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Studies of Crosslinked Styrene–Alkyl Acrylate Copolymers for Oil Absorbency Application. I. Synthesis and Characterization
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- Authors
- Issue Date
- 2000
- Publisher
- Wiley-Blackwell
- Citation
- Journal of Applied Polymer Science 2000, 77, 903–913
- Abstract
- The prepolymers for a novel oil absorbent were synthesized by copolymerizing
styrene with 2-ethylhexyl acrylate (EHA), lauryl acrylate (LA), lauryl methacrylate
(LMA), and stearyl acrylate (SA). Suspension polymerization was carried out using
benzoyl peroxide (BPO) as an initiator with a varying monomer feed ratio, and the
copolymers were characterized by FTIR, 1H-NMR, DSC, and a solubility test. The
copolymers were random copolymers with a single phase, and their compositions were
similar to those in the monomer feed. The Tg of the copolymer could be controlled by
varying the styrene/acrylate ratio. Acrylates introduced the crosslinking to linear
polymers as a side reaction. Crosslinked copolymers were synthesized by adding divinylbenzene
(DVB) as a crosslinking agent. At a low degree of crosslinking (0.5 wt %
DVB), the Tg of the crosslinked copolymers was lower than or similar to that of the
uncrosslinked ones. At a high degree of crosslinking, the Tg increased with increasing
crosslinking density.
- ISSN
- 0021-8995
- Language
- English
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