|
|||||
|
|
Sulfonated copoly(norbornene)s bearing sultone pendant groups and application as proton exchange membranes candidates |
|
| Authors: | Meiping Hu Xiaohui He Yiwang Chen Defu Chen |
| Affiliation: | 1. Department of Chemistry/Institute of Polymers, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China 2. School of Civil Engineering and Architecture, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China |
| Abstract: | Novel copolynorbornenes bearing pendant sultone groups (designated as P(BN/SulNBOH) and P(BN/SulNBOMe)) have been successfully synthesized via copolymerization of functionalized norbornenes bearing sultones (designated as SulNBOH and SulNBOMe) with 2-butoxymethylene norbornene (BN). The catalyst system showed high catalyst activity (104 gpolymer/molNi·h) and the obtained copolymers have high molecular weight and a narrow molecular weight distribution. Furthermore, the achieved copolymers P(BN/SulNBOH) and P(BN/SulNBOMe) were converted into sulfonated copolymers sP(BN/NBOH) and sP(BN/NBOMe). Both sP(BN/NBOH) and sP(BN/NBOMe) membranes displayed low water uptake, high thermal properties, good mechanical properties, and better proton exchange membranes properties. The proton conductivities measured in the hydrated state at 80?°C ranged from 10?5 to 7.19?×?10?3?S·cm?1. Novel copolynorbornenes bearing pendant sultone groups are synthesized. The achieved copolymers are converted into the sulfonated copolymers. The proton conductivities of the membranes measured in the hydrated state at 80?°C ranged from 10?5 to 7.19?×?10-3?S·cm?1. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |