Polyhedral Oligomeric Silsesquioxanes (POSS)—Synthesis, Functionalization, Applications
A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".
Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 6532
Special Issue Editors
Interests: chemistry and technology of polymers; organic-inorganic hybrid materials; thermal degradation behavior; flame retardancy
Special Issues, Collections and Topics in MDPI journals
Interests: polymer composites; biomaterials; nanocomposites; composites for medical applications; POSS; polyurethanes
Interests: organic–inorganic hybrid materials and nanocomposites; stimuli-responsive polymers; glass transition; molecular dynamics; mechanical properties
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Polyhedral oligomeric silsesquioxanes (POSS) combine the best of the two worlds of inorganic and organic matter. As they consist of an inorganic core and an organic shell, one may refer to them as organic–inorganic hybrids. The core is a cage with silicon on its vertices and oxygen on its edges while the shell is composed of organic groups attached to the Si atoms. The vertex groups can be selected with remarkable versatility to accommodate different physical and chemical properties. With appropriate functionalization of the vertex groups, POSS can be applied as precursors in the synthesis of new nanomaterials or be incorporated in the organic polymer matrix as a reactive or inert filler. In that respect, functionalized POSS may serve as unique nanobuilding blocks in the synthesis of novel hybrid materials with improved characteristics over the traditional composites.
Functionalizations of POSS molecules have found their way into a diverse field of applications. They have been used as flame-retardant fillers or as reinforcing fillers in engineering polymers. Owing to their biocompatibility they have also been used in the biomedical field as components of dental fillings or tissue engineering scaffolds. They have also been proposed as drug delivery carriers, liquid crystals precursors, or catalysts.
This Special Issue will collect articles reporting on recent advances in the synthesis of various POSS molecules and their functionalization schemes. Furthermore, we would like to attract manuscripts on the applications of POSS, including but not limited to their role as reinforcing fillers for organic matrices, biomedical additives, and as catalysts. Interdisciplinary works that connect the chemistry of POSS molecules as nanobuilding blocks with materials science, physics, and biology-related approaches are particularly welcome.
Prof. Dr. Krzysztof Pielichowski
Dr. Edyta Hebda
Dr. Konstantinos N. Raftopoulos
Guest Editors
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Keywords
- Polyhedral oligomeric silsesquioxane (POSS)
- Organic–inorganic hybrid materials
- Synthesis
- Functionalization
- Characterization
- Applications
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