| Yazarlar |
Nihat Sami Çetin
İzmir Katip Çelebi Üniversitesi, Türkiye |
|
Nilgül Çetin
İzmir Katip Çelebi Üniversitesi, Türkiye |
Doç. Dr. Emre BİRİNCİ
Kastamonu Üniversitesi, Türkiye |
| Özet |
| The purpose of this study was to compare two different acetylation mechanisms using acetic anhydride (AA) or vinyl acetate (VA) modification with using various catalysts. Acetylation of Scots pine wood flour with acetic anhydride could be significantly improved in the presence of potassium acetate, potassium carbonate, and sodium carbonate at 100°C. Sodium carbonate had low effect on VA acetylation, potassium acetate was found to be more effective, and potassium carbonate was better for vinyl acetate modification of wood flour. The two modification methods and the effect of different catalysts on AA or VA modification were characterized by infrared and NMR spectra and analyzed in detail. The acetylation of Scots pine flour with VA and AA showed almost the same WPG values for catalysts when based on long reaction times. Copyright © Taylor & Francis Group, LLC. |
| Anahtar Kelimeler |
| Acetic anhydride | potassium acetate | potassium carbonate | sodium carbonate | vinyl acetate |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY |
| Dergi ISSN | 0277-3813 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q1 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2011 |
| Cilt No | 31 |
| Sayı | 2 |
| Sayfalar | 142 / 153 |
| Doi Numarası | 10.1080/02773813.2010.503981 |
| Makale Linki | http://www.tandfonline.com/doi/pdf/10.1080/02773813.2010.503981 |
