FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2315951065> ?p ?o ?g. }

• W2315951065 endingPage "2625" @default.
• W2315951065 startingPage "2618" @default.
• W2315951065 abstract "A new postsynthetic method has been developed for sulfonic acid functionalization of hybrid periodic mesoporous organosilica (PMO) materials containing carbon-carbon double bonds (-C═C-) located in mesoporous wall structures. Hexagonal mesoporous ethenylene-silicas (HME) with different pore sizes were synthesized by using P123, Brij76, and Brij56 surfactants and investigated for postsynthetic functionalization. The present functionalization strategy involves epoxidation of double bonds at -5 °C followed by conversion of the resulting epoxide with bisulfite ions at 65 °C and involves neither the use of well-known mercaptol/H2O2 nor harsh concentrated H2SO4 reagents during the course of -C═C- functionalization. The epoxidation step plays a crucial role in determining the amount of -SO3H groups functionalized onto the silica support which is optimized with respect to different synthesis parameters. The ethenylene-silicas both before and after chemical modification were thoroughly characterized by powder XRD, TEM, N2 adsorption, Raman spectroscopy, 13C and 29Si MAS NMR, and catalytic test reactions. X-ray powder diffraction measurements and sorption data indicated that the mesostructure was intact during the postsynthetic chemical modification. Raman spectra exhibited two strong bands at 1567 and 1290 cm(-1) for ethenylene-silica attributed to -C═C and -C-H stretching vibrations, respectively; whereas after epoxidation and sulfonation, new bands were observed at 1215 and 1035 cm(-1) corresponding to the epoxide and -SO3 stretching vibrations, respectively. 13C CP MAS NMR of surfactant extracted ethenylene-silica exhibits a signal at 146 ppm along with signals at 16.4 and 17.4 ppm. The appearance of new signals at 47.7 and 46.5 ppm is attributed to carbon atom with ≡C-OH and ≡C-SO3H groups, respectively. 29Si MAS NMR spectra exclusively showed T2 and T3 species at -73 and -82 ppm, respectively both before and after chemical modification and negligible amount of Q3 or Q4 species confirms the stability of Si-C bonds during the functionalization. The sulfonic acid-functionalized mesoporous ethenylene-silicas show high catalytic activity in esterification of acetic acid with ethanol under liquid-phase reaction conditions." @default.
• W2315951065 created "2016-06-24" @default.
• W2315951065 creator A5043502752 @default.
• W2315951065 creator A5090498291 @default.
• W2315951065 date "2013-03-27" @default.
• W2315951065 modified "2023-10-12" @default.
• W2315951065 title "Novel and Mild Synthetic Strategy for the Sulfonic Acid Functionalization in Periodic Mesoporous Ethenylene-Silica" @default.
• W2315951065 cites W1488262015 @default.
• W2315951065 cites W1544947788 @default.
• W2315951065 cites W1971062796 @default.
• W2315951065 cites W1973767403 @default.
• W2315951065 cites W1975442471 @default.
• W2315951065 cites W1975493559 @default.
• W2315951065 cites W1977659708 @default.
• W2315951065 cites W1981109623 @default.
• W2315951065 cites W1981699152 @default.
• W2315951065 cites W1982421187 @default.
• W2315951065 cites W1987291852 @default.
• W2315951065 cites W1987388741 @default.
• W2315951065 cites W1988318972 @default.
• W2315951065 cites W1990706955 @default.
• W2315951065 cites W1990871878 @default.
• W2315951065 cites W1990917516 @default.
• W2315951065 cites W1998866519 @default.
• W2315951065 cites W1999934945 @default.
• W2315951065 cites W2000222205 @default.
• W2315951065 cites W2000551433 @default.
• W2315951065 cites W2002132766 @default.
• W2315951065 cites W2004294006 @default.
• W2315951065 cites W2005310582 @default.
• W2315951065 cites W2007847626 @default.
• W2315951065 cites W2010970771 @default.
• W2315951065 cites W2011129393 @default.
• W2315951065 cites W2015174560 @default.
• W2315951065 cites W2021589112 @default.
• W2315951065 cites W2023134598 @default.
• W2315951065 cites W2043281398 @default.
• W2315951065 cites W2048745091 @default.
• W2315951065 cites W2053638179 @default.
• W2315951065 cites W2054105009 @default.
• W2315951065 cites W2065553994 @default.
• W2315951065 cites W2065864560 @default.
• W2315951065 cites W2066283902 @default.
• W2315951065 cites W2071910209 @default.
• W2315951065 cites W2073537616 @default.
• W2315951065 cites W2081965486 @default.
• W2315951065 cites W2082192250 @default.
• W2315951065 cites W2082909904 @default.
• W2315951065 cites W2101684039 @default.
• W2315951065 cites W2109744447 @default.
• W2315951065 cites W2111249375 @default.
• W2315951065 cites W2115481498 @default.
• W2315951065 cites W2120306471 @default.
• W2315951065 cites W2123043164 @default.
• W2315951065 cites W2123927172 @default.
• W2315951065 cites W2132581095 @default.
• W2315951065 cites W2135016620 @default.
• W2315951065 cites W2159684938 @default.
• W2315951065 cites W2317202352 @default.
• W2315951065 cites W2318206473 @default.
• W2315951065 cites W2322761193 @default.
• W2315951065 cites W2331110899 @default.
• W2315951065 cites W2950238259 @default.
• W2315951065 doi "https://doi.org/10.1021/am4000326" @default.
• W2315951065 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23484521" @default.
• W2315951065 hasPublicationYear "2013" @default.
• W2315951065 type Work @default.
• W2315951065 sameAs 2315951065 @default.
• W2315951065 citedByCount "36" @default.
• W2315951065 countsByYear W23159510652013 @default.
• W2315951065 countsByYear W23159510652014 @default.
• W2315951065 countsByYear W23159510652015 @default.
• W2315951065 countsByYear W23159510652016 @default.
• W2315951065 countsByYear W23159510652017 @default.
• W2315951065 countsByYear W23159510652018 @default.
• W2315951065 countsByYear W23159510652019 @default.
• W2315951065 countsByYear W23159510652020 @default.
• W2315951065 countsByYear W23159510652021 @default.
• W2315951065 countsByYear W23159510652022 @default.
• W2315951065 countsByYear W23159510652023 @default.
• W2315951065 crossrefType "journal-article" @default.
• W2315951065 hasAuthorship W2315951065A5043502752 @default.
• W2315951065 hasAuthorship W2315951065A5090498291 @default.
• W2315951065 hasConcept C115537861 @default.
• W2315951065 hasConcept C120665830 @default.
• W2315951065 hasConcept C121332964 @default.
• W2315951065 hasConcept C127413603 @default.
• W2315951065 hasConcept C161790260 @default.
• W2315951065 hasConcept C178790620 @default.
• W2315951065 hasConcept C184133267 @default.
• W2315951065 hasConcept C185592680 @default.
• W2315951065 hasConcept C188027245 @default.
• W2315951065 hasConcept C192562407 @default.
• W2315951065 hasConcept C2776920199 @default.
• W2315951065 hasConcept C2777496208 @default.
• W2315951065 hasConcept C2778502040 @default.
• W2315951065 hasConcept C40003534 @default.
• W2315951065 hasConcept C40875361 @default.

• next