athe number average molecular weight (Mn) was determined by gel permeation chromatography (GPC) using commercially available PECH and polystyrene standards as reference in THF. 数字平均分子量(Mn)在THF取决于胶凝体渗透过程色谱法(GPC)使用买得到的PECH和多苯乙烯标准作为参考。[translate]...
分析总结。 免费查看同类题视频解析查看解答更多答案结果一 题目 英语翻译the weight average molecular weightthe number average molecular weight 答案 重量除以分子量数量除以分子量是求质量分数的吧相关推荐 1英语翻译the weight average molecular weightthe number average molecular weight 反馈 收藏 ...
Ivan HarrisJohn Wiley & Sons, Ltd.Journal of Polymer ScienceI. Harris, The number-average molecular weight of polythene, J. Polym. Sci., 8 (1952) 353.Harris, I. ( 1952 ) The number-average molecular weight of polyethylene . Journal of Polymer Science 4 , 353 – 364 ....
On the Use of Hydroxyl Radical Kinetics to Assess the Number-Average Molecular Weight of Dissolved Organic Matter 来自 Semantic Scholar 喜欢 0 阅读量: 45 作者:E Appiani,SE Page,K Mcneill 摘要: Dissolved organic matter (DOM) is involved in numerous environmental processes, and its molecular size...
a–c Molecular structures of Nafion ionomer (a), HOPI with PFMMD matrix reported in ref. 41 (b), and HOPI synthesized in this work (c). Density (ρ), number-average molecular weight (Mn), EW (ionomer mass per sulfonate group), and proton conductivity (σH) are also shown. The dens...
low-molecular-weight PDMS is suitable because self-healing of the dynamic network is accomplished via chain diffusion of constituent polymers. The number average molecular weight and the molecular weight distribution of the PDMS are 7300 and 1.56, respectively. However, a decrease in the molecular we...
molec′ular weight′ n. the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule.Abbr.:mol. wt. ...
According to our calculations, the spinodal depends on both weight-average ((M) over bar (w)) and number-average ((M) over bar (n)) molecular weights, whereas that of the z-average molecular weight is invisible. Moreover, the extreme of the spinodal decreases when the polydispersity index...
Calculate the sum of the product of the number of molecules (Ni) and the mass of each molecule (Mi) for all data points. Step 1 Calculate the molecular weight (number average). MW―n=f1+f2+f3+f4f1M1+f2M2+f3M3+f4M4=0.20+0.30+0.30+0.200.20...
aAverage molecular weight was measured by g.p.c. using a column packed with trimethylsilylated silica gel with NMP as an elution solvent and polystyrenes and fractionated novolak phenol resin as standards for calibration of the column. 平均分子量由g.p.c.测量。 使用专栏包装与trimethylsilylated矽...