Preparation and Properties of Nanocomposites Based on Polyimide and Polyfluorinated Surfactant-pillared Layered Double Hydroxide†

doi:10.7503/cjcu20150443

Abstract

Abstract:

Layered double hydroxide was modified with polyfluorinated surfactant via anion-exchange intercalation procedure. The nature of the interlayer anions, the morphology and the thermal stability of the fluorinated LDH(LDH-FS) were investigated by infrared spectrum, X-ray diffraction and thermogravimetry analysis. The interlayer space was expanded from 0.76 nm to 2.52 nm and the microenvironments with polyfluorinate phase were formed. LDH-FS based polyimide(PI) nanocomposites were prepared by the in situ polymerization and characterized. LDH-FS was well dispersed in the polyimide matrix. The gas barred, mechnical and dielectric properties of the LDH-FS/PI nanocomposites were synthetically effected by the exfoliated inorganic nanolayers and polyfluorocarbon chain.

Key words: Polyfluorinated surfactant, Layered double hydroxide, Polyimide, Nanocomposites

CLC Number:

O633

TrendMD:

GUO Haiquan, MA Xiaoye, JIN Rizhe, KANG Chuanqing, QIU Xuepeng, GAO Lianxun. Preparation and Properties of Nanocomposites Based on Polyimide and Polyfluorinated Surfactant-pillared Layered Double Hydroxide^†[J]. Chem. J. Chinese Universities, 2016, 37(2): 403.

Figures/Tables 11

Scheme 1 Preparation of LDH-FS/PI nanocomposites

Fig.1 XRD patterns of LDH-CO3(a) and LDH-FS(b)

Fig.2 FTIR spectra of LDH-CO3(a), LDH-FS(b) and FS(c)

Fig.3 TGA curves of LDH-CO3(a) and LDH-FS(b)

Fig.4 FTIR spectra of PI(a), 1LDH-FS/PI(b), 5LDH-FS/PI(c), 10LDH-FS/PI(d) and 15LDH-FS/PI(e)

Fig.5 XRD patterns of PI(a), 1LDH-FS/PI(b), 5LDH-FS/PI(c), 10LDH-FS/PI(d) and 15LDH-FS/PI(e)

Fig.6 SEM images of fracture surface from PI(A), 1LDH-FS/PI(B), 5LDH-FS/PI(C) and 15LDH-FS/PI(D)

Fig.7 Variation of O2 transmission rates with mass fraction of LDH-FS in PI

Fig.8 Variations of tensile strength(A), Young’s modulus(B) and elongation at break(C) with mass fraction of LDH-FS in PI

Fig.9 Variations of dielectric constant(A) and dielectric loss(B) with mass fraction of LDH-FS in PI at different frequency

Fig.10 TGA curves of PI(a), 1LDH-FS/PI(b), 5LDH-FS/PI(c), 10LDH-FS/PI(d) and 15LDH-FS/PI(e)

References 17

[1]	Yan D. P., Lu J., Duan X., Scientia Sinica Chimica, 2013, 43(9), 1135—1148
	(闫东鹏, 陆军, 段雪. 中国科学: 化学, 2013, 43(9), 1135—1148)
[2]	Chen H., Zhao X., Gao H., Zhu H. D., Jiang L. H., Ling Q. D., Chem. J. Chinese Universities, 2015, 36(1), 41—47
	(陈鸿, 赵璇, 高慧, 朱海娣, 姜丽红, 凌启淡. 高等学校化学学报, 2015, 36(1), 41—47)
[3]	Hsueh H. B., Chen C. Y., Polymer, 2003, 44, 1151—1161
[4]	Cao T. C., Chen G. M., Guo C. Y., Chem. J. Chinese Universities, 2013, 34(10), 2239—2246
	(曹天池, 陈光明, 郭存悦. 高等学校化学学报, 2013, 34(10), 2239—2246)
[5]	Matusinovic Z., Wilkie C. A., J. Mater. Chem., 2012, 22, 18701—18074
[6]	Schonhals A., Goering H., Costa F. R., Wagenknecht U., Heinrich G., Macromolecules, 2009, 42, 4165—4174
[7]	Chen H., Zhao X., Gao H., Zhu H. D., Jiang L. H., Ling Q. D., Chem. J. Chinese Universities, 2015, 36(1), 41—47
	(陈鸿, 赵璇, 高慧, 朱海娣, 姜丽红, 凌启淡. 高等学校化学学报, 2015, 36(1), 41—47
[8]	Wang Q., O’Hare D., Chem. Rev., 2012, 112, 4124—4155
[9]	Basu D., Das A., Stöckelhuber K. W., Wagenknecht U., Heinrich G., Progress in Polymer Science, 2014, 39, 594—626
[10]	Ding M.X., Polyimide: Chemistry, Relationship Between Structure and Properties and Materials, Science Press, Beijing, 2012, 1—5
	(丁孟贤. 聚酰亚胺:化学、结构与性能的关系及材料, 北京: 科学出版社, 2012, 1—5)
[11]	Liaw D. J., Wang K. L., Huang Y. C., Lee K. R., Lai J. Y., Ha C. S., Prog. Polym. Sci., 2012, 37, 907—974
[12]	Guo H. Q., Yao H. B., Ma X. Y., Qiu X. P., Gao L. X., Acta Polymerica Sinica, 2015, 3, 356—362
	(郭海泉, 姚海波, 马晓野, 邱雪鹏, 高连勋. 高分子学报, 2015, 3, 356—362
[13]	Ding M. X., Prog. Polym. Sci., 2007, 32, 623—668
[14]	Kutlu B., Leuteritz A., Boldt R., Jehnichen D., Heinrich G., Chemical Engineering Journal, 2014, 43, 394—404
[15]	Pang X. J., Liu Y., Chen L., Quan Z. L., Chem. J. Chinese Universities, 2015, 36(10), 1933—1938
	(庞秀江, 刘源, 陈利, 金贞兰. 高等学校化学学报, 2015, 36(10), 1933—1938)
[16]	Xi X., Zhen W. J., Bian S. Z., Chem. J. Chinese Universities, 2015, 36(3), 559—567
	(席习, 甄卫军, 卞生珍. 高等学校化学学报, 2015, 36(3), 559—567)
[17]	Ahn J., Han M., Ha C. S., Polym. Int., 2011, 60, 271—278