Affiliation:
1. Beijing Institute of Graphic Communication
2. South China University of Technology
Abstract
Novel poly(aryl ether quinoxaline)s (PEQs) were prepared via a two-step procedure. First, poly (ether benzil) (PEB) was synthesized by the polycondensation of 4,4’-difluorobenzil and 4,4’-isopropylidenediphenol.Then, PEB was reacted with 1,2-diaminobenzene and 4,4'-oxydibenzene-1,2-diamine to give the PEQs. The molecular weight of the PEQs could be adjusted easily by varying the molar ratio of 1,2-diaminobenzene to 4,4'-oxydibenzene-1,2-diamine. The PEQs exhibited good solubility in common organic solvents such as NMP, DMAc, DMF, cyclohexanone and chloroform. In addition, the PEQs also had high glass transition (Tg) temperatures and good thermal properties, with an initial thermal decomposition temperature above 475 oC and glass transition temperatures above 210 oC. They also exhibited excellent resistance to strong acid and alkali.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Champion RD, Cheng KF, Pai CL, Chen WC, Jenekhe SA. Macromolecular Rapid Communication, Vol. 26 (2005)pp.35-40.
2. Kozlov GV, Dolbin IV, Zaikov GE. J Appl Polym Sci, Vol. 99 (2006)pp.74-77.
3. Huo LJ, Tan ZA, Zhou Y, Zhou EJ, Han MF, Li YF. Macromol Chem Phys, Vol. 208 (2007)p.: 1294-1300.
4. Jung SH, Kim DY, Cho HN, Suh DH. J Polym Sci Part A: Polym Chem, Vol. 44 (2006)pp.1189-1198.
5. Baek JB, Harris FW. J Polym Sci Part A: Polym Chem, Vol. 43 (2005)pp.78-91.