Novel in situ-foaming materials derived from a naphthalene-based poly(arylene ether ketone) containing thermally labile groups

2015 ◽  
Vol 6 (28) ◽  
pp. 5125-5132 ◽  
Author(s):  
Duo Qi ◽  
Chengji Zhao ◽  
Liyuan Zhang ◽  
Xuefeng Li ◽  
Guibin Li ◽  
...  
Keyword(s):  

A novel in situ-foaming material was prepared from a naphthalene-based poly(arylene ether ketone) by grafting with thermally-labile tert-butyloxycarbonyl which can decompose and in situ generate gases.

2013 ◽  
Vol 25 (8) ◽  
pp. 879-885 ◽  
Author(s):  
Yinan Zhang ◽  
Dong Jiang ◽  
Hui Wang ◽  
Haibo Zhang ◽  
Zhenhua Jiang

2021 ◽  
Vol 56 (9) ◽  
pp. 5910-5923
Author(s):  
Yanxin Tian ◽  
Yulin He ◽  
Pan Liu ◽  
Hui Zhang ◽  
Qiuying Zheng ◽  
...  

2020 ◽  
Vol 598 ◽  
pp. 117824 ◽  
Author(s):  
Ruisong Xu ◽  
Lin Li ◽  
Mengjie Hou ◽  
Jiajia Xue ◽  
Yuzhe Liu ◽  
...  

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1287 ◽  
Author(s):  
Wenmeng Zhang ◽  
Shaoyun Chen ◽  
Dongyang Chen ◽  
Zhuoliang Ye

Sterically hindered (S)-1,1′-binaphthyl-2,2′-diol had been successfully copolymerized with 4,4′-sulfonyldiphenol and 4,4′-difluorobenzophenone to yield fibrous poly(arylene ether ketone)s (PAEKs) containing various amounts of binaphthyl unit, which was then selectively and efficiently sulfonated using ClSO3H to yield sulfonated poly(arylene ether ketone)s (SPAEKs) with ion exchange capacities (IECs) ranging from 1.40 to 1.89 mmol·g−1. The chemical structures of the polymers were confirmed by 2D 1H–1H COSY NMR and FT-IR. The thermal properties, water uptake, swelling ratio, proton conductivity, oxidative stability and mechanical properties of SPAEKs were investigated in detail. It was found that the conjugated but non-coplanar structure of binaphthyl unit endorsed excellent solubility and film-forming capability to SPAEKs. The SPAEK-50 with an IEC of 1.89 mmol·g−1 exhibited a proton conductivity of 102 mS·cm−1 at 30 °C, much higher than that of the state-of-the-art Nafion N212 membrane and those of many previously reported aromatic analogs, which may be attributed to the likely large intrinsic free volume of SPAEKs created by the highly twisted chain structures and the desirable microscopic morphology. Along with the remarkable water affinity, thermal stabilities and mechanical properties, the SPAEKs were demonstrated to be promising proton exchange membrane (PEM) candidates for potential membrane separations.


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