1) viscosity-average molecular weight
黏均分子量
1.
The factors affecting the preparation of chitosan microspheres,such as viscosity-average molecular weight and concentration of chitosan,ratio of ethyl acetate and NaOH,agglomerating time,were studied and the method of preparing porous chitosan microspheres was optimized using the surface,inner configurations and shape of chitosan microsphere obtained by scanning electron microscope as index.
以不同黏均分子量的壳聚糖为材料,用扫描电子显微镜观察壳聚糖微球表面、内部结构及形态,并以其为主要参考指标,研究了壳聚糖黏均分子量、NaOH浓度、乙酸乙酯比例、壳聚糖浓度、凝结时间等对壳聚糖形成多孔微球的影响,优化了制备多孔壳聚糖微球的工艺参数。
2) viscosity-average relative molecular mass
黏均相对分子质量
1.
The effects of solid content of latex,reaction temperature,the amount of phenylhydrazine and pepegal O on the viscosity-average relative molecular mass(η) of LNR were investigated,and the optimization of these influence factors was conducted by orthogonal test.
以天然橡胶浓缩胶乳为原料,在热氧条件下采用苯肼为催化剂通过化学降解法制备液体天然橡胶(LNR),考察了胶乳的总固物质量分数、反应温度、稳定剂平平加O和苯肼用量对LNR黏均相对分子质量(M-η)的影响,并通过正交实验进行优化。
3) viscosity-average molecular weight
粘均分子量
1.
The viscosity-average molecular weight of PASP,scale inhibitio.
用极限黏度法测定合成聚天冬氨酸的粘均分子量,用静态阻垢法评价聚天冬氨酸的性能,用摇床法检验聚天冬氨酸的生物降解性。
2.
The effect ofγ-irradiation dose(range from 0 to 25kGy) on the viscosity-average molecular weight((?)),mechanical properties,thermal performance,and the chemical structure of poly (L-lactic acid)(PLLA) under air atmosphere was investigated.
考察了辐射剂量(D)在0～25kGy范围和空气气氛下,γ-辐照对L型聚乳酸(PLLA)的粘均分子量((?)_η)、力学性能、热稳定性和化学结构的影响。
3.
Use viscometry to determine viscosity-average molecular weight of oxidated polyethylene wax and introduce the measurement,process and effect factors in detail.
用粘度法测定氧化聚乙烯蜡的粘均分子量。
4) Average molecular weight
平均分子量
1.
The change of viscosity and average molecular weight of heavy oil from Liaohe oilfield with temperature and reaction time are investigated in the paper.
探讨了在注蒸气条件下,稠油的粘度和平均分子量随蒸气温度、反应时间的变化规律,研究了金属盐、油层矿物对稠油水热裂解反应的影响。
2.
The refractive index, density, average molecular weight, elemental composition and 1H-NMR spectra of five coker gatches were determined.
测定了大庆、胜利、辽河、管输等5种焦化蜡油的密度、平均分子量、折光指数、元素和1H－NMR核磁共振波谱等数据，研究了5种焦化蜡油的化学组成，包括饱和烃、轻芳烃、中芳烃、重芳烃和胶质5个组分的含量，并与直馏蜡油的数据进行了对比；采用改进的B－L法、n－d－M法和密度法计算了平均结构参数。
3.
GPC analysis revealed that the average molecular weight and molecular radius of β-glucan were 9.
30%,由此可用高效凝胶色谱测定其分子量,得到其平均分子量为9。
5) molecular weight
重均分子量
1.
In this paper,the influence of molecular weight(Mw) of modified PASP(Asp-Glu copolymer,PAG) on its scale inhibition is studied,and the optimum molecular weight are determined;moreover,the scale inhibition performance of combinated copolymer with different Mw is also tested.
考察了聚天冬氨酸(PASP)的改性产物——天冬氨酸-谷氨酸(Asp-Glu)共聚物的分子量对阻垢性能的影响,确定了共聚物的最佳重均分子量;并考察了两种不同分子量共聚物复配使用的阻垢效果。
2.
Although GPC online viscometer, as a kind of GPC equipped with a concentration detector and a viscometer, has been used widely as its brief manner, its results of molecular number, molecular weight and dispersibility retain a lot of errors with the problems of the data applied method and the precision of instrument.
黏度在线凝胶色谱是一种同时配备浓度和黏度检测器的凝胶色谱,由于其测定过程简单直接,被越来越多地广泛采用,但因为数据处理方式和仪器精度的问题,其数均分子量、重均分子量与分散度结果存在较大误差。
3.
The weight average molecular weight, the diffusion coefficient, both the hydrodynamic and gyration radii, and the shape of the flocculation particles can be determined by laser light scattering.
综述了利用该技术可实现对絮凝剂胶体分子粒径、形态结构、粒径分布和重均分子量的精确测量 ,论述了激光散射技术在絮凝剂沉降性能的研究及絮凝剂改进提高方面的重要作
6) number-average molecular weight
数均分子量
1.
The intrinsic viscosity was measured by Ubbelohde Viscometer and the number-average molecular weight was determined by Vapor Permeation Osmeter (VPO).
通过测定含侧氨基聚二甲基硅氧烷聚合物的数均分子量和特性粘数,对MHS方程中的常数K和α进行了订正,得到的MHS方程表述为:[η]=3。
2.
In this paper,the conditions and effecting factors in determination of the number-average molecular weight for EO-THF copolyethers were studied and discussed.
本文对气相渗透法（ＶａｐｏｒＰｒｅｓｓｕｒｅＯｓｍｏｍｅｔｒｙ，简称ＶＰＯ）测定环氧乙烷（ＥＯ）－四氢呋喃（ＴＨＦ）共聚醚的数均分子量的测试条件和影响因素进行了研究和讨论。
补充资料：黏均分子量
分子式：
CAS号：
性质：由黏度法测定的聚合物分子量，用表示。，式中α为一常数。
CAS号：
性质：由黏度法测定的聚合物分子量，用表示。，式中α为一常数。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条