Structural Defects in Polyallylcarbosilane Dendrimers and Their PolyolDerivatives Characterized by NMR and MALDI-TOF Mass Spectrometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F10%3A00343150" target="_blank" >RIV/61389013:_____/10:00343150 - isvavai.cz</a>
Alternative codes found
RIV/67985858:_____/10:00343150
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Structural Defects in Polyallylcarbosilane Dendrimers and Their PolyolDerivatives Characterized by NMR and MALDI-TOF Mass Spectrometry
Original language description
A series of polyallylcarbosilane dendrimers and carbosilane-based dendritic polyols up to third generation was analyzed by means of MALDI-TOF MS and multinuclear NMR to determine the character, origin, and number of structural defects. Several side reactions accompanying hydrosilylation, from which isomerization of terminal double bonds was the most abundant, were detected during the synthesis of carbosilane skeleton. Despite increased steric hindrance, internal double bonds react in subsequent additionreactions. Depending on the synthetic sequence applied, the retained reactivity of the internal double bonds can lead either to suppression of the defect in the next generation or to creation of more significant defects such as dendrimer dimers. Hydroboration of allyl groups using dicyclohexylborane proceeded with near quantitative conversion; a small amount of hydrolysis accompanying the following oxidation step producing nonreactive alkyl groups at the periphery was detected.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CC - Organic chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LC06070" target="_blank" >LC06070: The structure and synthetic applications of transition metal complexes</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Macromolecules
ISSN
0024-9297
e-ISSN
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Volume of the periodical
43
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
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UT code for WoS article
000277649500014
EID of the result in the Scopus database
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