Abstract
Highly hydrophobic cellulosic nanomaterials were prepared via iodine-catalyzed butyrate esterification of cellulose nanocrystals (CNC). The structure and properties of butyrated cellulose nanocrystals (Bu-CNC) were investigated via advanced spectroscopic, morphological, optical, thermal, contact angle, and coating analyses. Bu-CNC retained cellulose crystallinity, was hydrophobic with a static contact angle of 81.54° and displayed 18.5% enhancement in its thermal stability. Moreover, Bu-CNC possessed a solid multilamellar cellulose II structure and showed liquid crystalline behavior over a wide range of temperatures. Bu-CNC formed transparent flexible films upon drying and was easily dispersible in ethanol and acetone. As a thermally stable hydrophobic liquid crystalline biobased material, Bu-CNC presents a new class of nanomaterial, which potentially suits various industrial and medical applications.
| Original language | English |
|---|---|
| Pages (from-to) | 1338-1346 |
| Number of pages | 9 |
| Journal | ACS Sustainable Chemistry and Engineering |
| Volume | 4 |
| Issue number | 3 |
| DOIs | |
| State | Published - 7 Mar 2016 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Birefringence
- Butyration
- CNC
- Cellulose liquid crystals
- Hydrophobicity
All Science Journal Classification (ASJC) codes
- General Chemistry
- Environmental Chemistry
- General Chemical Engineering
- Renewable Energy, Sustainability and the Environment
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