TY - JOUR
T1 - Continuous Two-Step Synthesis of PS@HMEM Core-Shell Nanoparticles via Emulsion Polymerization in Microreactors
AU - Zhang, Yuhua
AU - Zhang, Ziyu
AU - Tian, Yang
AU - Fu, Zhinan
AU - Hua, Chen
AU - Li, Li
AU - Zhao, Fang
AU - Guo, Xuhong
N1 - Publisher Copyright:
© 2023 American Chemical Society
PY - 2023/12/13
Y1 - 2023/12/13
N2 - Spherical polyelectrolyte brushes (SPBs) are widely applied in protein controllable adsorption, nanocatalysis, and surface modification, while the polystyrene (PS) nanoparticles covered with well-distributed photoinitiator 2-[p-(2-hydroxy-2-methylpropiopenone)]-ethylene glycol methacrylate (HMEM) shells (PS@HMEM) are of critical importance to synthesize SPBs by photoemulsion polymerization. In this paper, a two-step continuous flow strategy consisting of emulsion polymerization of PS nanoparticles and a coating of HMEM was rationally designed for the construction of PS@HMEM core-shell nanoparticles in a microreactor. The structure of PS@HMEM core-shell nanoparticles was characterized by Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), and transmission electron microscope (TEM). The electron paramagnetic resonance (EPR) technique was employed to estimate the grafted amount of HMEM, and it was verified that feeding through a single or two streams had a significant advantage for the optimization of the “starved condition.” This work provided a new strategy for synthesizing PS@HMEM core-shell polymer nanoparticles and showed great potential for the construction of other functional nanoparticles.
AB - Spherical polyelectrolyte brushes (SPBs) are widely applied in protein controllable adsorption, nanocatalysis, and surface modification, while the polystyrene (PS) nanoparticles covered with well-distributed photoinitiator 2-[p-(2-hydroxy-2-methylpropiopenone)]-ethylene glycol methacrylate (HMEM) shells (PS@HMEM) are of critical importance to synthesize SPBs by photoemulsion polymerization. In this paper, a two-step continuous flow strategy consisting of emulsion polymerization of PS nanoparticles and a coating of HMEM was rationally designed for the construction of PS@HMEM core-shell nanoparticles in a microreactor. The structure of PS@HMEM core-shell nanoparticles was characterized by Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), and transmission electron microscope (TEM). The electron paramagnetic resonance (EPR) technique was employed to estimate the grafted amount of HMEM, and it was verified that feeding through a single or two streams had a significant advantage for the optimization of the “starved condition.” This work provided a new strategy for synthesizing PS@HMEM core-shell polymer nanoparticles and showed great potential for the construction of other functional nanoparticles.
UR - https://www.scopus.com/pages/publications/85179618391
U2 - 10.1021/acs.iecr.3c02661
DO - 10.1021/acs.iecr.3c02661
M3 - 文章
AN - SCOPUS:85179618391
SN - 0888-5885
VL - 62
SP - 21078
EP - 21086
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 49
ER -