Strona Pracowni w budowie

Seminaria Samodzielnej Pracowni Polimerów i Biomateriałów

kolor czcionki + kolor tła = plan do 7 dni.

2019-06-17 11:30, Sala: S3 im. W. Fiszdona, piętro III
Johannes Ewald, M. Sc.
Johannes Gutenberg-Universität Mainz,
Institute of Organic Chemistry,
stażysta w SPPiB

Cleavable polyethylene glycol (PEG) for various biomedical applications

Despite its outstanding properties, the use of poly(ethylene glycol) (PEG) for biomedical applications is limited to molecular weights up to 30,000 g mol-1 to permit renal excretion. This major drawback can be overcome using cleavable PEG, which must be degradable under physiological conditions. This work focuses on the incorporation of vinyl ether moieties into the polyether backbone, to establish degradability at physiological relevant pH. Starting from allylic ether containing initiators or using 3,4 allyl epoxybutane as a comonomer for the classic anionic ring opening polymerization, allyl ether moieties can be introduced into the polyether backbone of PEG. Isomerization to vinyl ethers results in pH cleavable PEGs.
During the research stay in the Laboratory of Polymers and Biomaterials IPPT PAN, the preparation of crosslinked and pH cleavable PEG fibers obtained by electrospinning will be investigated, as well as the preparation of fibers from different poly(isoprene co styrene) copolymers of various architectures and topologies.

2019-05-20 12:00, Sala: S3 im. W. Fiszdona, piętro III
Seongpil An, PhD
Postdoctoral Research Associate
Multiscale Mechanics and Nanotechnology Laboratory (Advisor: Dr. Alexander L. Yarin)
Department of Mechanical and Industrial Engineering, University of Illinois at Chicago

Multidisciplinary applications of micro- and nanofibers for fourth industrial revolution technologies

Micro and nanoscale fiber technologies have changed the practices in various engineering fields. These technologies have merged with advanced materials to enable engineering constructs, which improve the thermal, electrical, and physicochemical features of resulting materials. Hitherto, various fiber forming technologies have enabled engineers and scientists to move to the next stage in their achievement with accompanying numerous theoretical and experimental studies on developed fibers. In the last decade, fiber-based techniques especially for transparent conducting films and extrinsic self-healing materials have emerged as promising platforms in multidisciplinary engineering related to fourth industrial revolution (4IR) technologies. During this presentation, I will highlight our research progresses on transparent conducting films and extrinsic self-healing materials, and also discuss our research in the area of soft actuators. The presented nano-textured fiber technologies will have broad applications in the engineering fields for 4IR technologies.