVC树脂的性能比较

Comparison among properties of PVC resins with high polymerization degree manufactured by different processes

采用聚合度为1300的PVC树脂为基体树脂，与高分子改性剂、增塑剂、填充剂等共混研制了软质PVC密封条的粒料。

By blending the PVC of polymerization degree 1300 with polymeric modifier and plasticizer , etc.

高聚合度软质PVC抗静电材料的开发

Development on Antistatic High-polymerization Degree Soft PVC

扩链剂应用于试制高聚合度PVC树脂工艺技术实验研究

Study on technological experiment of chain extender used in trial of high polymerization degree PVC resin

硬质高聚合度PVC的改性

Modification of Rigid HDP PVC

PVA平均聚合度波动因素分析及优化控制

Waving factors ' analysis of PVA average degrees of polymerization and therefor optimizing control

与高聚合度纤维素I相比，低聚合度纤维素I和II粉末对硬脂酸镁更敏感。

Low DP cellulose I and II powders , compared to the high DP cellulose I counterparts were more sensitive to magnesium stearate .

室内用壳聚糖氧化降解法得到了壳低聚糖，并采用HPLC方法分析了壳低聚糖的聚合度。

Depolymerization of chitosan resulted in chito-oligosaccharides , and degrees of polymerization ( DP ) was been analysed by HPLC in laboratory .

经凝胶渗透色谱法（GPC）测得思茅松树皮多聚原花青定的聚合度为4～21。

Degrees of polymerization ofthe polymeric procyanidin were determined by GPC method to be4-21 .

APP的平均聚合度大于150，粒度小于50μm。

The polymerization degree of APP can reach 150 and the average particle size of APP is below 50 μ m.

低转化率PVA相对高转化率PVA具有高的聚合度和线性程度，所得纤维力学性能更高。

PVA with low conversion had higher polymerization degree and linear degree as com-pared with PVA with high conversion ;

用高聚合度PVC树脂研制耐热120℃等级PVC电缆料

Preparation of PVC Cable Compound of the Grade Resistant to 120 ℃ Temperature by Using the PVC Resin of High Degree of Polymerization

当压力达到相同强度时，低、高聚合度纤维素II片比纤维素I片崩解快。

When compressed to comparable crushing strengths , the low and high DP cellulose II compacts disintegrated faster in comparison to the corresponding cellulose I compacts .

提出了粘度法间接测定聚磷酸铵（APP）聚合度的一种方法。

The method by viscosimetry to measure the polymerization degree ( DP ) of ammonium polyphosphate ( APP ) indirectly was presented .

主要研究了高聚合度聚氯乙烯（HPVC）的热稳定性和热分解过程以及光老化对HPVC性能的影响。

The heat stability , thermal decomposition behavior and the effect of light aging on performance of HPVC were studied .

1HNMR（300MHz）和FT-IR表征了产物结构，是平均聚合度为5的齐聚物。

The average polymerization degree of the oligomer is 5 determined by 1H NMR .

增加PVC的聚合度，TPE的耐热老化性能提高；

The heat aging properties of TPE were improved when degree of polymerization of PVC was increased .

但聚合度的大小直接影响APP的水溶性、热稳定性及与基材的相容性。

Many properties of APP depend on the degree of polymerization , suchas solubility in water , thermal stability and compatibility with materials .

随平均聚合度提高，EG单耗降低，PTA单耗提高。

Unit consumption of PTA is decreased and that of EG is increased with the increasing of average polymerization degree .

结果表明分散剂（PEG）的聚合度对纳米氧化铝的粒度分布有着重要的影响。

The results show that the polymerization degree of dispersing agent was an important factor to the particle distribution of the nano powder .

RCP的平均聚合度是15。

A structural model was postulated for a degree of polymerization ( DP ) of 15 .

研究了纺丝原料聚合度、转化率对聚乙烯醇（PVA）纤维高强高模化的影响。

The effects of the polymerization degree and conversion rate of the feedstocks on the high-strength high-modulus poly - vinyl alcohol fiber were studied .

阻燃样品的特性粘度和平均聚合度比纯PET有所降低且随着阻燃剂含量的增加，特性粘度呈下降趋势。

The intrinsic viscosities and the average degrees of polymerization of flame retarded PET are lower than the untreated sample and reduce the values with the increase of FR contents .