Fabrication of Oil/water separation membrane using Ionic cross-linked copolymer deposited via Initiated Chemical Vapor Deposition (iCVD) = 화학 기상 증착법을 이용한 이온 가교 공중합체의 합성과 물기름 분리막에의 응용

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 6
  • Download : 0
Recently, oil/water separation has been growing widely in the spotlight because of frequent oil-spill accidents in recent years that are considered as disasters could threaten environment we live in. What is worse, it requires high cost to refine industrial oily wastewater. Therefore, it is in great need to research oil/water separation techniques to preserve the environment at low cost. Membrane-based methods are easy to scale-up and energy-efficient. In addition, they provide consistent permeate quality with high selectivity and efficiency because they can be readily used to separate continuous mixture streams. In this perspective, we present the highly-efficient oil/water separation membrane which is coated with the underwater oleophobic copolymer. The ionic cross-linked poly (4-vinyl benzyl chloride-co-2-(dimethyl amino) ethyl methacrylate) (p (VBC-co-DMAEMA)) was deposited onto stainless steel meshes via initial chemical vapor deposition (iCVD) process. The monomer DMAEMA and VBC were selected as co-monomers to render the water absorbing ability and ability to keep water layer to block oils not to pass through the membrane. Due to the formation of ionic cross-linking between amine group and halocarbon, durability and solvent resistivity were guaranteed. Using the p (VBC-co-DMAEMA) coated membrane, we obtained high flux over $230,000 L/m^2h$ and high separation efficiency up to 99.8%. Furthermore, high solvent resistivity which is important factor for a recycling of a membrane was achieved. The membrane we presented here can be applied for the surface modification of chemically stable and large scale oil/water separation membrane.
Advisors
Im, Sung Gapresearcher임성갑researcher
Description
한국과학기술원 :생명화학공학과,
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2016.2,[1책 :]

Keywords

initiated chemical vapor deposition (iCVD)▼aunderwater oleophobicity▼acopolymer▼aionic cross-linking▼aoil/water separation; initiated chemical vapor deposition (iCVD)▼a공중합체▼a이온 가교▼aunderwater oleophobicity▼a물/기름 분리

URI
http://hdl.handle.net/10203/266378
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=849884&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0