Hostname: page-component-54dcc4c588-br6xx Total loading time: 0 Render date: 2025-10-01T17:47:42.235Z Has data issue: false hasContentIssue false
  • English
  • Français

Preparation and characterization of thermosensitive core/shell microgels with carbon microsphere cores

Published online by Cambridge University Press:  12 May 2014

Lin Chen ,
Longfei Li ,
Weifeng Liu ,
Yongzhen Yang  and
Xuguang Liu
Lin Chen
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Longfei Li*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Weifeng Liu*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Yongzhen Yang*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and Research Center on Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
Xuguang Liu*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
*
b) e-mail: yyztyut@126.com
a) Address all correspondence to these authors. e-mail: liuxuguang@tyut.edu.cn
Get access

Abstract

A novel thermosensitive core/shell microgel with carbon microspheres (CMSs) cores was prepared by three steps. First, oxidized-carbon microspheres were obtained by mixed-acid oxidization. Second, the silane agent of 3-(trimethoxysilyl)-propyl methacrylate was used to functionalize the oxidized-carbon microspheres so as to generate the vinyl groups on the microspheres. Thereafter, the as-synthesized particles were used as seeds in the precipitation polymerization of N-isopropylacrylamide to introduce a thermosensitive polymer microgel shell onto the surfaces of the silanized-CMSs in the presence of an initiator and a crosslinker. The morphology and thermosensitive properties of the composite microspheres were characterized by field emission scanning electron microscopy, transmission electron microscopy, Fourier transformation infrared spectroscopy, thermogravimetry, and dynamic light scattering. Results indicate that the thickness of polymer layer could be adjusted by the crosslinking agent's concentration. The composite microgels had a low critical solution temperature at about 30 °C and exhibited strong thermosensitivity. The controlled release of a drug molecule (a model drug, acetosalicylic acid) was also investigated.

Keywords

core/shellchemical vapor depositionpolymerization

Information

Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 10 , 28 May 2014 , pp. 1153 - 1161
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

