1.Using combined laser scattering-viscometer-GPC determined the Mark-Houwink equation parameters of the Butadiene-Styrene diblock copolymer and the styrene-butadiene-styrene tri-block copolymer.采用光散射-粘度-示差多检测凝胶渗透色谱(GPC)测定了自行合成的丁二烯-苯乙烯两嵌段共聚物以及苯乙烯-丁二烯-苯乙烯三...
Mark-Houwink方程 1. TheMark-Houwink equationconstants were determined by 3 homogeneous PYPS, and validated. 目的:获得均一性的条斑紫菜多糖,测定相应的Mark-Houwink方程参数。 2. The parameters K, α ofMark-Houwink equationfor PS were obtained at 150 ℃ in 1,2,4-trichlorobenzene solvent. ...
Mark-Houwink parameters for aqueous-soluble polymers and biopolymers at various temperatures. J. Pol. Biopol. Phys. Chem. 2014, 2, 37-43. [CrossRef]M.A. Masuelli, Mark-Houwink parameters for aqueous-soluble polymers and biopolymers at various temperatures, J. Polym. Biopolym. Phys. Chem. ...
The intrinsic viscosity measurements used to calculate the Mark-Houwink (M-H) parameters are generally performed for different molecular weights at a constant temperature, with the standard value of this temperature being 25掳C, or else 37掳C in the case of mammalian proteins, or else under thet...
Determination of Mark-Houwink parameters for poly(N-vinylformamide) High-velocity sedimentation, translational isothermal diffusion, and viscometry in H2O and DMF are used to investigate the samples and fractions of poly(N-methyl-N-vinylacetamide) synthesized by free-radical polymerization and fraction...
mark-houwink随打随译 世界领先的质量 拖放文件 立刻翻译 ▾外部资源(未审查的) These parameters are used to construct a Mark – Houwink plot from which a range of structural information can be deduced. malvern.com 此类参数可用于构建Mark-Houwink曲线 ,由此可推断出一系列结构信息。 malvern.com....
摘要K值是Mark-houwink经验公式([ ! ]=KM " )中的两个常数之一.理解它的意义不仅有利于公式的应 用,而且有可能有利于从不同的角度认识高分子材料的性质.考虑到K是由高分子材料和使用的溶剂性质所 决定的,因此引入溶剂的一些参数对Mark-houwink经验公式中的K的意义进行了初步探讨.结果显示,高聚 物的K和溶剂的...
Mark-Houwink_equation Knowing the Mark–Houwink parameters and the molecular weight of one of the polymers allows one to find the molecular weight of the other polymer using a G... MH Equation - 《Polymer Chemistry》 被引量: 0发表: 0年 GPC-粘度计联用装置中特性粘数加宽改正的经验方法 本文...
此式称为Mark—Houwink方程,它是高分子物理中最通用的方程之一"'. Mark—Houwiuk方程仅严格适用于单分散或窄分布的聚合物.'.对于多分散聚合 物,用粘均分子量代替来考虑多分散性. = :(2) 当多分散聚台物的[是单独的i-瘩妾节I棚i的重量平均时,即 ...
Intrinsic viscosity data of a polystyrene sample in various good and poor solvents have been employed to estimate the Mark-Houwink-Sakurada constants by a novel expression. Two simple models are also proposed to deduce the values of the polymer-solvent interaction parameter and the solubility ...