0380707 - ÚMCH 2013 RIV NL eng J - Journal Article
Netopilík, Miloš
Size-exclusion-chromatography separation of randomly branched polymers with tetrafunctional branch points and local dispersity.
Journal of Chromatography A. Roč. 1260, 19 October (2012), s. 97-101. ISSN 0021-9673. E-ISSN 1873-3778
R&D Projects: GA ČR GCP205/11/J043
Institutional research plan: CEZ:AV0Z40500505
Institutional support: RVO:61389013
Keywords : size exclusion chromatography * local dispersity * random branching
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 4.612, year: 2012 ; AIS: 0.919, rok: 2012
DOI: https://doi.org/10.1016/j.chroma.2012.08.055

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.
Permanent Link: http://hdl.handle.net/11104/0211347