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Updated: Jul 15, 2025

Determination of Glucan Chain Length Distribution of Glycogen Using the Fluorophore-Assisted Carbohydrate Electrophoresis FACE Method
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Determination of Glucan Chain Length Distribution of Glycogen Using the Fluorophore-Assisted Carbohydrate Electrophoresis FACE Method

Published on: March 31, 2022

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超分支的多糖碳酸衍生物的溶液表征和由于链分支而导致的特定相分离行为

Madoka Mizuguchi1, Keisuke Umeda1, Hisato Mizumoto1

  • 1Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan. terao.ken.sci@osaka-u.ac.jp.

Soft matter
|October 4, 2023
PubMed
概括

高分支的循环 dextrin tris(phenylcarbamate) (HTPC) 呈现出一个紧的结构. 与线性聚合物不同,HTPC在甲基酸盐中表现出独特的溶解性,这表明由于其分支螺旋链而改变了聚合物溶剂相互作用.

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Polymer Classification: Architecture

Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
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The skeletal structure of polymers synthesized via radical polymerization is always branched. For example, the polymerization of ethylene by radical polymerization results in a low-density grade of polyethylene with a heavily branched skeletal structure. Here, the radical site abstracts hydrogen from the growing chain, and the radical site shifts from the end (a primary carbon center) to anywhere within the growing chain (a secondary carbon center). Consequently, the part of the chain from the...
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Mass Spectrometry: Branched Alkane Fragmentation

This lesson delves into the mass spectrometry of branched alkane fragmentation. Branched alkanes possess secondary or tertiary carbon atoms, which generate relatively stable carbocations if the cleavage occurs at the branching point. The high stability of carbocations drives the instant fragmentation of branched alkanes. Accordingly, the branched alkane's molecular ion peak is very weak or invisible in the mass spectra, especially in comparison to a linear alkane.
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Chemistry of Carbohydrates03:25

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Molecular Weight of Step-Growth Polymers

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