.png){kind=icon}
返回
Sulphonated poly(ether ether ketone): Synthesis and characterisation
.png){kind=icon}
PRE
AI
DOI：10.1007/s10853-005-6300-2.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The sulphonation of commercially available PEEK in powder form (Gatone(TM), Gharda Chemicals Limited, India) was carried out using conc. H2SO4 under different reaction conditions. The duration of reaction was varied from 3-5 h, polymer concentration 4-10% (w/v) and temperature 35-50degreesC. Structural characterisation of sulphonated polymers was done by elemental analysis, FT-IR and H-1-NMR spectroscopy. The degree of sulphonation as calculated from H-1-NMR and elemental analysis (S-content) was found to be in the range of similar to50-80%. Multistep mass loss was observed in thermogravimetric traces (recorded in N-2 atmosphere). The first step (50-225 +/- 25degreesC) was due to loss of moisture (1-10%) and second step (250-425 +/- 25degreesC) has been attributed to volatilization of SO3 from the sulphonic group. The backbone degradation takes place above 450degreesC. The mechanical properties and proton conductivities of various sulphonated samples was also evaluated. (C) 2005 Springer Science + Business Media, Inc.
Keyword:
CONCENTRATED SULFURIC-ACID
FUEL-CELL APPLICATIONS
PEEK SULFONATION
MEMBRANES
TEMPERATURE
KINETICS
POLYMER
期刊
IF:
3.9
论文数:
3.2W
被引数:
7.2W
机构
暂无机构信息
引用论文
.png){kind=icon}
MOF-derived carbonaceous materials enriched with nitrogen: Preparation and applications in adsorption and catalysis富含氮的MOF衍生碳质材料的制备及其在吸附和催化中的应用
PREAI
分享收藏分享收藏Synthesis and characterization of sulfonated poly(ether ether ketone) for proton exchange membranes
OAAI
OAAI分享收藏分享收藏
查看更多内容