0000000000323429

AUTHOR

Sergei S. Sheiko

showing 2 related works from this author

Molecular Boxes Based on Hollow Organosilicon Micronetworks

1999

chemistry.chemical_compoundMaterials sciencePolymer sciencechemistryMechanics of MaterialsMechanical EngineeringOrganic chemistryGeneral Materials ScienceOrganosiliconAdvanced Materials
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Main Chain Conformation and Anomalous Elution Behavior of Cylindrical Brushes As Revealed by GPC/MALLS, Light Scattering, and SFM

1999

High molar mass polymacromonomers based on methacryloyl end-functionalized oligo methacrylates (Mn = 2410 g/mol) adopt the conformation of wormlike cylindrical brushes. Comparison of the absolute molar mass, Mw, determined by static light scattering and the contour length, Lw, of the molecules measured by SFM in the dry state revealed the length per vinylic main chain monomer of the cylindrical structure to be less than 0.1 nm, thus being much shorter than the maximum value of 0.25 nm. In solution this shrinkage could be quantified to 0.071 nm per monomer by Holtzer analysis of the scattering curves which in addition yielded the Kuhn statistical segment length lk = 120 nm. GPC MALLS investi…

Molar massChromatographyPolymers and PlasticsElutionChemistryOrganic ChemistryAnalytical chemistryLight scatteringInorganic ChemistryGel permeation chromatographyAbsolute molar masschemistry.chemical_compoundMonomerMaterials ChemistryRadius of gyrationStatic light scatteringMacromolecules
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