NDLI: Synthesis and characterizatoin of polymers having fluorenone derivatives

Content Provider	IEEE Xplore Digital Library
Author	Jaeho Sim Ogino, K. Sato, H.
Copyright Year	1994
Description	Author affiliation: Tokyo University of Agriculture and Technology (Jaeho Sim)
Abstract	Summary form only given. It is well known that fluorenone derivatives have good electron transport ability due to low LUMO. However, low molecular weight compounds have poor mechanical properties and they easily crystallize and decrease the electron transport ability. We have prepared a new polymer having fluorenone units on the side chain- poly(4-vinylbenzyl 9-dicyanomethylenefluorene-4-carboxylate) and measured electrical porperties. The momomer was prepared from 9-dicyanomethylenefluorene-4-carboxylic acid and p-chloromethyl styene, and was polymerized by conventional radical polymerization in solution. Polymer was obtained with 61% yield and as a yellow powder. The polymer was soluble in organic solvent such as THF, chloroform and methylchloride. The number average molecular weight was determined to be 8,200 by GPC using a calibration curve of standard polystylene. The structures of the resulting polymer were confirmed by /sup 1/H-, /sup 13/C-NMR and IR spectra. Polymer in THF solution showed a UV absorption maximum(/spl lambda/max) at 351.25nm. The polymer film showed two reversible redox potentials at -0.51V,-1.04V(oxidation) and -0.62V,-1.15V(reduction). Further detailed studies will be presented at the poster session.
Starting Page	304
Ending Page	304
File Size	85238
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.835340
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solvents Crystallization Crystalline materials Systems engineering and theory Oxidation Agriculture Mechanical factors Agricultural engineering Polymers Electrons
Content Type	Text
Resource Type	Article

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