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Citation: Chen Tianlu, Xia Ping, Guo Qipeng, Li Binyao. EPOXY-TERMINATED PHENOLPHTHALEIN POLYARYL-ETHERKETONE: SYNTHESIS AND CHARACTERIZATION[J]. Chinese Journal of Applied Chemistry, ;1993, 10(1): 39-42. shu

EPOXY-TERMINATED PHENOLPHTHALEIN POLYARYL-ETHERKETONE: SYNTHESIS AND CHARACTERIZATION

1.
Changchun Institute of Applied Chemistry, Academia Sinica, 130022 Changchun

Received Date: 14 December 1991
Available Online: 6 October 1992

Epoxy-terminated phenolphthalein polyaryletherketones (E-PEK) of M_n=1000~8000 were synthesized by reaction of epichhlorohydrin with PEK oligomer having-OK terminal groups prepared by condensation of phenolphthalein (PPH) with 4,4'-dichlorobenzophenone (DCBP) at molar ratios of PPH to DCBP from 1:0.5 to 1:0.9. The E-PEKs were characterized by IR and ¹H NMR spectra,initial glass transtion temperature (T_gi); the melting viscosity and solubility of E-PEK samples were also measured. The E-PEKs were cured with 4, 4'-diaminodiphenylether (DDE) and the glass transition temperatures of the fully erosslinked E-PEK/DDE (T_g∞) were found to be in relation with the initial molecular weight of the oligomer. The T_g∞ values for all samples closslinked were in the range of 183~215℃.
- epoxy-terminated oligomer,
- phenolphthalein,
- polyaryletherketone,
- synthesis
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