Preparation of monodispersed porous polyacrylamide microspheres via phase separation in microchannels

Song Guo; Tong Yao; Chongqing Wang; Changfeng Zeng; Lixiong Zhang

doi:10.1016/j.reactfunctpolym.2015.04.006

Preparation of monodispersed porous polyacrylamide microspheres via phase separation in microchannels

Song Guo, Tong Yao, Chongqing Wang, Changfeng Zeng, Lixiong Zhang

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We report on the formation of polyacrylamide (PAM)/polyethylene glycol (PEG) core/shell droplets in a microchannel via the polymerization-induced phase separation of an acrylamide (AM)/PEG aqueous system. Monodispersed porous PAM microspheres were prepared from the PAM/PEG core/shell droplets, and we examined the effects of experimental parameters on the phase separation process and on the particle size and pore structure of the resulting PAM microspheres. PAM microspheres could be readily obtained with adjustable particle sizes and porosities by altering the PEG and crosslinker contents and by using PEG with different molecular weights. The relation between the swelling value and porosity is correlated.

Original language	English
Pages (from-to)	77-84
Number of pages	8
Journal	Reactive and Functional Polymers
Volume	91-92
DOIs	https://doi.org/10.1016/j.reactfunctpolym.2015.04.006
State	Published - 10 May 2015

Keywords

Microfluidics
Monodispersed
Polymerization-induced phase separation
Porosity
Porous polyacrylamide microspheres

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10.1016/j.reactfunctpolym.2015.04.006

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title = "Preparation of monodispersed porous polyacrylamide microspheres via phase separation in microchannels",

abstract = "We report on the formation of polyacrylamide (PAM)/polyethylene glycol (PEG) core/shell droplets in a microchannel via the polymerization-induced phase separation of an acrylamide (AM)/PEG aqueous system. Monodispersed porous PAM microspheres were prepared from the PAM/PEG core/shell droplets, and we examined the effects of experimental parameters on the phase separation process and on the particle size and pore structure of the resulting PAM microspheres. PAM microspheres could be readily obtained with adjustable particle sizes and porosities by altering the PEG and crosslinker contents and by using PEG with different molecular weights. The relation between the swelling value and porosity is correlated.",

keywords = "Microfluidics, Monodispersed, Polymerization-induced phase separation, Porosity, Porous polyacrylamide microspheres",

author = "Song Guo and Tong Yao and Chongqing Wang and Changfeng Zeng and Lixiong Zhang",

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doi = "10.1016/j.reactfunctpolym.2015.04.006",

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T1 - Preparation of monodispersed porous polyacrylamide microspheres via phase separation in microchannels

AU - Guo, Song

AU - Yao, Tong

AU - Wang, Chongqing

AU - Zeng, Changfeng

AU - Zhang, Lixiong

PY - 2015/5/10

Y1 - 2015/5/10

N2 - We report on the formation of polyacrylamide (PAM)/polyethylene glycol (PEG) core/shell droplets in a microchannel via the polymerization-induced phase separation of an acrylamide (AM)/PEG aqueous system. Monodispersed porous PAM microspheres were prepared from the PAM/PEG core/shell droplets, and we examined the effects of experimental parameters on the phase separation process and on the particle size and pore structure of the resulting PAM microspheres. PAM microspheres could be readily obtained with adjustable particle sizes and porosities by altering the PEG and crosslinker contents and by using PEG with different molecular weights. The relation between the swelling value and porosity is correlated.

AB - We report on the formation of polyacrylamide (PAM)/polyethylene glycol (PEG) core/shell droplets in a microchannel via the polymerization-induced phase separation of an acrylamide (AM)/PEG aqueous system. Monodispersed porous PAM microspheres were prepared from the PAM/PEG core/shell droplets, and we examined the effects of experimental parameters on the phase separation process and on the particle size and pore structure of the resulting PAM microspheres. PAM microspheres could be readily obtained with adjustable particle sizes and porosities by altering the PEG and crosslinker contents and by using PEG with different molecular weights. The relation between the swelling value and porosity is correlated.

KW - Microfluidics

KW - Monodispersed

KW - Polymerization-induced phase separation

KW - Porosity

KW - Porous polyacrylamide microspheres

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U2 - 10.1016/j.reactfunctpolym.2015.04.006

DO - 10.1016/j.reactfunctpolym.2015.04.006

M3 - 文章

AN - SCOPUS:84929073722

SN - 1381-5148

VL - 91-92

SP - 77

EP - 84

JO - Reactive and Functional Polymers

JF - Reactive and Functional Polymers

ER -

Preparation of monodispersed porous polyacrylamide microspheres via phase separation in microchannels

Abstract

Keywords

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