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Novel polyester resin particles useful for toner with characteristics such as a narrow particle size distribution, a uniform and non-spherical particle shape, and high melt elasticity at high temperature with low-temperature meltability were developed. These characteristics were achieved by the application of three key technologies to the conventional dissolution suspension method, and they contribute to energy savings and high image quality for toner.
We designed and prepared thermal-responsive poly-vinylamine-containing micro-gel particles (GPs) with an optimized volume-phase transition temperature (VPTT) by modifying the concentrations of the monomer, crosslinker and surfactant. The amine concentration of the GPs was also maximized. The GPs are capable of reversibly capturing and releasing CO2 in response to a small temperature change.
Complexation of cisplatin with stabilized ‘Pluronic’ aggregates, containig functional poly(acrylic acid) moieties was investigated as platform for drug delivery application. The advantageous characteristics of the system involve high drug payload, excellent stability upon storage and sustained drug release of the conjugated drug over 2 weeks.
The blends of epoxy/amine/acrylic block copolymer (BCP) provided nanophase structures by optimizing the dissolution process of BCP. The thermal dissolution of the BCP in the amine promoted the in situ formation of carboxylic acids. Tuning the amount of carboxylic acids changed the phase structure, such variations led to the formation of different types of micelle structures, such as curved lamellae, coexisting of worm-like micelles and vesicles, and spherical micelles from epoxy/amine/BCP blends having the same composition.
Poly(glycerol adipate) and poly(glycerol adipate)-co-ethylene glycol prepolymers are produced through catalyst-free polycondensation reaction. The resulting elastomers are products of crosslinking procedures and are fully characterized, showing an ease of final property tunability. Further cytotoxicity and adherence analyses based on mouse embryonic fibroblasts suggest their excellent potential for soft tissue engineering.
Scattering function of semi-rigid cyclic polymers analyzed in terms of worm-like rings: cyclic amylose tris(phenylcarbamate) and cyclic amylose tris(n-butylcarbamate).
