Here novel biphenol-based wholly aromatic poly(arylene ether sulfone)s containing up to two pendant sulfonate groups per repeat unit were prepared by direct aromatic nucleophilic substitution polycondensation of disodium 3,3'disulfonate-4,4'-dichlorodiphenylsulfone, 4,4'dichlorodiphenylsulfone and 4
NIST rating system to assess fuel cell technologies
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 82 KB
- Volume
- 2006
- Category
- Article
- ISSN
- 1464-2859
No coin nor oath required. For personal study only.
โฆ Synopsis
The repeat equipment sale to the US Navy is through FCE's distributor, LOGANEnergy, which will serve as a prime contractor overseeing installation and operation of the power plant. The latest 250 kW DFC unit is in addition to the original order of 500 kWe announced last fall [FCB, December 2005], with all three units scheduled for installation this summer.
๐ SIMILAR VOLUMES
Ahstrad-Usmg a systems model of the petrochemical mdustry It IS shown that new petrochemlcat processes are more likely candidates for success If their mtroductton would result In better resource use by the Industry as a whole This pnnctple IS then used to estimate the relative probabdkty of success