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Title:Growth mechanism and structure of electrochemically synthesized dendritic polymethylsilane molecules
Authors:ID Mavrič, Andraž (Author)
ID Badasyan, Artem (Author)
ID Mali, Gregor (Author)
ID Valant, Matjaž (Author)
Files:.pdf EuroPolyJ2017.pdf (705,04 KB)
MD5: 85340FE9E32B0E77A38153A715676504
 
Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:The study of an electrochemical synthesis of polymethylsilane from trifunctional trichloro- methylsilane monomers identified a single polymerization pathway involving reduction of the monomer to silyl anions and their addition to the growing polymer. The sizes of the synthesized macromolecules, measured with dynamic light scattering, are much larger than the theoretical size estimated for an ideal dendrimer. The reason for this, found by NMR analysis, is in a large number of branching irregularities (defects) contained in the molecular structure, which can be described as a hyperbranched dendritic polymer. Theoretical estimates of sizes for an ideal dendrimer were corrected assuming a branching defect is a cavity with the volume of one monomer. Appropriateness of the theoretical and experimental models was confirmed with a good quantitative agreement between the experimental densities and the theoretically calculated values.
Keywords:Polymethylsilane Dendritic polymer Electropolymerization
Publication version:Version of Record
Year of publishing:2017
Number of pages:162-170
Numbering:90
PID:20.500.12556/RUNG-3024-704f6670-45ec-e601-2384-a06436032f5b New window
COBISS.SI-ID:4723707 New window
DOI:http://dx.doi.org/10.1016/j.eurpolymj.2017.03.018 New window
NUK URN:URN:SI:UNG:REP:EGNKHU45
Publication date in RUNG:20.03.2017
Views:4205
Downloads:14
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Record is a part of a journal

Title:European Polymer Journal
Publisher:Elsevier
Year of publishing:2017
ISSN:0014-3057

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0377
Name:Heterogeni fotokatalitični procesi: pridobivanje vodika, čiščenje vode in zraka

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:20.03.2017

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