دورية أكاديمية
Water-Content-Dependent Switching of the Bending Behavior of Photoresponsive Hydrogels Composed of Hydrophilic Acrylamide-Based Main Chains and Hydrophobic Azobenzene
| العنوان: | Water-Content-Dependent Switching of the Bending Behavior of Photoresponsive Hydrogels Composed of Hydrophilic Acrylamide-Based Main Chains and Hydrophobic Azobenzene |
|---|---|
| المؤلفون: | Junsu Park, Yuki Shimizu, Xin Zhou, Ryohei Ikura, Go Matsuba, Yoshinori Takashima |
| المصدر: | Gels, Vol 9, Iss 8, p 658 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Science LCC:Chemistry LCC:Inorganic chemistry LCC:General. Including alchemy |
| مصطلحات موضوعية: | photoresponsiveness, moisture sensitivity, bending behavior switching, phase separated structure, azobenzene, Science, Chemistry, QD1-999, Inorganic chemistry, QD146-197, General. Including alchemy, QD1-65 |
| الوصف: | Photoresponsiveness is a promising characteristic of stimulus-responsive materials. Photoresponsiveness can be achieved by incorporating photoresponsive molecules into polymeric materials. In addition, multiple-stimuli-responsive materials have attracted scientists’ interest. Among the numerous multiple-stimuli-responsive materials, moisture- and photoresponsive materials are the focus of this report. These stimuli-responsive materials responded to the stimuli synergistically or orthogonally. Unlike most stimulus-responsive materials utilizing moisture and light as stimuli, the materials studied herein switch their photoresponsiveness in the presence of moisture. Appropriate copolymers consisting of hydrophilic acrylamide-based monomers for the main chain and hydrophobic azobenzene moieties switched their bending behaviors at 6–9 wt% water contents. At water contents lower than 6 wt%, the polymeric materials bent away from the light source, while they bent toward the light source at water contents higher than 10 wt%. At a low water content, the bending behaviors can be described on the molecular scale. At a high water content, the bending behavior requires consideration of the phase scale, not only the molecular scale. By controlling the balance between hydrophilicity and hydrophobicity, the switching behavior was achieved. This switching behavior may inspire additional strategies for the application of polymeric material as actuators. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2310-2861 |
| Relation: | https://www.mdpi.com/2310-2861/9/8/658; https://doaj.org/toc/2310-2861 |
| DOI: | 10.3390/gels9080658 |
| URL الوصول: | https://doaj.org/article/b72ab6d8738246cc9e2630590b1b1ddc |
| رقم الأكسشن: | edsdoj.b72ab6d8738246cc9e2630590b1b1ddc |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 23102861 |
|---|---|
| DOI: | 10.3390/gels9080658 |