| Carboxymethyl chitosan has sensitive two-way CO2-responsive hydrophilic/hydrophobic feature | |
|---|---|
| 學年 | 109 |
| 學期 | 1 |
| 出版（發表）日期 | 2020-08-01 |
| 作品名稱 | Carboxymethyl chitosan has sensitive two-way CO2-responsive hydrophilic/hydrophobic feature |
| 作品名稱（其他語言） | |
| 著者 | Yeong-Tarng Shieh; Yu-De Chen; Trong-Ming Don |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Carbohydrate Polymers 241, 116408 |
| 摘要 | Carboxymethyl chitosans (CMC) with various degrees of carboxymethyl substitution were prepared and investigated on their changes in water solubility in response to bubbling of CO2 or N2 as a function of the relative concentrations of COOH and NH2 side groups. When having similar concentrations of COOH and NH2, the produced CMC was water soluble at pH 10 and consecutively experienced peculiar dissolution-to-precipitation-to-dissolution during bubbling of CO2, and experienced reverse dissolution-to-precipitation-to-dissolution process during subsequently bubbling of N2. With the concentration of COOH much higher than that of NH2, the water soluble CMC at pH 10 exhibited no phase changes in response to bubbling of CO2 and N2. This newly developed CMC solution system with novel CO2 responsive amphiphilic feature has a potential use as a CO2 switchable surfactant to control interface of mixtures of hydrophilic and hydrophobic species in emulsification/demulsification applications. |
| 關鍵字 | Chitosan;N, O-carboxymethyl chitosan;CO2 responsiveness;Amphiphilic properties |
| 語言 | en |
| ISSN | 1879-1344 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Shieh, Y.-T. |
| 審稿制度 | 是 |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/119337 ) |
| SDGS | 優質教育 |
GoogleAnalytics