Hierarchical porous polymer beads prepared by polymerization-induced phase separation and emulsion-template in a microfluidic device

doi:10.1007/s10118-014-1547-1

CORC > 化学研究所 > 中国科学院化学研究所

	Hierarchical porous polymer beads prepared by polymerization-induced phase separation and emulsion-template in a microfluidic device
	Wang, Wei-cai 1,2; Pan, Yan-xiong 1,2; Shi, Kai 1; Peng, Chao 1; Jia, Xiang-ling 1
刊名	CHINESE JOURNAL OF POLYMER SCIENCE
	2014-12-01
卷号	32 期号:12 页码:1646-1654
关键词	Porous Polymer Beads Hierarchical Polymerization-induced Phase Separation Emulsion-template Microfluidic Device
ISSN号	0256-7679
DOI	10.1007/s10118-014-1547-1
英文摘要	Porous polymer beads (PPBs) containing hierarchical bimodal pore structure with gigapores and meso-macropores were prepared by polymerization-induced phase separation (PIPS) and emulsion-template technique in a glass capillary microfluidic device (GCMD). Fabrication procedure involved the preparation of water-in-oil emulsion by emulsifying aqueous solution into the monomer solution that contains porogen. The emulsion was added into the GCMD to fabricate the (water-in-oil)-in-water double emulsion droplets. The flow rate of the carrier continuous phase strongly influenced the formation mechanism and size of droplets. Formation mechanism transformed from dripping to jetting and size of droplets decreased from 550 mu m to 250 mu m with the increase in flow rate of the carrier continuous phase. The prepared droplets were initiated for polymerization by on-line UV-irradiation to form PPBs. The meso-macropores in these beads were generated by PIPS because of the presence of porogen and gigapores obtained from the emulsion-template. The pore morphology and pore size distribution of the PPBs were investigated extensively by scanning electron microscopy and mercury intrusion porosimetry (MIP). New pore morphology was formed at the edge of the beads different from traditional theory because of different osmolarities between the water phase of the emulsion and the carrier continuous phase. The morphology and proportion of bimodal pore structure can be tuned by changing the kind and amount of porogen.
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000344542100008
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/53037]
专题	中国科学院化学研究所
通讯作者	Jia, Xiang-ling
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wei-cai,Pan, Yan-xiong,Shi, Kai,et al. Hierarchical porous polymer beads prepared by polymerization-induced phase separation and emulsion-template in a microfluidic device[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2014,32(12):1646-1654.
APA	Wang, Wei-cai,Pan, Yan-xiong,Shi, Kai,Peng, Chao,&Jia, Xiang-ling.(2014).Hierarchical porous polymer beads prepared by polymerization-induced phase separation and emulsion-template in a microfluidic device.CHINESE JOURNAL OF POLYMER SCIENCE,32(12),1646-1654.
MLA	Wang, Wei-cai,et al."Hierarchical porous polymer beads prepared by polymerization-induced phase separation and emulsion-template in a microfluidic device".CHINESE JOURNAL OF POLYMER SCIENCE 32.12(2014):1646-1654.