Advertisement

Topics

Size-exclusion-chromatography separation of randomly branched polymers with tetrafunctional branch points and local dispersity.

Summary of "Size-exclusion-chromatography separation of randomly branched polymers with tetrafunctional branch points and local dispersity."

The SEC separation of a randomly branched polymer, in particular local dispersity due to branching, are theoretically examined. A model of the SEC separation of randomly branched polymer with tetrafunctional branch points enabling the estimation of local dispersity was developed. Measurable quantities (branching indices) were compared with real data. Local dispersity due to branching is demonstrated to depend on elution volume and degree of branching and in the area of the beginning of the elution curve it can reach non-negligible values.

Affiliation

Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic. Electronic address: netopil@imc.cas.cz.

Journal Details

This article was published in the following journal.

Name: Journal of chromatography. A
ISSN: 1873-3778
Pages: 97-101

Links

DeepDyve research library

PubMed Articles [11858 Associated PubMed Articles listed on BioPortfolio]

Theory of chromatography of partially cyclic polymers: Tadpole-type and manacle-type macromolecules.

A theory of chromatography is developed for partially cyclic polymers of tadpole- and manacle-shaped topological structures. We present exact equations for the distribution coefficient K at different ...

Chain-length-dependent impact of band broadening on the molar-mass determination of synthetic polymers via size-exclusion chromatography.

The impact of band-broadening (BB) on the molar-mass determination of synthetic polymers via size-exclusion chromatography (SEC) is systematically studied. BB is simulated using the exponentially modi...

Lignin profiling in extracted xylans by size-exclusion chromatography.

Utilization of the polymeric parts of lignocellulose is expected to gain increasing importance in future biorefinery scenarios. In that respect, a particular focus is placed on hemicelluloses from dif...

Estimation of critical conditions of polymers based on monitoring the polymer recovery.

Liquid chromatography at critical conditions (LCCC) is a very attractive chromatographic technique on the border between the size exclusion and liquid adsorption mode of the liquid chromatography. The...

A new non-degradative method to purify glycogen.

Liver glycogen, a complex branched glucose polymer containing a small amount of protein, is important for maintaining glucose homeostasis (blood-sugar control) in humans. It has recently been found th...

Clinical Trials [2385 Associated Clinical Trials listed on BioPortfolio]

Human Detection of Glucose Polymers

Although salivary contents play a major role in the early stage of food digestion process, their role in taste perception of glucose polymers is essentially unknown. It is hypothesized tha...

Effects of Branched-Chain Amino Acids on Muscle Ammonia Metabolism in Patients With Cirrhosis and Healthy Subjects

The purpose of this study is to determine whether Branched chain Amino Acids enhances the uptake of ammonia in muscle tissue.

Effect of Branched Chain Amino Acids on Muscle

With aging, there is a decrease in muscle mass and function especially in the energy storehouses of cells called mitochondria. Amino acids, the building blocks of protein, and insulin hav...

AtriCure Exclusion of the LAA in Patients Undergoing Concomitant Cardiac Surgery

Prospective, non-randomized trial to evaluate the safety and efficacy of the LAA Exclusion Device (Clip) for the exclusion of the LAA via epicardial tissue approximation.

Branched-chain Amino Acid (BCAA) on Progression of Advanced Liver Disease

Protein-calorie malnutrition is frequently observed in patients with advanced liver cirrhosis. There have been continued interests in potential benefits of long-term oral branched-chain am...

Medical and Biotech [MESH] Definitions

A method of gel filtration chromatography using agarose, the non-ionic component of agar, for the separation of compounds with molecular weights up to several million.

A hybrid separation technique combining both chromatographic and electrophoretic separation principles. While the method was invented to separate neutral species, it can also be applied to charged molecules such as small peptides.

A separation technique which combines LIQUID CHROMATOGRAPHY and CAPILLARY ELECTROPHORESIS.

A method of separation of two or more substances by repeated distribution between two immiscible liquid phases that move past each other in opposite directions. It is a form of liquid-liquid chromatography. (Stedman, 25th ed)

Use of various chemical separation and extraction methods, such as SOLID PHASE EXTRACTION; CHROMATOGRAPHY; and SUPERCRITICAL FLUID EXTRACTION; to prepare samples for analytical measurement of components.

Quick Search
Advertisement
 


DeepDyve research library

Searches Linking to this Article