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Deeper insight into structures of modified AEROSIL particles synthesized via conventional heating and microwave heating

The contribution deals with the comparison of microwave heating and conventional oil bath heating. Silicon dioxide nanoparticles were grafted with MPTMS under acid conditions. Those particles contain a polysiloxane shell with physically adsorbed and chemically bound fractions which can be separated... Full description

Contained in: Macromolecular Materials and Engineering Vol. 293, No. 2 (2008), p. 132-139
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Links: Additional Link (dx.doi.org)
ISSN: 1439-2054
Additional Keywords: MIKROGEFUEGE
MIKROWELLENBESTRAHLUNG
NANOPARTIKEL
OELBAD
SILICIUMDIOXID
SILICON:POLYMER
THERMOGRAVIMETRISCHE-ANALYSE
DOI: 10.1002/mame.200700297
Notes: Copyright: Metadaten: TEMA, Copyright WTI-Frankfurt eG
Copyright: (C) Alle Rechte beim Herausgeber
Physical Description: 8 Seiten, 8 Bilder, 2 Tabellen, 28 Quellen
ID (e.g. DOI, URN): 10.1002/mame.200700297
PPN (Catalogue-ID): WTI046114602
Note: WTI TEMA DB
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520 |a The contribution deals with the comparison of microwave heating and conventional oil bath heating. Silicon dioxide nanoparticles were grafted with MPTMS under acid conditions. Those particles contain a polysiloxane shell with physically adsorbed and chemically bound fractions which can be separated by Soxhlet extraction. The resulting fractions were analyzed with TGA and MALDI-TOF MS; one to determine the amount of physically adsorbed and chemically bound fractions and the other to get deeper insight into the polysiloxane structures. Furthermore, it was our aim to clarify which fraction can be visualized using MALDI-TOF MS. Our results show that the ratio of chemically bound MPTMS is higher when using microwave heating, but the same structures in the physically adsorbed fraction were built in both cases. [Copyright Wiley-VCH Verlag GmbH & Co. KGaA. Reproduced with permission.] 
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653 4 |a SILICIUMDIOXID 
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