Preparations of Tough and Conductive PAMPS/PAA Double Network Hydrogels Containing Cellulose Nanofibers and Polypyrroles
文献类型：期刊论文
| 作者 | Tu, Cheng-Wei; Tsai, Fang-Chang; Chen, Jem-Kun; Wang, Huei-Ping; Lee, Rong-Ho; Zhang, Jiawei; Chen, Tao; Wang, Chung-Chi; Huang, Chih-Feng |
| 刊名 | POLYMERS
 |
| 出版日期 | 2020 |
| 卷号 | 12期号:12 |
| 关键词 | DOPED GRAPHENE/POLYANILINE HYDROGELS TEMPO-MEDIATED OXIDATION HIGH-PERFORMANCE STRENGTH ACID) |
| 英文摘要 | To afford an intact double network (sample abbr.: DN) hydrogel, two-step crosslinking reactions of poly(2-acrylamido-2-methylpropanesulfonic acid) (i.e., PAMPS first network) and then poly(acrylic acid) (i.e., PAA second network) were conducted both in the presence of crosslinker (N,N '-methylenebisacrylamide (MBAA)). Similar to the two-step processes, different contents of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) oxidized cellulose nanofibers (TOCN: 1, 2, and 3 wt.%) were initially dispersed in the first network solutions and then crosslinked. The TOCN-containing PAMPS first networks subsequently soaked in AA and crosslinker and conducted the second network crosslinking reactions (TOCN was then abbreviated as T for DN samples). As the third step, various (T-)DN hydrogels were then treated with different concentrations of FeCl3(aq) solutions (5, 50, 100, and 200 mM). Through incorporations of ferric ions into (T-)DN hydrogels, notably, three purposes are targeted: (i) strengthen the (T-)DN hydrogels through ionic bonding, (ii) significantly render ionic conductivity of hydrogels, and (iii) serve as a catalyst for the forth step to proceed with in situ chemical oxidative polymerizations of pyrroles to afford polypyrrole-containing (sample abbr.: Py) hydrogels [i.e., (T-)Py-DN samples]. The characteristic functional groups of PAMPS, PAA, and Py were confirmed by FT-IR. Uniform microstructures were observed by cryo scanning electron microscopy (cryo-SEM). These results indicated that homogeneous composites of T-Py-DN hydrogels were obtained through the four-step process. All dry samples showed similar thermal degradation behaviors from the thermogravimetric analysis (TGA). The T-2-Py-5-DN sample (i.e., containing 2 wt.% TOCN with 5 mM FeCl3(aq) treatment) showed the best tensile strength and strain at breaking properties (i.e., sigma(Tb) = 450 kPa and epsilon(Tb) = 106%). With the same compositions, a high conductivity of 3.34 x 10(-3) S/cm was acquired. The tough T-2-Py-5-DN hydrogel displayed good conductive reversibility during several stretching-and-releasing cycles of 50-100-0%, demonstrating a promising candidate for bioelectronic or biomaterial applications. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22408]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2020专题_期刊论文 2021专题_期刊论文 |
| 作者单位 | 1.Huang, CF (corresponding author), Natl Chung Hsing Univ, Ctr Adv Sci & Technol iCAST, Dept Chem Engn, Taichung 40227, Taiwan. 2.Tsai, FC (corresponding author), Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Sch Soaked Mat Sci & Engn,Minist Educ, Hubei Key Lab Polymer Mat,Key Lab Green Preparat, Wuhan 430062, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Tu, Cheng-Wei,Tsai, Fang-Chang,Chen, Jem-Kun,et al. Preparations of Tough and Conductive PAMPS/PAA Double Network Hydrogels Containing Cellulose Nanofibers and Polypyrroles[J]. POLYMERS,2020,12(12). |
| APA | Tu, Cheng-Wei.,Tsai, Fang-Chang.,Chen, Jem-Kun.,Wang, Huei-Ping.,Lee, Rong-Ho.,...&Huang, Chih-Feng.(2020).Preparations of Tough and Conductive PAMPS/PAA Double Network Hydrogels Containing Cellulose Nanofibers and Polypyrroles.POLYMERS,12(12). |
| MLA | Tu, Cheng-Wei,et al."Preparations of Tough and Conductive PAMPS/PAA Double Network Hydrogels Containing Cellulose Nanofibers and Polypyrroles".POLYMERS 12.12(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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