Optimization of wood flour acetylation by factorial design and partial least squares regression
Acetylation was performed to reduce the polarity of wood and increase its compatibility with polymer matrices for the production of composites. These reactions were performed first as a function of acetic acid and anhydride concentration in a mixture catalyzed by sulfuric acid. A concentration of 50...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2012-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900011&lng=en&tlng=en |
| _version_ | 1811332732467281920 |
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| author | Lisandra M. K. Nadal Daniele C. Cararo Luís A. Pinheiro Rosilene A. Prestes |
| author_facet | Lisandra M. K. Nadal Daniele C. Cararo Luís A. Pinheiro Rosilene A. Prestes |
| author_sort | Lisandra M. K. Nadal |
| collection | DOAJ |
| description | Acetylation was performed to reduce the polarity of wood and increase its compatibility with polymer matrices for the production of composites. These reactions were performed first as a function of acetic acid and anhydride concentration in a mixture catalyzed by sulfuric acid. A concentration of 50%/50% (v/v) of acetic acid and anhydride was found to produced the highest conversion rate between the functional groups. After these reactions, the kinetics were investigated by varying times and temperatures using a 3² factorial design, and showed time was the most relevant parameter in determining the conversion of hydroxyl into carbonyl groups. |
| first_indexed | 2024-04-13T16:41:12Z |
| format | Article |
| id | doaj.art-ec349639297a4fae808f1d8255408366 |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-04-13T16:41:12Z |
| publishDate | 2012-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-ec349639297a4fae808f1d82554083662022-12-22T02:39:14ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642012-01-013591763176610.1590/S0100-40422012000900011S0100-40422012000900011Optimization of wood flour acetylation by factorial design and partial least squares regressionLisandra M. K. Nadal0Daniele C. Cararo1Luís A. Pinheiro2Rosilene A. Prestes3Universidade Estadual de Ponta GrossaUniversidade Estadual de Ponta GrossaUniversidade Estadual de Ponta GrossaUniversidade Tecnológica Federal do ParanáAcetylation was performed to reduce the polarity of wood and increase its compatibility with polymer matrices for the production of composites. These reactions were performed first as a function of acetic acid and anhydride concentration in a mixture catalyzed by sulfuric acid. A concentration of 50%/50% (v/v) of acetic acid and anhydride was found to produced the highest conversion rate between the functional groups. After these reactions, the kinetics were investigated by varying times and temperatures using a 3² factorial design, and showed time was the most relevant parameter in determining the conversion of hydroxyl into carbonyl groups.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900011&lng=en&tlng=enacetylationfactorial designpartial least square regression |
| spellingShingle | Lisandra M. K. Nadal Daniele C. Cararo Luís A. Pinheiro Rosilene A. Prestes Optimization of wood flour acetylation by factorial design and partial least squares regression Química Nova acetylation factorial design partial least square regression |
| title | Optimization of wood flour acetylation by factorial design and partial least squares regression |
| title_full | Optimization of wood flour acetylation by factorial design and partial least squares regression |
| title_fullStr | Optimization of wood flour acetylation by factorial design and partial least squares regression |
| title_full_unstemmed | Optimization of wood flour acetylation by factorial design and partial least squares regression |
| title_short | Optimization of wood flour acetylation by factorial design and partial least squares regression |
| title_sort | optimization of wood flour acetylation by factorial design and partial least squares regression |
| topic | acetylation factorial design partial least square regression |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000900011&lng=en&tlng=en |
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