Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose
Recently, surface functionality and thermal property of the green nanomaterials have received wide attention in numerous applications. In this study, microcrystalline cellulose (MCC) was used to prepare the nanocrystalline celluloses (NCCs) using acid hydrolysis method. The NCCs was treated with TEM...
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| Format: | Article |
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Elsevier
2017
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| _version_ | 1796947173252792320 |
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| author | Mhd Haniffa, Mhd Abd Cader Ching, Yern Chee Chuah, Cheng Hock Kuan, Yong Ching Nik-Ghazali, Nik Nazri Abdullah, Luqman Chuah Liou, Nai-Shang |
| author_facet | Mhd Haniffa, Mhd Abd Cader Ching, Yern Chee Chuah, Cheng Hock Kuan, Yong Ching Nik-Ghazali, Nik Nazri Abdullah, Luqman Chuah Liou, Nai-Shang |
| author_sort | Mhd Haniffa, Mhd Abd Cader |
| collection | UM |
| description | Recently, surface functionality and thermal property of the green nanomaterials have received wide attention in numerous applications. In this study, microcrystalline cellulose (MCC) was used to prepare the nanocrystalline celluloses (NCCs) using acid hydrolysis method. The NCCs was treated with TEMPO [(2,2,6,6-tetramethylpiperidin-1-yl)oxy radical]-oxidation to prepare TEMPO-oxidized NCCs. Cellulose nanofibrils (CNFs) also prepared from MCC using TEMPO-oxidation. The effects of rapid cooling and chemical treatments on the thermo-structural property studies of the prepared nanocelluloses were investigated through FTIR, thermogravimetric analysis-derivative thermogravimetric (TGA-DTG), and XRD. A posteriori knowledge of the FTIR and TGA-DTG analysis revealed that the rapid cooling treatment enhanced the hydrogen bond energy and thermal stability of the TEMPO-oxidized NCC compared to other nanocelluloses. XRD analysis exhibits the effect of rapid cooling on pseudo 2I helical conformation. This was the first investigation performed on the effect of rapid cooling on structural properties of the nanocellulose. |
| first_indexed | 2024-03-06T05:42:54Z |
| format | Article |
| id | um.eprints-17570 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:42:54Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-175702019-12-06T06:02:42Z http://eprints.um.edu.my/17570/ Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose Mhd Haniffa, Mhd Abd Cader Ching, Yern Chee Chuah, Cheng Hock Kuan, Yong Ching Nik-Ghazali, Nik Nazri Abdullah, Luqman Chuah Liou, Nai-Shang QD Chemistry TP Chemical technology Recently, surface functionality and thermal property of the green nanomaterials have received wide attention in numerous applications. In this study, microcrystalline cellulose (MCC) was used to prepare the nanocrystalline celluloses (NCCs) using acid hydrolysis method. The NCCs was treated with TEMPO [(2,2,6,6-tetramethylpiperidin-1-yl)oxy radical]-oxidation to prepare TEMPO-oxidized NCCs. Cellulose nanofibrils (CNFs) also prepared from MCC using TEMPO-oxidation. The effects of rapid cooling and chemical treatments on the thermo-structural property studies of the prepared nanocelluloses were investigated through FTIR, thermogravimetric analysis-derivative thermogravimetric (TGA-DTG), and XRD. A posteriori knowledge of the FTIR and TGA-DTG analysis revealed that the rapid cooling treatment enhanced the hydrogen bond energy and thermal stability of the TEMPO-oxidized NCC compared to other nanocelluloses. XRD analysis exhibits the effect of rapid cooling on pseudo 2I helical conformation. This was the first investigation performed on the effect of rapid cooling on structural properties of the nanocellulose. Elsevier 2017 Article PeerReviewed Mhd Haniffa, Mhd Abd Cader and Ching, Yern Chee and Chuah, Cheng Hock and Kuan, Yong Ching and Nik-Ghazali, Nik Nazri and Abdullah, Luqman Chuah and Liou, Nai-Shang (2017) Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose. Carbohydrate Polymers, 173. pp. 91-99. ISSN 0144-8617, DOI https://doi.org/10.1016/j.carbpol.2017.05.084 <https://doi.org/10.1016/j.carbpol.2017.05.084>. https://doi.org/10.1016/j.carbpol.2017.05.084 DOI: 10.1016/j.carbpol.2017.05.084 |
| spellingShingle | QD Chemistry TP Chemical technology Mhd Haniffa, Mhd Abd Cader Ching, Yern Chee Chuah, Cheng Hock Kuan, Yong Ching Nik-Ghazali, Nik Nazri Abdullah, Luqman Chuah Liou, Nai-Shang Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose |
| title | Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose |
| title_full | Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose |
| title_fullStr | Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose |
| title_full_unstemmed | Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose |
| title_short | Effect of TEMPO-oxidization and rapid cooling on thermo-structural properties of nanocellulose |
| title_sort | effect of tempo oxidization and rapid cooling on thermo structural properties of nanocellulose |
| topic | QD Chemistry TP Chemical technology |
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