Synthesis and properties of nonlinear optical polymers based on poly(ether imides) for electrooptical devices
β Scribed by Hyung-Jong Lee; Myung-Hyun Lee; Min-Cheol Oh; Seon Gyu Han
- Book ID
- 106002533
- Publisher
- Springer
- Year
- 1999
- Tongue
- English
- Weight
- 233 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0170-0839
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Four bis(ether anhydride)s, 4,4Π-(1,4-phenylenedioxy)diphthalic anhydride (IV), 4,4Π-(2,5-tolylenedioxy)-diphthalic anhydride (Me-IV), 4,4Π-(2-chloro-1,4-phenylenedioxy)diphthalic anhydride (Cl-IV), and 4,4Π-(2,5-biphenylenedioxy)diphthalic anhydride (Ph-IV), were prepared in three steps starting fr
## Abstract Membranes based on poly[2,2β²β(pβoxydiphenylene)β5,5β²βbibenzimidazole] (OPBI) and their sulphonated derivatives (SOPBI) were prepared and first investigated for high temperature proton exchange membrane fuel cells. OPBI and SOPBI membranes with good chemical stability were prepared by ca