Pervaporation properties of EC membrane crosslinked by hyperbranched-polyester acrylate

被引：14

作者：

Luo, Yunjun ^{[1
]}

Xin, Wei ^{[1
]}

Li, Guoping ^{[1
]}

Yang, Yin ^{[1
]}

Liu, Jingru ^{[1
]}

Lv, Yong ^{[1
]}

Jiu, Yongbin ^{[1
]}

机构：

[1] Beijing Inst Technol, Coll Mat Sci & Technol, Beijing 100081, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2007年 / 303卷 / 1-2期

关键词：

pervaporation; benzene/cyclohexane; hyperbranched-polyester; acrylate; ethyl cellulose;

D O I：

10.1016/j.memsci.2007.07.023

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An aliphatic type of hyperbranched-polyester (HBPE) that was synthesized from 2,2-dihydroxymethyl propanyl acid (DMPA) and 1,1,1-trihydroxymethyl propane (TMP) was end-capped with acrylic group, and the photo-polymerizable hyperbranched-polyester (AHBPE) was obtained. These AHBPEs were employed as the macromolecular crosslinking agents to enhance the pervaporation performance of EC membrane for the separation of benzene/cyclohexane mixtures. The effects of the content of AHBPE and benzophenone (BP) as well as the radiating time on the separation factor and the total permeate flux were investigated in detail. The results show that, the performance of EC membranes incorporating AHBPEs of higher generations exhibited much higher flux, with a comparison to the membranes modified by micromolecular crosslinking agent of ethylene glycol dimethacrylate (EGDM). The membrane with the total permeation flux of 42.5 kg mu m m(-2) h(-1) and the separation factor of 6.82 was obtained at the AHBPE and BP content of 40 wt% and 10 wt%, respectively. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：183 / 193

页数：11

共 19 条

[1] Physical and thermal properties of UV curable waterborne polyurethane dispersions incorporating hyperbranched aliphatic polyester of varying generation number [J].

Asif, A ;

Shi, WF ;

Shen, XF ;

Nie, KM .

POLYMER, 2005, 46 (24) :11066-11078

[2]

Brigitte V., 2000, J POLYM SCI A, V38, P2505

[3] Preparation and characterization of dendrimer layers on poly(dimethylsiloxane) films [J].

Cha, BJ ;

Kang, YS ;

Won, J .

MACROMOLECULES, 2001, 34 (19) :6631-6636

[4] Hyperbranched polyimides for gas separation applications. 1. Synthesis and characterization [J].

Fang, JH ;

Kita, H ;

Okamoto, K .

MACROMOLECULES, 2000, 33 (13) :4639-4646

[5]

Feng XS, 1996, J MEMBRANE SCI, V118, P127

[6] UV-curable hyperbranched nanocomposite coatings [J].

Fogelström, L ;

Antoni, P ;

Malmström, E ;

Hult, A .

PROGRESS IN ORGANIC COATINGS, 2006, 55 (03) :284-290

[7] Study on the fractions of thermodynamic function changes for both adsorption and desorption from a liquid-solid system [J].

Geng, XP .

THERMOCHIMICA ACTA, 1998, 308 (1-2) :131-138

[8]

HANSEN CM, 1967, J PAINT TECHNOL, V39, P506

[9] ONE-STEP SYNTHESIS OF HYPERBRANCHED DENDRITIC POLYESTERS [J].

HAWKER, CJ ;

LEE, R ;

FRECHET, JMJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (12) :4583-4588

[10] Pervaporation dehydration of ethanol-water mixtures with chitosan/hydroxyethylcellulose (CS/HEC) composite membranes I. Effect of operating conditions [J].

Jiraratananon, R ;

Chanachai, A ;

Huang, RYM ;

Uttapap, D .

JOURNAL OF MEMBRANE SCIENCE, 2002, 195 (02) :143-151

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