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  1. Improvement in oil absorbency by using modified carbon nanotubes in preparation of oil sorbents
Improvement in oil absorbency by using modified carbon nanotubes in preparation of oil sorbents
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Improvement in oil absorbency by using modified carbon nanotubes in preparation of oil sorbents

Pourjavadi, A

Improvement in oil absorbency by using modified carbon nanotubes in preparation of oil sorbents

Pourjavadi, A ; Sharif University of Technology | 2013

1396 Viewed
  1. Type of Document: Article
  2. DOI: 10.1002/adv.21332
  3. Publisher: 2013
  4. Abstract:
  5. This article reports the first oil-absorbent cross-linked copolymer consisting of modified multiwalled carbon nanotube (MWCNT) and showing high oil absorbency. Also, to investigate and evaluate the effective parameters on oil absorbency, cross-linked dodecyl methacrylate (DDMA)-diphenylacrylamide (DPAA) and DDMA-butyl acrylate (BA) copolymers were synthesized. DDMA was copolymerized with different mol% of DPAA or BA and cross-linked using azobisisobutyronitrile as the initiator and various weight percentages of 1,4-butandiol dimethacrylate, methylene bisacrylamide, or vinyl group-modified MWCNT cross-linkers. The effects of monomer feed composition, cross-linker concentration, and the hydrophobicity of the copolymer units on swelling properties of the cross-linked copolymers were studied through the oil-absorbency tests. It was found that in the reactions used vinyl group-modified MWCNTs act as cross-linking agents for the free radical polymerization, carbon nanotubes (CNT) played the other roles, that is, as a comonomer and an adsorbent. The oil absorbents containing CNTs showed the highest oil absorbency (toluene, 42.6 g; crude oil, 36.0 g/g oil absorbent). Therefore, CNT-based oil absorbent can be introduced as a promising candidate for environmental protection and oil recovery
  6. Keywords:
  7. Azobisisobutyronitrile ; Oil absorbencies ; Carbon nanotubes (CNT) ; Co-monomer ; Cross linking agents ; Cross-linkers ; Crosslinker ; Dimethacrylates ; Dodecyl methacrylate ; Effective parameters ; Feed compositions ; Methylene bisacrylamide ; Modified carbon ; Modified multiwalled carbon nanotube (MWCNT) ; Modified MWCNT ; Networks ; Oil absorbent ; Oil recoveries ; Swelling properties ; Weight percentages ; Absorption ; Copolymerization ; Crosslinking ; Crude oil ; Free radical polymerization ; Multiwalled carbon nanotubes (MWCN) ; Networks (circuits) ; Swelling ; Toluene ; Copolymers
  8. Source: Advances in Polymer Technology ; Volume 32, Issue 1 , 2013 ; 07306679 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/adv.21332/abstract;jsessionid=5CBE154AA1C0364C9E7941289FABBC83.f03t02