Synthesis and Characterization of Surfactant-Free PDEA/PMAA of IPN Nanogel

Abstract:

Based on the hydrogen bonding between MAA and PDEA, the synthesis of surfactant-free PDEA/PMAA interpenetrating (IPN) nanogels was studied in ultrapure water with N, N-methylene acrylamide (BIS) as a crosslinker, ammonium peroxodisulfate (APS) as an initiator, N,N,N',N'-Tetramethylethylenediamine (TEMED) as an accelerator. First, poly (N, N-diethyl acrylamide) (PDEA) nanogels were synthesized using emulsion precipitation polymerization. As MAA was polymerized in the aqueous dispersion of PDEA nanogels as seeds, PDEA nanogels got interpenetrated with poly (methacrylic acid) (PMAA) due to the effect of the hydrogen bonding between PDEA and PMAA. The chemical structure of the PDEA/PMAA nanogels was studied with Fourier transform infrared (FTIR) spectroscopy. The nanogels morphology was characterized with transmission electron microscopy (TEM) and atomic force microscopy (AFM). And the volume phase transition behaviors and swelling properties were studied with dynamic light scattering (DLS). The experimental results show that the interpenetrating nanogels were very sensitive to temperature. As the amount of MAA increased, the volume of the neutralized PDEA/PMAA nanogels changed less above phase transition temperature and was finally no change. The temperature responsive PDEA/PMAA nanogels will promise to have significant influence on fundamental studies and real applications.

• Periodical: Materials Science Forum (Volume 787)
• Pages: 395-400
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.787.395
• Online since: April 2014
• Authors: Peng Wang, Jun Li Zhang, Xue Ting Li, Qian Wu, Di Zhao, Dong An, Xi Hua Lu*, Gao Qiu
• Keywords: Emulsifier-Free Emulsion Polymerization, IPN, MAA, PDEA

References

[1] X. Lu, Z. Hu, J. Schwartz, Phase transition behavior of hydroxypropylcellulose under interpolymer complexation with poly (acrylic acid), Macromolecules. 35 (2002) 9164-9168.

DOI: 10.1021/ma0208842

[2] B.H. Tan, P. Ravi, L.N. Tan, K.C. Tam, Synthesis and aqueous solution properties of sterically stabilized pH-responsive polyampholyte microgels, Journal of Colloid and Interface Science. 309 (2007) 453-463.

DOI: 10.1016/j.jcis.2007.01.019

[3] J.-Y. Sun, X. Zhao, W.R.K. Illeperuma, O. Chaudhuri, K.H. Oh, D.J. Mooney, J.J. Vlassak, Z. Suo, Highly stretchable and tough hydrogels, Nature. 489 (2012) 133-136.

DOI: 10.1038/nature11409

[4] T. T, N. I, S. ST, U.-N. S., Collapse of gels in an electric field, Science. 218 (1982) 467-469.

[5] R. Akashi, H. Tsutsui, A. Komura, Polymer gel light-modulation materials lmitating pigment cells, Advanced Materials. 14 part 24 (2002) 1808-1811.

DOI: 10.1002/adma.200290005

[6] Y. Qiu, K. Park, Environment-sensitive hydrogels for drug delivery, Advanced Drug Delivery Reviews, 64 (2012) 49-60.

DOI: 10.1016/j.addr.2012.09.024

[7] J.H. Holtz, S.A. Asher, Polymerized colloidal crystal hydrogel films as intelligent chemical sensing materials, Nature. 389 (1997) 829-832.

DOI: 10.1038/39834

[8] X. Feng, L. Chen, J. Dong, B. Li, Fast responsive temperature-sensitive hydrogel and its application on bioseparation, Acta Scientiarum Naturalium Universitatis Nankaiensis. 38 (2005) 34-40.

[9] J. MILLAR, Interpenetrating polymer networks. styrene-divinylbenzene copolymers with two and three interpenetrating networks, and their sulphonates, Journal of the Chemical Society. (1960) 1311-1317

DOI: 10.1039/jr9600001311

[10] X. Zhang, S. Monge, M. In, O. Giani, J.-J. Robin, Thermo- and pH-sensitive aggregation behavior of PDEAm-b-P(l-lysine) double hydrophilic block copolymers in aqueous solution, Soft Matter. 9 (2013): 1301-1309.

DOI: 10.1039/c2sm27051j

[11] F. Bian, M. Liu, Complexation between poly(N,N-diethylacry- lamide) and poly(acrylic acid) in aqueous solution, European Polymer Journal. 39 (2003): 1867-1874.

DOI: 10.1016/s0014-3057(03)00093-4

[12] Z. Hu, X. Xia, Hydrogel nanoparticle dispersion with inverse thermoreversible gelation, Advanced Materials, 16 (2004): 305-309.

DOI: 10.1002/adma.200305560