دورية أكاديمية
pH-Induced Electrostatic Interaction between Polyacrylates and Amino-Functionalized Graphene Oxide on Stability and Coating Performances
| العنوان: | pH-Induced Electrostatic Interaction between Polyacrylates and Amino-Functionalized Graphene Oxide on Stability and Coating Performances |
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| المؤلفون: | Wenbo Zhang, Sichun Li, Jianzhong Ma, Yingke Wu, Chao Liu, Hongxia Yan |
| المصدر: | Polymers, Vol 13, Iss 19, p 3406 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Organic chemistry |
| مصطلحات موضوعية: | graphene oxide, polyacrylate, amino group, surface charge, Organic chemistry, QD241-441 |
| الوصف: | Electrostatic interaction between polymers and nanofillers is of great importance for the properties and design of their composites. Polyacrylates with carboxyl, hydroxyl and acylamino groups were synthesized via emulsion polymerization and marked as P(MMA-BA-AA), P(MMA-BA-HEA) and P(MMA-BA-AM), respectively. Amino-functionalized graphene oxide (NGO) was prepared by Hoffman rearrangement using GO as the raw material. The polyacrylate composites were prepared by mixing NGO with each of the three kinds of polyacrylate. Effects of pH and NGO amounts on the properties of polyacrylate composites were studied. It was found that the surface charge of polyacrylate and NGO had the greatest effect on the composite properties. P(MMA-BA-AM)/NGO was not stable at any pH (2–8). With the same NGO amount of 0.1 wt%, the toughening effect of NGO on P(MMA-BA-AA) was larger than that on P(MMA-BA-HEA). The break strength of P(MMA-BA-AA)/NGO and P(MMA-BA-HEA)/NGO increased to 5.22 MPa by 47% and 3.08 MPa by 31%, respectively. NGO could increase the thermal stability of P(MMA-BA-AA) and P(MMA-BA-HEA) to different degrees. The polyacrylate film-forming processes were tested, and it showed that NGO influenced polyacrylate through the whole film-forming process. The results provide potential methods for the design of polymer-based nanocomposites. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 13193406 2073-4360 |
| Relation: | https://www.mdpi.com/2073-4360/13/19/3406; https://doaj.org/toc/2073-4360 |
| DOI: | 10.3390/polym13193406 |
| URL الوصول: | https://doaj.org/article/7a59e3e66f2841998b4f3bbff344aa01 |
| رقم الأكسشن: | edsdoj.7a59e3e66f2841998b4f3bbff344aa01 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 13193406 20734360 |
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| DOI: | 10.3390/polym13193406 |