Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Polymeric catalytic membranes bearing sulfonic acid functions have been prepared by mutual gamma irradiation at a Co-60 source, of poly(vinyl alcohol) (PVA) membranes and methanesulfonic acid. The effect of various synthesis conditions on membranes' physical-chemical properties and catalytic activity in the esterification reaction between acetic acid and isoamyl alcohol to obtain isoamyl acetate (banana flavor), was evaluated. The membranes were characterized by ATR-FTIR, TPP, AFM and SEM. Water contact angle determinations were also performed. The obtained results showed that within the range of conditions studied the increase in sulfonic acid groups' content is accompanied by an enhancement in the membranes catalytic activity, while the increase in absorbed dose leads to a decrease in catalytic activity.
Original languageEnglish
Title of host publicationProceedings of the 12th Tihany Symposium on Radiation Chemistry
EditorsÁgnes Sáfrány, András Kovács
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Pages1314-1318
DOIs
Publication statusPublished - Sep 2012

Publication series

NameRadiation Physics And Chemistry
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Number9
Volume81
ISSN (Print)0146-5724

Fingerprint

Alcohols
Irradiation
Membranes
Catalyst activity
Sulfonic Acids
Bearings (structural)
Flavors
Esterification
Acetic Acid
Chemical properties
Contact angle
Scanning electron microscopy
Water

Keywords

  • Gamma irradiation
  • Isoamyl acetate
  • Poly(vinyl alcohol)
  • Polymeric catalytic membranes
  • Sulfonic groups

Cite this

Casimiro, M. H., Silva, A. G., Vaz Pinto, J., Ramos, A. M. M., Vital, J. S. M., & Ferreira, L. M. (2012). Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation. In Á. Sáfrány, & A. Kovács (Eds.), Proceedings of the 12th Tihany Symposium on Radiation Chemistry (pp. 1314-1318). (Radiation Physics And Chemistry; Vol. 81, No. 9). PERGAMON-ELSEVIER SCIENCE LTD. https://doi.org/10.1016/j.radphyschem.2012.01.036
Casimiro, Maria Helena ; Silva, A. G. ; Vaz Pinto, Joana ; Ramos, Ana Maria Martelo ; Vital, Joaquim Silvério Marques ; Ferreira, Luis M. / Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation. Proceedings of the 12th Tihany Symposium on Radiation Chemistry. editor / Ágnes Sáfrány ; András Kovács. PERGAMON-ELSEVIER SCIENCE LTD, 2012. pp. 1314-1318 (Radiation Physics And Chemistry; 9).
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title = "Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation",
abstract = "Polymeric catalytic membranes bearing sulfonic acid functions have been prepared by mutual gamma irradiation at a Co-60 source, of poly(vinyl alcohol) (PVA) membranes and methanesulfonic acid. The effect of various synthesis conditions on membranes' physical-chemical properties and catalytic activity in the esterification reaction between acetic acid and isoamyl alcohol to obtain isoamyl acetate (banana flavor), was evaluated. The membranes were characterized by ATR-FTIR, TPP, AFM and SEM. Water contact angle determinations were also performed. The obtained results showed that within the range of conditions studied the increase in sulfonic acid groups' content is accompanied by an enhancement in the membranes catalytic activity, while the increase in absorbed dose leads to a decrease in catalytic activity.",
keywords = "Sulfonic groups, Polymeric catalytic membranes, Gamma irradiation, Poly(vinyl alcohol), Isoamyl acetate, Gamma irradiation , Isoamyl acetate , Poly(vinyl alcohol) , Polymeric catalytic membranes , Sulfonic groups",
author = "Casimiro, {Maria Helena} and Silva, {A. G.} and {Vaz Pinto}, Joana and Ramos, {Ana Maria Martelo} and Vital, {Joaquim Silv{\'e}rio Marques} and Ferreira, {Luis M.}",
note = "Sem PDF. This work has been partially supported by Funda{\cc}{\~a}o para a Ci{\^e}ncia e a Tecnologia (Grants PEst-C/EQB/LA0006/2011 , SFRH/BPD/26961/2006 and SFRH/BPD/44874/2008 )",
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Casimiro, MH, Silva, AG, Vaz Pinto, J, Ramos, AMM, Vital, JSM & Ferreira, LM 2012, Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation. in Á Sáfrány & A Kovács (eds), Proceedings of the 12th Tihany Symposium on Radiation Chemistry. Radiation Physics And Chemistry, no. 9, vol. 81, PERGAMON-ELSEVIER SCIENCE LTD, pp. 1314-1318. https://doi.org/10.1016/j.radphyschem.2012.01.036

Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation. / Casimiro, Maria Helena; Silva, A. G. ; Vaz Pinto, Joana; Ramos, Ana Maria Martelo; Vital, Joaquim Silvério Marques; Ferreira, Luis M.

Proceedings of the 12th Tihany Symposium on Radiation Chemistry. ed. / Ágnes Sáfrány; András Kovács. PERGAMON-ELSEVIER SCIENCE LTD, 2012. p. 1314-1318 (Radiation Physics And Chemistry; Vol. 81, No. 9).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation

AU - Casimiro, Maria Helena

AU - Silva, A. G.

AU - Vaz Pinto, Joana

AU - Ramos, Ana Maria Martelo

AU - Vital, Joaquim Silvério Marques

AU - Ferreira, Luis M.

N1 - Sem PDF. This work has been partially supported by Fundação para a Ciência e a Tecnologia (Grants PEst-C/EQB/LA0006/2011 , SFRH/BPD/26961/2006 and SFRH/BPD/44874/2008 )

PY - 2012/9

Y1 - 2012/9

N2 - Polymeric catalytic membranes bearing sulfonic acid functions have been prepared by mutual gamma irradiation at a Co-60 source, of poly(vinyl alcohol) (PVA) membranes and methanesulfonic acid. The effect of various synthesis conditions on membranes' physical-chemical properties and catalytic activity in the esterification reaction between acetic acid and isoamyl alcohol to obtain isoamyl acetate (banana flavor), was evaluated. The membranes were characterized by ATR-FTIR, TPP, AFM and SEM. Water contact angle determinations were also performed. The obtained results showed that within the range of conditions studied the increase in sulfonic acid groups' content is accompanied by an enhancement in the membranes catalytic activity, while the increase in absorbed dose leads to a decrease in catalytic activity.

AB - Polymeric catalytic membranes bearing sulfonic acid functions have been prepared by mutual gamma irradiation at a Co-60 source, of poly(vinyl alcohol) (PVA) membranes and methanesulfonic acid. The effect of various synthesis conditions on membranes' physical-chemical properties and catalytic activity in the esterification reaction between acetic acid and isoamyl alcohol to obtain isoamyl acetate (banana flavor), was evaluated. The membranes were characterized by ATR-FTIR, TPP, AFM and SEM. Water contact angle determinations were also performed. The obtained results showed that within the range of conditions studied the increase in sulfonic acid groups' content is accompanied by an enhancement in the membranes catalytic activity, while the increase in absorbed dose leads to a decrease in catalytic activity.

KW - Sulfonic groups

KW - Polymeric catalytic membranes

KW - Gamma irradiation

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KW - Gamma irradiation

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KW - Sulfonic groups

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DO - 10.1016/j.radphyschem.2012.01.036

M3 - Conference contribution

T3 - Radiation Physics And Chemistry

SP - 1314

EP - 1318

BT - Proceedings of the 12th Tihany Symposium on Radiation Chemistry

A2 - Sáfrány, Ágnes

A2 - Kovács, András

PB - PERGAMON-ELSEVIER SCIENCE LTD

ER -

Casimiro MH, Silva AG, Vaz Pinto J, Ramos AMM, Vital JSM, Ferreira LM. Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation. In Sáfrány Á, Kovács A, editors, Proceedings of the 12th Tihany Symposium on Radiation Chemistry. PERGAMON-ELSEVIER SCIENCE LTD. 2012. p. 1314-1318. (Radiation Physics And Chemistry; 9). https://doi.org/10.1016/j.radphyschem.2012.01.036