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A novel biodegradable graft copolymer, dextran-g-poly(1,4-dioxan-2-one) (PODEX), was synthesized through the ring-opening polymerization (ROP) of 1,4-dioxan-2-one (PDO) onto a dextran backbone. Initially, dextran was silylated with 1,1,1,3,3,3-hexamethyldisilazane. The grafting from pathway was conducted with various (30–70) PDO/OH feed ratios to obtain PODEX copolymers with a various PPDO graft structures...
This work was discussed on the morphology and crystal structure on electrospun fibrous PB membrane, namely, both highly porous PB film and the fibrous PB nonwoven prepared by the same method of electrospinning process. Both the tip-to-collector distance (TCD) and the surrounding temperature were crucial parameters for determining the resulting morphologies. In terms of shorter TCD (below 10 cm) and...
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