Synthesis and characterization of oil sorbers based on docosanyl acrylate and methacrylates copolymers

Abstract

Docosanyl acrylate (DCA) monomer was copolymerized with different monomer feed ratios of cinnamoyloxy ethyl methacrylate (CEMA) or methyl methacrylate (MMA) monomer to produce different compositions for DCA/CEMA or DCA/MMA copolymer with low conversions. 1H NMR spectroscopy was used to confirm the copolymer structure. DCA was crosslinked with different mol % of CEMA or MMA using dibenzoyl peroxide as initiator and various weight percentages of either 1,1,1-trimethylolpropane triacrylates or 1,1,1-trimethylolpropane trimethacrylates crosslinkers. The effects of monomer feed composition, crosslinker concentration, and the hydrophobicity of the copolymer units on swelling properties of the crosslinked polymers were studied through the oil absorbency tests. The network parameters, such as polymer solvent interaction (v), effective crosslink density (t e ), equilibrium modulus of elasticity (G T ), and average molecular weight between crosslinks (M c ), were determined and correlated with the structure of the synthesized copolymers.

Role of mechanical factors in applications of stimuli-responsive polymer gels – Status and prospects

“…Thus, crosslinked cinnamoyloxyethyl methacrylate/isooctyl acrylate copolymers demonstrated 12 g/g toluene absorbency and 6 g/g crude oil absorbency with swelling time 3–5 h [55]. Docosanyl acrylate/cinnamoyloxy ethyl methacrylate demonstrate 35 g/g oil absorbency after 10 h swelling time [56]. Crosslinking polymerization of 4-tert-butylstyrene/ethylene–propylene–diene terpolymer/styrene–butadiene blend produced absorbent capable of 60 g/g oil absorbency upon ~ 5 days swelling time [57].…”

β-Cyclodextrin-based oil-absorbents: Preparation, high oil absorbency and reusability

“…Among them, oil-absorbent is widely regarded as the best cleanup material for absorbing oils because of the relatively fast oil absorption rate, large oil absorbency, and good absorption selectivity of oil over water. Many researchers have made significant contributions towards the progress on the synthesis of oil-absorbent (Farag & El-Saeed, 2008;Jang & Kim, 2000a, 2000bKim, Chung, Ha, Kim, & Cho, 1999;Medeiros, Oliveira, Sansiviero, Araujo, & Lago, 2010;Shan, Xu, Weng, & Huang, 2003a, 2003bShimizu, Koshiro, Yamada, & Tada, 1997;Zhou & Chuai, 2010). Atta and coworkers reported some oil-absorbents based on polyisobutylene/octadecyl acrylate copolymers (Atta, El-Ghazawy, Farag, & Abdel-Azim, 2006), cinnamoyloxyethyl methacrylates/isooctyl acrylate (Atta, El-Ghazawy, Farag, ElKafrawy, & Abdel-Azim, 2005), and reactive ␣-olefins/maleic anhydride (Atta & Arndt, 2005;Atta, El-Hamouly, Sabagh, Al, & Gabr, 2007a, 2007b.…”

Oil sorbers based on renewable sources and coffee grounds

“…Crude oil absorbers are materials that are able to clean and remove oily compounds from the water surface. Currently, several studies are being conducted aimed at this kind of application . This type of material can be considered a beneficial alternative because they may significantly reduce the impact of this kind of accident.…”