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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wang, Shuaiyang Ren, Junli Li, Weiying Sun, Runcang Liu, Shijie |
| Description | Country affiliation: China Author Affiliation: Wang S ( State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.); Ren J ( State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China. Electronic address: renjunli@scut.edu.cn.); Li W ( State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.); Sun R ( State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China); Liu S ( State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China) |
| Abstract | Composite films of xylan and polyvinyl alcohol were produced with citric acid as a new plasticizer or a cross-linking agent. The effects of citric acid content and polyvinyl alcohol/xylan weight ratio on the mechanical properties, thermal stability, solubility, degree of swelling and water vapor permeability of the composite films were investigated. The intermolecular interactions and morphology of composite films were characterized by FTIR spectroscopy and SEM. The results indicated that polyvinyl alcohol/xylan composite films had good compatibility. With an increase in citric acid content from 10% to 50%, the tensile strength reduced from 35.1 to 11.6 MPa. However, the elongation at break increased sharply from 15.1% to 249.5%. The values of water vapor permeability ranged from 2.35 to 2.95 × 10(-7)g/(mm(2)h). Interactions between xylan and polyvinyl alcohol in the presence of citric acid become stronger, which were caused by hydrogen bond and ester bond formation among the components during film forming. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Journal | Carbohydrate Polymers |
| Volume Number | 103 |
| e-ISSN | 18791344 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-03-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Citric Acid Chemistry Cross-linking Reagents Plasticizers Polyvinyl Alcohol Xylans Chemical Synthesis Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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