Engineering a hyperbranched polyimide membrane for shape memory and CO2 capture | |
Department | 先进润滑与防护材料研究发展中心 |
Yang ZH(杨增辉)1,2; Wang QH(王齐华)1; Wang TM(王廷梅)1; Wang QH(王齐华) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | Journal of Materials Chemistry A |
ISSN | 2050-7488 |
Volume | 5Issue:26Pages:13823-13833 |
Abstract | The combination of shape memory with other new-fashioned functions will facilitate great potential in the development of shape memory materials. Demonstrated here is a multifunctional polymer based on hyperbranched polyimides (HBPIs) that integrates shape memory into a gas capture membrane. The new kind of shape memory gas capture HBPIs were prepared by branching conventional thermoplastic polyimides via a two-step method with 2,4,6-triaminopyrimidine (TAP) as the branched center. The optimized HBPIs exhibit good shape-memory properties with shape fixity above 98% and recovery values above 82%. Moreover, they show large Brunauer–Emmett–Teller (BET) surface areas (218–387 m2 g−1), mesoporous characteristics (3–5 nm) and narrow pore size distribution, which endow them with preferable CO2 capture (up to 36.93 cm3 g−1) and selectivity (up to 66.3). The comprehensive properties, especially the shape recovery ratio and CO2 uptake, of the HBPIs can be effectively controlled by adjusting the degree of branching (DB) or the content of the rigid heterocyclic diamine, 5-amino-2-(4-aminobenzene) benzoxazole (BOA). Our multifunctional shape memory polymer (SMP) may expand the application field of shape memory and accelerate the development of SMPs. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c7ta02842c |
Funding Organization | the National Natural Science Foundation of China (Grant 51673205);the National Basic Research Program of China (973 Program, Grant No. 2015CB057502) |
Indexed By | SCI |
If | 8.867 |
Language | 英语 |
Funding Project | 聚合物自润滑复合材料研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22096 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang QH(王齐华) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
Recommended Citation GB/T 7714 | Yang ZH,Wang QH,Wang TM,et al. Engineering a hyperbranched polyimide membrane for shape memory and CO2 capture[J]. Journal of Materials Chemistry A,2017,5(26):13823-13833. |
APA | Yang ZH,Wang QH,Wang TM,&王齐华.(2017).Engineering a hyperbranched polyimide membrane for shape memory and CO2 capture.Journal of Materials Chemistry A,5(26),13823-13833. |
MLA | Yang ZH,et al."Engineering a hyperbranched polyimide membrane for shape memory and CO2 capture".Journal of Materials Chemistry A 5.26(2017):13823-13833. |
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