Karg, M., Pastoriza-Santos, I., Liz-Marzan, L.M., and Hellweg, T.: A versatile approach for the preparation of thermosensitive PNIPAM core-shell microgels with nanoparticles cores. Chemphyschem 7, 2298 (2006).CrossRefGoogle Scholar
Zhang, L.: Thermally-responsive core-shell particles. Dissertation, Lehigh University, 2007.Google Scholar
Hellweg, T.: Responsive core-shell microgels: Synthesis, characterization and possible applications. J. Polym. Sci., Part B: Polym. Phys. 51, 1073 (2013).CrossRefGoogle Scholar
Dai, Y.L., Ma, P.A., and Cheng, Z.Y.: Up-conversion cell imaging and pH induced thermally controlled drug release from NaYF4:Yb3+/Er3+/hydrogel core-shell hybrid microspheres. ACS Nano 4, 3327 (2012).CrossRefGoogle Scholar
Liu, C.Y., Guo, J., and Yang, W.L.: Magnetic mesoporous silica microspheres with thermo-sensitive polymer shell for controlled drug release. J. Mater. Chem. 19, 4764 (2009).CrossRefGoogle Scholar
Lu, Y., Proch, S., and Schrinner, M.: Thermosensitive core-shell microgel as a “nanoreactor” for catalytic active metal nanoparticles. J. Mater. Chem. 19, 3955 (2009).CrossRefGoogle Scholar
Wu, S., Kaiser, J., Drechsler, M., Ballauff, M., and Lu, Y.: Thermosensitive Au-PNIPAM yolk-shell particles as “nanoreactors” with tunable optical properties. Colloid Polym. Sci. 291, 231 (2013).CrossRefGoogle Scholar
Lu, Y. and Ballauff, M.: Thermosensitive core–shell microgels: From colloidal model systems to nanoreactors. Prog. Polym. Sci. 36, 767 (2011).CrossRefGoogle Scholar
Deng, Y.H., Yang, W.L., Wang, C.C., and Fu, S.K.: A novel approach for preparation of thermoresponsive polymer magnetic microspheres with core-shell structure. Adv. Mater. 15, 20 (2003).CrossRefGoogle Scholar
Wei, Q.S., Zhou, W.B., Ji, J., and Shen, J.C.: Thermosensitive nanocables prepared by surface-initiated atom transfer radical polymerization. Nanoscale Res. Lett. 4, 84 (2009).CrossRefGoogle ScholarPubMed
Rahman, M.M., Chehimi, M.M., Fessi, H., and Elaissari, A.: Highly temperature responsive core-shell magnetic particles: Synthesis, characterization and colloidal properties. J. Colloid Interface Sci. 360, 556 (2011).CrossRefGoogle ScholarPubMed
Shamim, N., Hong, L., Hidajat, K., and Uddin, M.S.: Thermosensitive polymer (N-isopropylacrylamide) coated nanomagnetic particles: Preparation and characterization. Colloids Surf. B 55, 51 (2007).CrossRefGoogle ScholarPubMed
Facundo, I.A., Soria, M.J., and Rosales, M.G.: Synthesis and characterization of thermosensitive core–shell polymeric nanoparticles. Polym. Bull. 67, 985 (2011).CrossRefGoogle Scholar
Naeem, H., Farooqi, Z.H., Shah, L.A., and Siddiq, M.: Synthesis and characterization of p(NIPAM-AA-AAm) microgels for tuning of optical properties of silver nanoparticles. J. Polym. Res. 19, 9950 (2012).CrossRefGoogle Scholar
Koniger, A., Plack, N., Kohler, W., Siebenburger, M., and Ballauff, M.: Thermophoresis of thermoresponsive polystyrene poly(N-isopropylacrylamide) core-shell particles. Soft Matter 9, 1418 (2013).CrossRefGoogle Scholar
Lee, C., Lin, M.L., Wang, Y., and Chiu, W.Y.: Synthesis and characteristics of poly(N-isopropylacrylamide-comethacrylic acid)/Fe3O4 thermosensitive magnetic composite hollow latex particles. J. Polym. Sci., Part A: Polym. Chem. 50, 2626 (2012).CrossRefGoogle Scholar
Macková, H., Horák, D., Petrovský, E., and Kovářová, J.: Magnetic hollow poly(N-iso-propylacrylamide-co-N,N-methylenebisacrylamide-co-glycidyl acrylate) particles prepared by inverse emulsion polymerization. Colloid Polym. Sci. 291, 205 (2013).CrossRefGoogle Scholar
Li, T., Shen, J.F., Li, N., and Ye, M.X.: Facile and novel hydrothermal preparation of functionalised carbon microspheres from glucose by using graphene sheets as a substrate. Mater. Lett. 89, 202 (2012).CrossRefGoogle Scholar
Yang, Y.Z., Song, J.J., Li, Y., Liu, X.G., and Xu, B.S.: Synthesis and optical property of P3HT/carbon microsphere composite film. J. Mater. Res. 28, 998 (2013).CrossRefGoogle Scholar
Yang, Y.Z., Liu, X.G., Guo, M.C., Li, S., Liu, W.F., and Xu, B.S.: Molecularly imprinted polymer on carbon microsphere surfaces for adsorbing dibenzothiophene. Colloids Surf., A 377, 379 (2011).CrossRefGoogle Scholar
Liu, W.F., Zhao, H.J., Yang, Y.Z., Liu, X.G., and Xu, B.S.: Reactive carbon microspheres prepared by surface-grafting 4-(chloromethyl) phenyltrimethoxysilane for preparing molecularly imprinted polymer. Appl. Surf. Sci. 277, 146 (2013).CrossRefGoogle Scholar
Yang, Y.Z., Liu, X.G., Guo, M.C., and Xu, B.S.: Deoiled asphalt as carbon source for preparation of various carbon materials by chemical vapor deposition. Fuel Process. Technol. 87, 919 (2006).Google Scholar
Zhang, B.L., Zhang, H.P., and Fan, X.L.: Preparation of thermoresponsive Fe3O4/P(acrylic acid-methyl methacrylate-N-isopropylacrylamide) magnetic composite microspheres with controlled shell thickness and its releasing property for phenolphthalein. J. Colloid Interface Sci. 398, 51 (2013).CrossRefGoogle ScholarPubMed
Nabzar, L., Duracher, D., Elaissari, A., Chauveteau, G., and Pichot, C.: Properties and colloidal stability of cationic amino-containing N-isopropylacrylamide styrene copolymer particles bearing different shell structures. Langmuir 14, 5062 (1998).CrossRefGoogle Scholar
Xue, S.W., Hoffman, A.S., and Yager, P.: Synthesis and characterization of thermally reversible macroporous poly(N-isopropylacrylamide) hydrogels. J. Polym. Sci., Part A: Polym. Chem. 30, 2121 (1992).Google Scholar
Lu, Y., Mei, Y., Drechsler, M., and Ballauff, M.: Thermosensitive core–shell particles as carriers for Ag nanoparticles: Modulating the catalytic activity by a phase transition in networks. Angew. Chem. Int. Ed. 45, 813 (2006).CrossRefGoogle ScholarPubMed
Vera, C.O., Bravo, J.M.C., Medina, A.S., and Claverie, A.L.: Effect of crosslinkers on size and temperature sensitivity of poly(N-isopropylacrylamide) microgels. Polym. Bull. 70, 653 (2013).CrossRefGoogle Scholar
Supplementary material: File

Chen Supplementary Material

Supplementary Material

Download Chen Supplementary Material(File)
File 29.7 KB
Supplementary material: Image

Chen Supplementary Material

Figure S1

Download Chen Supplementary Material(Image)
Image 1.2 MB
Supplementary material: Image

Chen Supplementary Material

Figure S1a

Download Chen Supplementary Material(Image)
Image 1.2 MB
Supplementary material: Image

Chen Supplementary Material

Figure S1b

Download Chen Supplementary Material(Image)
Image 1.2 MB
Supplementary material: Image

Chen Supplementary Material

Figure S1c

Download Chen Supplementary Material(Image)
Image 1.2 MB