PDLA/PLLA ultrafiltration membrane with excellent permeability, rejection and fouling resistance via stereocomplexation

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	PDLA/PLLA ultrafiltration membrane with excellent permeability, rejection and fouling resistance via stereocomplexation
	Xiong, Zhu; Zhong, Yun; Lin, Haibo; Liu, Fu; Li, Tiantian; Li, Jinglong
刊名	JOURNAL OF MEMBRANE SCIENCE
	2017
卷号	533 页码:103-111
ISSN号	0376-7388
英文摘要	In this work, a feasible and efficient approach was developed to produce Poly(lactic acid (PLA) ultrafiltration membrane with both high permeability and high rejection simultaneously. Poly(L-lactic acid)/Poly(D-lactic acid) (PDLA/PLLA) stereocomplex crystallites were thought to play the critical role different from the traditional pore forming agents or hydrophilic modification. The membrane morphology of the stereocomplex PDLA/PLLA membrane with high porosity and thin skin layer was observed by SEM. The addition of PDLA resulted in the thermodynamic enhancement for phase separation of PLLA casting solution as demonstrated by a rotational rheometer. The PDLA/PLLA stereocomplex crystallization behavior was investigated by DSC and XRD. With increasing the stereocomplex crystallites, the water permeability of PLA membrane significantly increased from similar to 482 L/m(2).h to similar to 3325 L/m(2) h, while with small loss in degree of rejection. Furthermore, the stereocomplex PLA membrane demonstrated the excellent separation efficiency for nano-TiO2 and ink dispersion. Besides, the stereocomplex PLA membrane exhibited outstanding anti-protein fouling properties through the static and dynamic BSA antifouling tests. All results demonstrated that the stereocomplexation can effectively tune the pore size evolution and control the permeability, selectivity and fouling resistance.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13761]
专题	2017专题
推荐引用方式 GB/T 7714	Xiong, Zhu,Zhong, Yun,Lin, Haibo,et al. PDLA/PLLA ultrafiltration membrane with excellent permeability, rejection and fouling resistance via stereocomplexation[J]. JOURNAL OF MEMBRANE SCIENCE,2017,533:103-111.
APA	Xiong, Zhu,Zhong, Yun,Lin, Haibo,Liu, Fu,Li, Tiantian,&Li, Jinglong.(2017).PDLA/PLLA ultrafiltration membrane with excellent permeability, rejection and fouling resistance via stereocomplexation.JOURNAL OF MEMBRANE SCIENCE,533,103-111.
MLA	Xiong, Zhu,et al."PDLA/PLLA ultrafiltration membrane with excellent permeability, rejection and fouling resistance via stereocomplexation".JOURNAL OF MEMBRANE SCIENCE 533(2017):103-111.