Buscar
Mostrando ítems 1-10 de 13
Molar mass distributions of linear homopolymers by size exclusion chromatography with light scattering detection: A method for automatic band broadening correction
(Elsevier Science, 2019-06)
Size exclusion chromatography (SEC) equipped with a differential refractometer (DR) and a light scattering (LS) detector is a well-known technique for determining the molar mass distribution (MMD) of many polymers. In the ...
SEC of Simple Polymers with Molar Mass Detection in the Presence of Instrumental Broadening. Computer Simulation Study on the Recuperation of Unbiased Molecular Weight Distributions
(Taylor, 2001-12)
This theoretical work presents a correction procedure for calculating an unbiased MWD when analyzing a linear homopolymer by size exclusion chromatography with molar mass detection. The fractionation and the measurements ...
Band Broadening in Size Exclusion Chromatography of Polymers. State of the Art and Some Novel Solutions. 25th Anniversary Issue
(Taylor, 2002-12)
This work reviews the main problems of band broadening (BB) in SEC, and also presents some novel and state-of-the-art solutions. The first part of the work describes Tung´s equation and presents an overview on the expected ...
Band Broadening Function in Size Exclusion Chromatography of Polymers: Review of Some Recent Developments
(Wiley, 2007-11)
This article reviews some recent developments on the determination of the Band Broadening Function (BBF) in Size Exclusion Chromatography (SEC) of polymers. It was carried out in the frame of the IUPAC Project: "Data ...
Molar mass distribution in binary homopolymer blends by single-step two-dimensional liquid chromatography: Operation and data treatment
(Elsevier, 2016-07)
A single-step two-dimensional liquid chromatography technique is employed for estimating the individual molar mass distributions in blends of polystyrene and poly(methyl methacrylate). It involves an initial separation of ...
Processamento de dados sísmicos marinhos de alta resolução usando sistema sparker monocanal: (plataforma da Bahia, Brasil)
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM GEODINÂMICA E GEOFÍSICA, 2021-04-20)
Single-channel seismic data are still a challenge to apply fundamental processing
techniques such as deconvolution and migration. This study proposes a workflow
processing for high-resolution seismic-reflection data regarding ...
Using inelastic scattering of light to understand the nature of electron-phonon interactions and phonon self-energy renormalizations in graphene materials
(Universidade Federal de Minas GeraisUFMG, 2012-09-13)
In the last decade, many theoretical and experimental achievements have been made in the physics of graphene. In particular, Raman spectroscopy has been playing an important role in unraveling the properties of graphene ...
EXTENDED HUBBARD-MODEL - A CLUSTER EFFECTIVE-MEDIUM APPROACH
(American Physical SocCollege PkEUA, 1993)