NANOCOMPOSITES BASED ON STYRENE-ISOPRENE-STYRENE BLOCK COPOLYMERS AND COVALENTLY MODIFIED CARBON NANOTUBES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F12%3A43866992" target="_blank" >RIV/70883521:28110/12:43866992 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/12:43866992

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

NANOCOMPOSITES BASED ON STYRENE-ISOPRENE-STYRENE BLOCK COPOLYMERS AND COVALENTLY MODIFIED CARBON NANOTUBES

Popis výsledku v původním jazyce

Multiwall carbon nanotubes (MWCNT) were covalently modified in order to achieve better dispersion in a block copolymer matrix. Surface of MWCNT was modified either a) by polymerization of styrene from MWCNT surface (MWCNT-PS), or b) by covalent bonding of cholesteryl groups (MWCNT-chol). In both cases, MWCNT surface was first modified by 4-(2-hydroxyethyl)nitrobenzene to introduce hydroxyl groups onto MWCNT surface (MWCNT-OH). MWCNT-PS were prepared by reaction of MWCNT-OH with 2-bromopropionyl bromideand subsequent atom transfer radical polymerization of styrene from the surface of MWCNT by ATRP using CuBr/PMDETA as a catalytic system. MWCNT-chol were prepared by esterification of MWCNT-OH by reaction with cholesteryl chloroformate. The modified MWCNT were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermal gravimetric analyses (TGA), and Fourier transmission infrared spectroscopy (FTIR). The composite films were prepared by casting of

Název v anglickém jazyce

NANOCOMPOSITES BASED ON STYRENE-ISOPRENE-STYRENE BLOCK COPOLYMERS AND COVALENTLY MODIFIED CARBON NANOTUBES

Popis výsledku anglicky

Multiwall carbon nanotubes (MWCNT) were covalently modified in order to achieve better dispersion in a block copolymer matrix. Surface of MWCNT was modified either a) by polymerization of styrene from MWCNT surface (MWCNT-PS), or b) by covalent bonding of cholesteryl groups (MWCNT-chol). In both cases, MWCNT surface was first modified by 4-(2-hydroxyethyl)nitrobenzene to introduce hydroxyl groups onto MWCNT surface (MWCNT-OH). MWCNT-PS were prepared by reaction of MWCNT-OH with 2-bromopropionyl bromideand subsequent atom transfer radical polymerization of styrene from the surface of MWCNT by ATRP using CuBr/PMDETA as a catalytic system. MWCNT-chol were prepared by esterification of MWCNT-OH by reaction with cholesteryl chloroformate. The modified MWCNT were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermal gravimetric analyses (TGA), and Fourier transmission infrared spectroscopy (FTIR). The composite films were prepared by casting of

Druh

O - Ostatní výsledky

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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