Thermoplastic biodegradable polymers displaying elastomeric behavior and mechanical consistency are greatly appreciated for the regeneration of soft tissues and for various medical devices. However, while the selection of a suitable base material is determined by mechanical and biodegradation considerations, it is the surface properties of the biomaterial that are responsible for the biological...

• BiFeO 3 particles were embedded in non-conducting non-piezoactive PVDF terpolymer. Dielectric and piezoelectric properties of -PVDF composite with different volume fraction studied. The charge voltage coefficients granular determined by using Yamada Poon model. is an interesting multiferroic material potential use sensors transducers. However, the high coercive field low dielectric strength t...

This paper focuses on the improvement of a relaxor ferroelectric terpolymer, i.e., poly (vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) [P(VDF-TrFE-CFE)], filled with a bis(2-ethylhexyl) phthalate (DEHP). The developed material gave rise to a significantly increased longitudinal electrostrictive strain, as well as an increased mechanical energy density under a relatively low electr...

Block copolymer (BCP) self-assembly is a promising route to manufacture functional nanomaterials for applications from nanolithography to optical metamaterials. Self-assembled cubic morphologies cannot, however, be conveniently optically characterized in the lab due to their structural isotropy. Here, the aligned crystallization behavior of a semicrystalline-amorphous polyisoprene-b-polystyrene...

Abstract Non-linear dielectric spectroscopy (NLDS) is employed as an effective tool to study relaxation processes and phase transitions of a poly(vinylidenefluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) relaxor-ferroelectric (R-F) terpolymer in detail. Measurements the non-linear permittivity $${\varepsilon _{2}^{'}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...

In an innovative approach to push the boundaries of antimicrobial and antioxidant strategies, we present synthesis characterization a novel terpolymer derived from N-Phenyl-p-phenylenediamine 2-aminopyrimidine with formaldehyde in presence dimethylformamide as reaction medium through polycondensation technique. Leveraging this ligand, introduce intriguing terpolymer-metal complex, created Ni (I...

The long term in vivo biocompatibility is an essential feature for the design and development of sustained drug release carriers. In the recent intraocular drug delivery studies, hydrogels were suggested as sustained release carriers. The biocompatibility test for these hydrogels, however, was commonly performed only through in vitro cell culture examination, which is insufficient before the cl...

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 1 wileyonlinelibrary.com Application area of BCP self-assembled thin films is highly restricted by the limited degree of freedom in pattern symmetry, typically including hexagonal close-packed cylinders/spheres and bilateral symmetric lamellae/cylinder arrays. Sparse density modulated nanopatterns and modified pattern symmetries are demanded for...

This article explores global geometric features of bicontinuous space-partitions and their relevance to self-assembly of block-copolymers. Using a robust definition of ‘local channel radius’, based on the concept of a medial surface [1], we relate radius variations of the space-partition to polymolecular chain stretching in bicontinuous diblockand terblock copolymer assemblies. We associate loc...