Pervaporation properties of EC membrane crosslinked by hyperbranched-polyester acrylate

Yunjun Luo; Wei Xin; Guoping Li; Yin Yang; Jingru Liu; Yong Lv; Yongbin Jiu

doi:10.1016/j.memsci.2007.07.023

Pervaporation properties of EC membrane crosslinked by hyperbranched-polyester acrylate

Yunjun Luo^*, Wei Xin, Guoping Li, Yin Yang, Jingru Liu, Yong Lv, Yongbin Jiu

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

19 Citations (Scopus)

Abstract

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 μm 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.

Original language	English
Pages (from-to)	183-193
Number of pages	11
Journal	Journal of Membrane Science
Volume	303
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2007.07.023
Publication status	Published - 15 Oct 2007

Keywords

Acrylate
Benzene/cyclohexane
Ethyl cellulose
Hyperbranched-polyester
Pervaporation

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10.1016/j.memsci.2007.07.023

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title = "Pervaporation properties of EC membrane crosslinked by hyperbranched-polyester acrylate",

abstract = "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 μm 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.",

keywords = "Acrylate, Benzene/cyclohexane, Ethyl cellulose, Hyperbranched-polyester, Pervaporation",

author = "Yunjun Luo and Wei Xin and Guoping Li and Yin Yang and Jingru Liu and Yong Lv and Yongbin Jiu",

year = "2007",

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doi = "10.1016/j.memsci.2007.07.023",

language = "English",

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T1 - Pervaporation properties of EC membrane crosslinked by hyperbranched-polyester acrylate

AU - Luo, Yunjun

AU - Xin, Wei

AU - Li, Guoping

AU - Yang, Yin

AU - Liu, Jingru

AU - Lv, Yong

AU - Jiu, Yongbin

PY - 2007/10/15

Y1 - 2007/10/15

N2 - 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 μm 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.

AB - 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 μm 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.

KW - Acrylate

KW - Benzene/cyclohexane

KW - Ethyl cellulose

KW - Hyperbranched-polyester

KW - Pervaporation

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Pervaporation properties of EC membrane crosslinked by hyperbranched-polyester acrylate

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