The average degree of polymerization increases with the increase of the amount of methanol and solicitation, and it increases at the beginning but some time later decreases with time. 结果表明,PVA聚合度随甲醇和引发剂用量配比的增加而升高,随聚合时间却表现出先升后降的现象。
Study on the Determination of the Average Degree of Polymerization of Procyanidins by Spectrophotography 分光光度法测定原花青素平均聚合度的研究
Determination of the Average Degree of Polymerization and its Distribution of Oligomers by Inverse HPLC and High Performance Gel Permeation Chromatography HPGPC和HPLC测定齐聚物的聚合度分布与平均聚合度
The following determinations were made on the initial and aged samples: MIT folding endurance, internal tearing resistance, bursting strength, breaking length, brightness, copper number and average degree of polymerization. 纸张老化前后测试的性能为MIT耐折度、撕裂度、耐破度、裂断长、白度、铜价和聚合度。
A kinetic study of alternating copolymerization of butadiene and propylene based on vanadium-aluminium catalyst(ⅱ)& determination of kinetic parameters and equation for average degree of polymerization 钒-铝体系催化丁二烯丙烯交替共聚合的动力学研究(Ⅱ)&动力学参数的测定和平均聚合度方程
Measurements of folding endurance, internal tearing resistance, brightness, and copper number or average degree of polymerization were strongly recommended for papers before and after accelerating aging. 建议测量纸张老化前后的耐折度、撕裂度、白度和铜价或聚合度。
The rate of reaction ( R_p) and average degree of polymerization((?) 聚合速度(Rp)和平均聚合度((?)
The calculation equations for number average degree of polymerization and number average molecular weights of tricomponent copolyester 三组分共聚酯数均聚合度和数均分子量的计算方程
According to some usual molecular weight distributions, the material functions, such as non-newtonian viscosity and first normal stress coefficient, for the steady-state shear flow and, therefore, the relationship between the intrinsic viscosity and the weight average degree of polymerization are derived. 对几种最常见的分子量分布,在稳态剪切流中,分别计算了它们的物质函数以及特性粘数与重均聚合度的关系。
Study on the Average Degree of Polymerization of Continence Pulp 自制浆平均聚合度的分析方法研究及应用
Study of Number-average Degree of Polymerization of Radical Polymerization 自由基聚合中平均聚合度的学习
A New Method for Determination of the Average Degree of Polymerization ( DP) of Proanthocyanidins 测定原花青素平均聚合度的一种新方法
A Method of Teaching the Calculation of the Number Average Degree of Polymerization 数均聚合度计算的教学方法
The measurement on average degree of polymerization in insulation paper with viscometry is introduced, and some testing results are analysed. 对用粘度法测定绝缘纸的平均聚合度做了简要介绍,并对试验结果进行了分析。
There are three significant scientific concepts, kinetic chain length and number average degree of polymerization and radical life, in the chapter of the radical chain polymerization. 其中动力学链长、平均聚合度、自由基寿命是三个重要的学术概念。
Results show that carbohydrate dissolution is less drastic for alkaline sulfite cooking ( less than KP and HS, close to NS), pulp yield and average degree of polymerization of pulp were also higher. 结果表明,碱性硫酸钠法蒸煮碳水化合物的溶出比较少(低于KP法和HS法,与NS法相近),纸浆得率和纸浆的平均聚合度也较高。
The initial number average degree of polymerization ( DP)_0, derived from the value of D_0 and p_0 is approaching to the value of ( DP)_0determined by viscometric method. 由p0和D0反推聚乙烯醇的起始数均聚合度(DP)0。
Influence of initial functional group concentration on average degree of polymerization in equilibrium condensation polymerization 平衡缩聚反应中起始官能团浓度对平均聚合度Xn的影响
Under this conditions, the energy consumption was only 23.1% of conventional heating methods, the product yield was 87%, average degree of polymerization 183, crystallinity 88.8%. 此时,水解能耗仅为常规加热方法的23.1%,产品得率为87%,平均聚合度183,结晶度88.8%。