Pervaporation properties of EC membrane crosslinked by hyperbranched-polyester acrylate

Pervaporation properties of EC membranes modified by aliphatic hyperbranched polyester

“…The detailed characteristic results were reported in our previous work [6]. The membranes containing the 4th generation HBPE (G4HBPE) were chosen as a contrast to the EC membrane in sorption and pervaporation experiments.…”

“…In sorption experiment, the mass weight ratio of HBPE to EC in membrane was 10%, and the thicknesses of membranes were controlled around 60 m. Membranes were all crosslinked by EGDM under UV light to maintain stable in higher benzene content [6], and tailored into strips with the similar size. Then these strips were immersed into various benzene/cyclohexane mixtures at 20 • C for various times, wiped quickly with tissue paper to remove liquid on membrane surface, and weighed at electric balance.…”

“…In our previous studies [6], hyperbranched polymers endcapped with acrylic groups were used as macromolecular crosslinking agents for EC membrane. Comparing to the micromolecular crosslinking agent, such as ethylene glycol dimethylacrylate (EGDM), the membrane incorporated with hyperbranched polymer exhibited both higher selectivity and permeate flux.…”

Preparation of urethane-acrylates by the photo-polymerization of acrylate monomers using a benzophenone initiator grafted onto a polyurethane copolymer

“…E-mail: bcchun@inje.ac.kr tion of benzene and cyclohexane mixtures by photo-polymerization using free benzophenone as a photosensitizer and initiator. 18 Photo cross-linking of a poly(ethylene terephthalate) copolymer and the effect of photo cross-linking on the gas permeability of a poly(acrylate) film were investigated by incorporating a benzophenone segment in the polymer backbones. 19,20 Photo-polymerized UAs grafted to inorganic silicate prepared by a sol-gel process using a free benzophenone initiator were investigated for improving the scratch and abrasion resistance of coated films.…”

Photosensitive Hyperbranched Aliphatic Polyester Based on 2,2-dihydroxymethyl Butyric Acid

“…One of the exciting and promising developments in material science today is the design and synthesis of hyperbranched polymer materials [1] which are found to have potential applications in the field of functional materials, such as films [2], coatings [3], adhesive agents [4], modifiers [5] and so on. The candidate materials include polyurethane acrylate and hyperbranched polyester polyamide [6] etc.…”