Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blend
The effect of the degree of deacetylation of chitosan on the chemical structure, thermal properties, and compatibility of chitosan/polyamide66 (CS/PA66) blends were investigated. Blends of CS with PA66 were prepared via the solution casting technique by using 85% formic acid. Structural interaction...
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| Language: | English |
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North Carolina State University
2012-11-01
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| Series: | BioResources |
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| Online Access: | http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5568_Zainoha_THJ_Deacetylation_Chitosan_Thermal_Stab_Amide_3078.pdf |
| _version_ | 1828422125414776832 |
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| author | Zainoha Zakaria Zatil Izzah Mohammad Jawaid Azman Hassan |
| author_facet | Zainoha Zakaria Zatil Izzah Mohammad Jawaid Azman Hassan |
| author_sort | Zainoha Zakaria |
| collection | DOAJ |
| description | The effect of the degree of deacetylation of chitosan on the chemical structure, thermal properties, and compatibility of chitosan/polyamide66 (CS/PA66) blends were investigated. Blends of CS with PA66 were prepared via the solution casting technique by using 85% formic acid. Structural interaction between PA66, CS, and CS/PA66 blends were analyzed by infrared spectroscopy. FT-IR spectra showed displacement of the carbonyl band of the amide group of chitosan toward smaller wave numbers, indicating possible existence of hydrogen bonding between the two macromolecules. Thermal and morphological behavior of films containing chitosan with degree of deacetylation (DD) ranging from 52.9% to 85% in the polymer blends were investigated by thermogravimetric analysis and scanning electron microscopy. Thermal analysis showed that the CS/PA66 blends became more thermally stable than pure chitosan. The morphological behavior observed by scanning electron microscopy indicated phase segregation in all types of blending. Acetyl content in chitosan was found to influence the degree of compatibility. Decreasing the acetyl group or increasing the DD of chitosan increases the compatibility of the CS/PA66 blends. |
| first_indexed | 2024-12-10T15:43:09Z |
| format | Article |
| id | doaj.art-92b79f2de52146d69b4142e806174878 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-12-10T15:43:09Z |
| publishDate | 2012-11-01 |
| publisher | North Carolina State University |
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| series | BioResources |
| spelling | doaj.art-92b79f2de52146d69b4142e8061748782022-12-22T01:43:02ZengNorth Carolina State UniversityBioResources1930-21262012-11-017455685580Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blendZainoha ZakariaZatil IzzahMohammad JawaidAzman HassanThe effect of the degree of deacetylation of chitosan on the chemical structure, thermal properties, and compatibility of chitosan/polyamide66 (CS/PA66) blends were investigated. Blends of CS with PA66 were prepared via the solution casting technique by using 85% formic acid. Structural interaction between PA66, CS, and CS/PA66 blends were analyzed by infrared spectroscopy. FT-IR spectra showed displacement of the carbonyl band of the amide group of chitosan toward smaller wave numbers, indicating possible existence of hydrogen bonding between the two macromolecules. Thermal and morphological behavior of films containing chitosan with degree of deacetylation (DD) ranging from 52.9% to 85% in the polymer blends were investigated by thermogravimetric analysis and scanning electron microscopy. Thermal analysis showed that the CS/PA66 blends became more thermally stable than pure chitosan. The morphological behavior observed by scanning electron microscopy indicated phase segregation in all types of blending. Acetyl content in chitosan was found to influence the degree of compatibility. Decreasing the acetyl group or increasing the DD of chitosan increases the compatibility of the CS/PA66 blends.http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5568_Zainoha_THJ_Deacetylation_Chitosan_Thermal_Stab_Amide_3078.pdfChitosanPolyamide66DeacetylationPolymer blendsThermal propertiesMorphological properties |
| spellingShingle | Zainoha Zakaria Zatil Izzah Mohammad Jawaid Azman Hassan Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blend BioResources Chitosan Polyamide66 Deacetylation Polymer blends Thermal properties Morphological properties |
| title | Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blend |
| title_full | Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blend |
| title_fullStr | Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blend |
| title_full_unstemmed | Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blend |
| title_short | Effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan-polyamide blend |
| title_sort | effect of degree of deacetylation of chitosan on thermal stability and compatibility of chitosan polyamide blend |
| topic | Chitosan Polyamide66 Deacetylation Polymer blends Thermal properties Morphological properties |
| url | http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5568_Zainoha_THJ_Deacetylation_Chitosan_Thermal_Stab_Amide_3078.pdf |
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