Synthesis and Performance of Poly(ether ether ketone)s with Low Melt Viscosity†

doi:10.7503/cjcu20150566

Abstract

Abstract:

A novel approach was presented on lowering the high processing viscosity of poly(ether ether ketone)s(PEEK). The commercial PEEK and poly(ether ether ether ketone)s-poly(ether ketone)s(PEEEK-PEK) were synthesized via a typical procedure. Compared to PEEK, PEEEK-PEK had the same molar ratio of ether and ketone linkages but in different linkage sequencing. Results of the DSC, DMA, TGA and Stress-strain tests indicated that the two copolymers performed close thermal and mechanical properties. Moreover, the rheological behavior was particularly investigated and it occurred that the melt viscosity of PEEEK-PEK exhibited around 50% lower than that of PEEK according to the dynamic shear rheological tests at the rate of 100 rad/s.

Key words: High performance polymer, Melt viscosity, Poly(ether ether ketone)

CLC Number:

O631

TrendMD:

LI Yunxi, YUE Xigui, JIANG Zhenhua. Synthesis and Performance of Poly(ether ether ketone)s with Low Melt Viscosity^†[J]. Chem. J. Chinese Universities, 2015, 36(11): 2160.

Figures/Tables 3

Table 1 Properties of PEEK and PEEEK-PEK

Sample	η^a/(dL·g^-1)	$T g b$ /℃	$T g c$ /℃	$T m c$ /℃	E'^b/MPa	Visco^d/(Pa·s)	σ^e/MPa	ε^e(%)	E^e/MPa
PEEK	1.09	160	149	330	2341	3306	92	57	2560
PEEEK-PEK	1.11	160	147	328	2444	2481	110	43	2425

Table 1 Properties of PEEK and PEEEK-PEK

Sample	η^a/(dL·g^-1)	$T g b$ /℃	$T g c$ /℃	$T m c$ /℃	E'^b/MPa	Visco^d/(Pa·s)	σ^e/MPa	ε^e(%)	E^e/MPa
PEEK	1.09	160	149	330	2341	3306	92	57	2560
PEEEK-PEK	1.11	160	147	328	2444	2481	110	43	2425

Fig.1 Typical nominal stress-strain curves for PEEK(a) and PEEEK-PEK(b)

Fig.2 Dynamic frequency sweep tests on PEEK(a) and PEEEK-PEK(b)

References 16

[1]	Zhou H., Zhang N., Ma W.J., Zhao C.J., Na H., Chem. Res. Chinese Universities, 2013, 29(4), 811—815
[2]	Chen M., Gibson H. W., Macromolecules, 1996, 29(16), 5502—5504
[3]	Yan P. T., Li W. K., Wang Y. N., Zhu Y., Zhang R. B., Jiang Z. H., Chem. Chinese Uiversities, 2013, 34(7), 1782—1787
	(闫鹏涛, 李文科, 王永鹏, 朱晔, 张海博, 姜振华. 高等学技化学学报, 2013, 34(7), 1782—1787)
[4]	Sun H., Chen R. C., Liu S., Xu G. Z., Chem. Res. Chinese Universities, 2012, 28(3), 353—357
[5]	Texier A., Davis R. M., Lyon K. R., Gungor A., McGrath J. E., Marand H., Riffle J. S., Polymer, 1993, 34(4), 896—906
[6]	Daoust D., Godard P., Devaux J., Legras R., Strazielle C., Polymer, 1994, 35(25), 5498—5503
[7]	Zhou Z., Zhou F.G., Zhang S. L., Mu J. X., Yue X. G., Wang G. B., Chem. Res. Chinese Universities, 2012, 28(5), 907—911
[8]	Zhai T., Di L., Yang D., Appl. Mater. Interfaces, 2013, 5(23), 12499—12509
[9]	Chen R. C., Sun H., Li A., Xu G. Z., Chem. Res. Chinese Universities, 2012, 28(1), 162—165
[10]	Yurchenko M. E., Huang J., Robisson A., McKinley G. H., Hammond P. T., Polymer, 2010, 51(9), 1914—1920
[11]	Hunter R. A., Turner P. D., Rimmer S. J., Mater. Chem., 2001, 11(3), 736—740
[12]	Kricheldorf H. R., Böhme S., Schwarz G., Macromolecules, 2001, 34(26), 8879—8885
[13]	Kricheldorf H. R., Petermann O., Macromolecules, 2001, 34(26), 8841—8846
[14]	Li X., Zhang S., Zhou F., Pang J., Zhang C., Sun D., Mu J., Wang G., Jiang Z., Macromol. Res., 2011, 19(5), 427—435
[15]	Li X., Zhang S., Wang H., Zhang C., Pang J., Mu J., Ma G., Wang G., Jiang Z., Polym. Int., 2011, 60(4), 612
[16]	Mu J. X., Wang G. B., Zhang C. L., Li X. J., Jiang Z. H., Kireev V. V., J. Macromol. Sci. A, 2008, 45(9), 742—747