Preparation of Hollow/Porous Crosslinkable Hyperbranched Polyaryletherketone Microspheres†

doi:10.7503/cjcu20180232

Abstract

Abstract:

Amino-terminated hyperbranched polyaryletherketone(NH₂-HPAEK) was synthesized. Then the hollow/porous microspheres with NH₂-HPAEK as core and polyvinyl alcohol(PVA) as shell were prepared by the solvent-volatilization method, in which PVA aqueous solution was used as the continuous phase, and NH₂-HPAEK tetrahydrofuran solution was used as disperse phase. Finally, the structure of the hollow/porous microspheres was fixed by the crosslinking reaction between the amino groups of NH₂-HPAEK and aldehyde groups of glyoxal. The crosslinked hollow/porous microspheres have structural stability and are suitable for use in harsh environments.

Key words: Hyperbranched polyaryletherketone, Hollow/porous microsphere, Crosslinked reaction

CLC Number:

O631

TrendMD:

QIN Shi, JING Liwei, ZHANG Chunfeng, WANG Guibin, ZHANG Shuling. Preparation of Hollow/Porous Crosslinkable Hyperbranched Polyaryletherketone Microspheres^†[J]. Chem. J. Chinese Universities, 2018, 39(11): 2581.

Figures/Tables 5

Scheme 1 Synthetic routes of NH2-HPAEK

Fig.1 IR spectrum of NH2-HPAEK(A) and 1H NMR spectra(B) of F-HPAEK(a) and NH2-HPAEK(b)

Fig.2 TEM images of micelles based on NH2-HPAEK tetrahydrofuran solution and PVA aqueous solutionc(THF)/(mg·mL-1): (A) 10.0; (B) 20.0.

Scheme 2 Schematic diagram of the interaction between NH2-HPAEK and PVA before and after crosslinking with glyoxal

Fig.3 TEM images of NH2-HPAEK/PVA hollow/porous microsphere after crosslinking without(A) and with the treatment of DMSO(B)

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