当前位置:
X-MOL 学术
›
Macromolecules
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Sulfonated Polybenzothiazoles Containing Hexafluoroisopropyl Units for Proton Exchange Membrane Fuel Cells
Macromolecules ( IF 5.1 ) Pub Date : 2023-07-03 , DOI: 10.1021/acs.macromol.3c00301
Gang Wang 1 , Shuai Yang 1 , Na Yoon Kang 2 , Bingyan Hua 1 , Mingxia Lu 1 , Hongliang Wei 1 , Jiaqi Kang 1 , Wenshuai Tang 1 , Young Moo Lee 2
Macromolecules ( IF 5.1 ) Pub Date : 2023-07-03 , DOI: 10.1021/acs.macromol.3c00301
Gang Wang 1 , Shuai Yang 1 , Na Yoon Kang 2 , Bingyan Hua 1 , Mingxia Lu 1 , Hongliang Wei 1 , Jiaqi Kang 1 , Wenshuai Tang 1 , Young Moo Lee 2
Affiliation
![]() |
A sulfonated dicarboxylic monomer containing hexafluoroisopropyl, i.e., 3,3′-disulfonate-2,2-bis(4-carboxyphenyl)hexafluoropropane (SCFA), was prepared via sulfonation and oxidation to synthesize novel sulfonated polybenzothiazoles (sPBT-F) through polycondensation of 2,2-bis(4-carboxyphenyl)hexafluoropropane (CFA), SCFA, and 2,5-diamino-1,4-benzenedithiol dihydrochloride (DABDT). These sPBT-F series polymers exhibited excellent solubility due to the incorporation of a flexible hexafluoroisopropyl group. Meanwhile, the sPBT-F series polymers displayed high thermal stability and were used to prepare tough and soft membranes by solution casting. Interestingly, sPBT-F series membranes exhibited excellent water uptake and low swelling ratio, indicating excellent dimensional stability. AFM images displayed a region of obvious separation of light/dark phases, indicating high proton conductivity of sPBT-F series membranes. The sPBT-F82.5 membrane with a high degree of sulfonation demonstrated a conductivity of 0.14 S cm–1 at 80 °C and 100% RH, superior to the results of Nafion 117. Furthermore, the sPBT-F82.5 membrane displayed a maximum power density of 344.33 mW cm–2 and superb durability at a current density of 0.2 A cm–2 for 20 h. In summary, the sPBT-F polymers are potential matrix materials for PEMs.
中文翻译:
用于质子交换膜燃料电池的含有六氟异丙基单元的磺化聚苯并噻唑
通过磺化和氧化制备含六氟异丙基的磺化二羧酸单体,即3,3'-二磺酸-2,2-双(4-羧基苯基)六氟丙烷(SCFA),并通过缩聚反应合成新型磺化聚苯并噻唑(sPBT-F)。 2,2-双(4-羧基苯基)六氟丙烷(CFA)、SCFA和2,5-二氨基-1,4-苯二硫醇二盐酸盐(DABDT)。这些 sPBT-F 系列聚合物由于引入了柔性六氟异丙基而表现出优异的溶解性。同时,sPBT-F系列聚合物表现出较高的热稳定性,可通过溶液流延法制备坚韧和柔软的膜。有趣的是,sPBT-F系列膜表现出优异的吸水率和低溶胀比,表明优异的尺寸稳定性。AFM 图像显示出明显的明/暗相分离区域,表明 sPBT-F 系列膜具有高质子电导率。高磺化度的sPBT-F82.5膜的电导率为0.14 S cm–1在 80 °C 和 100% RH 下,优于 Nafion 117 的结果。此外,sPBT-F82.5 膜在 0.2 A cm 的电流密度下表现出 344.33 mW cm –2 的最大功率密度和卓越的耐用性–2 20 小时。总之,sPBT-F 聚合物是 PEM 的潜在基质材料。
更新日期:2023-07-03
中文翻译:

用于质子交换膜燃料电池的含有六氟异丙基单元的磺化聚苯并噻唑
通过磺化和氧化制备含六氟异丙基的磺化二羧酸单体,即3,3'-二磺酸-2,2-双(4-羧基苯基)六氟丙烷(SCFA),并通过缩聚反应合成新型磺化聚苯并噻唑(sPBT-F)。 2,2-双(4-羧基苯基)六氟丙烷(CFA)、SCFA和2,5-二氨基-1,4-苯二硫醇二盐酸盐(DABDT)。这些 sPBT-F 系列聚合物由于引入了柔性六氟异丙基而表现出优异的溶解性。同时,sPBT-F系列聚合物表现出较高的热稳定性,可通过溶液流延法制备坚韧和柔软的膜。有趣的是,sPBT-F系列膜表现出优异的吸水率和低溶胀比,表明优异的尺寸稳定性。AFM 图像显示出明显的明/暗相分离区域,表明 sPBT-F 系列膜具有高质子电导率。高磺化度的sPBT-F82.5膜的电导率为0.14 S cm–1在 80 °C 和 100% RH 下,优于 Nafion 117 的结果。此外,sPBT-F82.5 膜在 0.2 A cm 的电流密度下表现出 344.33 mW cm –2 的最大功率密度和卓越的耐用性–2 20 小时。总之,sPBT-F 聚合物是 PEM 的潜在基质材料。