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CHANGES IN THE MOLECULAR WEIGHT DISTRIBUTION OF
"... Changes in the molecular weight distribution of DNA sheared in a virtis homogenizer ..."
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Changes in the molecular weight distribution of DNA sheared in a virtis homogenizer
Estimation and control of the molecular weight distribution in
"... free radical polymerizations ..."
Transfer on Polymerization Behavior and Molecular Weight Distribution
"... ABSTRACT: A detailed mathematical model for styrene free radical polymerization system based on the multigrain model (MGM) and polymeric multigrain model (PMGM) has been developed to predict radial monomer concentration within the growing macro particle and particle growth factor, effective paramete ..."
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parameters on broadening of the molecular weight distribution (MWD), number and weight average of the molecular weight and poly dispersity index (PDI). In this model the more important parameter including time of polymerization, initial size of the initiator particles and diffusion resistance are illustrated
Effect of molecular weight distribution on e-beam exposure properties of polystyrene
- Nanotechnol
, 2013
"... Effect of molecular weight distribution on e-beam exposure properties of polystyrene This article has been downloaded from IOPscience. Please scroll down to see the full text article. ..."
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Cited by 1 (0 self)
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Effect of molecular weight distribution on e-beam exposure properties of polystyrene This article has been downloaded from IOPscience. Please scroll down to see the full text article.
Molecular Weight Distribution of Thermoplastic Polyurethane by Gel Permeation Chromatography
"... ABSTRACT: Five grades of thermoplastic polyurethane, varying in hard/soft segment ratio, were fractionated using gel permeation chromatography. Dimethylformamide was used as the medium. The molecular weight distribu-tion of these grades was related to their hardness. ..."
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ABSTRACT: Five grades of thermoplastic polyurethane, varying in hard/soft segment ratio, were fractionated using gel permeation chromatography. Dimethylformamide was used as the medium. The molecular weight distribu-tion of these grades was related to their hardness.
Dynamic Light-Scattering Characterization of the Molecular Weight Distribution of Unfractionated Polyimide
, 2001
"... ABSTRACT: Using a developed laser light-scattering (LLS) procedure, we accomplished the characterization of an unfractionated polyimide (UPI) in CHCl 3 at 25°C. The Laplace inversion of precisely measured intensity-intensity time correlation function from dynamic LLS leads us first to an estimate o ..."
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of the characteristic line-width distribution G(⌫), and then to the translational diffusion coefficient distribution G(D). By using a previously established calibration of D (cm 2 /s) ϭ 3.53 ϫ 10 Ϫ4 M Ϫ0.579 , we were able to convert G(D) into a molecular weight distribution. The weight-average molecular weight M w
Estimation of Molecular Weight Distribution of Polystyrene Standard Samples by Diffusion Method
"... Molecular weight distributions of polystyrene samples delivered from Dr. H. Mark were estimated by a diffusion method proposed by the present authors. Dependence of diffusion coefficient on concentration in multicomponent solution, dependence of diffusion constant on the molecular weight and relatio ..."
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Molecular weight distributions of polystyrene samples delivered from Dr. H. Mark were estimated by a diffusion method proposed by the present authors. Dependence of diffusion coefficient on concentration in multicomponent solution, dependence of diffusion constant on the molecular weight
An Analytical Relation Between Relaxation Time Spectrum and Molecular Weight Distribution
, 1999
"... this article it is shown that the relaxation time spectrum can be analytically related to the molecular weight distribution regarding a recently derived generalized mixing rule. This analytical relation greatly reduces the computational effort to determine the molecular weight distribution from the ..."
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Cited by 6 (2 self)
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this article it is shown that the relaxation time spectrum can be analytically related to the molecular weight distribution regarding a recently derived generalized mixing rule. This analytical relation greatly reduces the computational effort to determine the molecular weight distribution from
/Molecular Weight Distribution of a Segmented Copolymer of PET-PCl
"... A recently developed method of combining both the results of static and dynamic laser light scattering (LLS) was applied to characterize the segmented copolymer of poly(ethylene terephthalate-co-caprolactone) (PET-:'PCL) with 48%. PET content. Unlike the traditiona! three-solvent method propose ..."
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proposed by Bushuk and Benoit for copolymers, this method requires only two solvents. For each solvent, the apparent weight average molecular weight (M..,app) was measured by static LLS.c Then M...app was used as a constraint to convert the line-width distribution from dynamic LLS into the apparent
ETHER SURFACTANTS are dependent on MOLECULAR WEIGHT DISTRIBUTION.
"... Synopsis--Many of the characteristics which are important in formulating with POLY- ..."
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Synopsis--Many of the characteristics which are important in formulating with POLY-
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