Synthesis and characterization of cellulose acetate naphthoate with good ultraviolet and chemical resistance
| Autor: | Songwei Xu, Jun Song, Mei Liu, Zhanping Yang, Pengfei Fei, Bowen Cheng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Chemical resistance
Materials science Polymers and Plastics General Chemical Engineering 02 engineering and technology Ultraviolet resistance 010402 general chemistry 021001 nanoscience & nanotechnology medicine.disease_cause 01 natural sciences Cellulose acetate 0104 chemical sciences Characterization (materials science) chemistry.chemical_compound chemistry medicine Organic chemistry Thermal stability Physical and Theoretical Chemistry 0210 nano-technology Ultraviolet |
| Zdroj: | e-Polymers. 17:333-340 |
| ISSN: | 1618-7229 2197-4586 |
| DOI: | 10.1515/epoly-2016-0293 |
| Popis: | Commercial cellulose diacetate with a degree of substitution (DS) of 2.45 was partly deacetylated to cellulose acetate (CA) with different DSs by acid-catalyzed hydrolysis and then reacted with 1-naphthoyl chloride (NpCl) to synthesize CA naphthoate (CANp). Fourier transform infrared and 1H-NMR were used to characterize the chemical structure of CANp. The DS of naphthoate moiety (DSCANp) could be varied from 0.18 to 0.98 by adjusting the molar ratio of –OH in CA unit to NpCl, the DS of CA (DSCA), and the reaction time and temperature. When DSCA was 2.01 and the molar ratio was 1:6, the maximum DSCANp of the product was achieved after a reaction at 80°C for 2 h. With the increase of DSCANp, the thermal stability decreased slightly whereas the anti-ultraviolet property was enhanced. Moreover, the obtained films containing CANp exhibited good ultraviolet resistance as well as chemical resistance. |
| Databáze: | OpenAIRE |
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