Photochemical synthesis of ultrafine organosilicon particles from trimethyl(2-propynyloxy)silane and carbon disulfide

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F06%3A00035887" target="_blank" >RIV/61388955:_____/06:00035887 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Photochemical synthesis of ultrafine organosilicon particles from trimethyl(2-propynyloxy)silane and carbon disulfide

Original language description

Under light irradiation at 313 nm with a medium-pressure mercury lamp, a gaseous mixture of trimethyl(2-propynyloxy)silane (TMPSi) and carbon disulfide (CS2) produced sedimentary aerosol particles. From measurement of monitor (He-Ne laser) light intensity scattered by the aerosol particles, it was shown that the nucleation process of the aerosol particles was accelerated with increasing partial pressure of TMPSi. Analysis of FT-IR and X-ray photoelectron spectra (XPS) of the sedimentary aerosol particles revealed that excited CS, molecules reacted with TMPSi at C equivalent to C to initiate nucleation reaction of the particle formation. Several chemical species originated from CS2 were incorporated into the polymerization reactions between TMPSi and CS2 in forming > C=S and C-S chemical bonds.

Czech name

Fotochemická syntéza ultračistých organosilikonových částic z trimethyl(2-propynyloxy)silanu a CO2

Czech description

Působením UV záření o vlnové délce 313 nm na plynnou směs trimethyl(2-propynyloxy)silanu (TMPSi) a sirouhlíku vznikají aerosolové částice. Z měření rozptylu záření He-Ne laseru vyplynulo, že nukleační process je urychlen růstem parciálního tlaku TMPSi. Analýza částic aerosolu metodami FTIR a XPS, že excitované molekuly sirouhlíku reagují s C=C vazbou TMPSi a iniciují nukleaci částic.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Photochemistry and Photobiology. A - Chemistry Section

ISSN

1010-6030

e-ISSN

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Volume of the periodical

179

Issue of the periodical within the volume

1-2

Country of publishing house

CH - SWITZERLAND

Number of pages

7

Pages from-to

142-148

UT code for WoS article

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EID of the result in the Scopus database

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