Effect of monomer sequence distribution on the CO2-philicity of a well-defined ternary copolymer: Poly(vinyl acetate-co-vinyl butyrate-co-vinyl butyl ether)
作者： Zewen Zhu , Yongfei Zhang , Wei Jiang , Lu Sun , Lixin Dai
DOI: 10.1016/J.POLYMER.2017.09.050
关键词: Materials science 、 Triad (anatomy) 、 Monomer 、 Copolymer 、 Vinyl acetate 、 Diad 、 Polymerization 、 Chain transfer 、 Polymer chemistry 、 Cloud point
摘要: Abstract The work aims to interpret the phase behavior of multi-polymers in super critical CO 2 via a spatially dependent structural parameter, monomer sequence distribution, rather than traditional statistical factors. Well-defined copolymers based on three -philic monomers, vinyl acetate, butyrate and butyl ether, were synthesized with reversible addition-fragmentation chain transfer free-radical polymerization by combining their kinetic behaviors pairwise reactivity ratios into Alfrey–Goldfinger–Skeist model. corresponding cloud point pressures become nonlinear polymer composition possess upper solution pressure behavior. Additionally, diad triad distributions calculated simple theoretical arithmetic. While analyzing measurements, we found that both differences symmetrical structure triads could impact -philicity triads, which close properties products, thus, variations distribution reasonably predict products.
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