When used as additives, silicas strongly promoted the epoxidation of cyclooctene by (t)BuOOH in the presence of Ti-silsesquioxane (Ti-POSS), where Ti species were found to be bound to the silica surface. Based on this observation, highly-active silica-supported Ti catalysts were prepared by the thermal treatment of mixtures of Ti-POSS and silica.

In this report, we synthesized ordered coordination polymers using polyhedral oligomeric silsesquioxanes (POSS) as a building block. A POSS with eight carboxylic terminals was coordinated with copper ions at various temperatures, forming polymeric networks. This novel coordination polymer has a long-range ordered structure.

Here we demonstrate a simple and straightforward approach to prepare POSS-embedded hyperbranched (HB-POSS) polymers with customized molecular weights and sizes just by controlling the polymerization time. The polymers can be further used for building amphiphilic polymers, presenting morphological transition from micelle to vesicle in aqueous solution.

The conventional fabrication of antifogging polymer coatings such as zwitterionic or amphiphilic copolymers typically require multiple processes. In this work, a simple photocuring method was used to create series containing polyhedral oligomeric silsesquioxane (POSS) without the need prepare copolymer. Surface analysis demonstrated that coating thickness about 6 μm, and surface POSS content sh...

The present paper proposes a reliable alternative for the increasing stability of polypropylene (PP) by modified polyhedral oligomeric silsesquioxanes (POSS). chemiluminescence measurements and FTIR records point complementarily out determinant influence substituents on progress oxidation during accelerated degradation caused ?-irradiation. main kinetic approach acting in radiation-induced agin...

We present refined coordinates and proper-motion data for the high proper-motion (HPM) stars in the Luyten Half-Second (LHS) catalog. The positional uncertainty in the original Luyten catalog is typically greater than 1000 and is often greater than 3000. We have used the digital scans of the POSS I and POSS II plates to derive more accurate positions and proper motions of the objects. Out of th...

An unmet need exists for the development of next-generation multifunctional nanocomposite materials for biomedical applications, particularly in the field of cardiovascular regenerative biology. Herein, we describe the preparation and characterization of a novel polyhedral oligomeric silsesquioxane poly(carbonate-urea) urethane (POSS-PCU) nanocomposite polymer with covalently attached anti-CD34...

A new approach is presented for detecting whether a particular computation of an asynchronous distributed system satis es Poss (read \possibly "), meaning the system could have passed through a global state satisfying predicate , or Def (read \de nitely "), meaning the system de nitely passed through a global state satisfying . Detection can be done easily by straightforward state-space search;...

Polyamide 6 (PA6) and short glass fiber (SGF) reinforced PA6 composites toughened with glycidylisobutyl oligomeric silsesquioxane (G-POSS) and 1.10-carbonyl-bis-caprolactam (CBC) were prepared by meltextrusion compounding process and then compounds were formed to 2 mm thick double edge notched tension samples (DENT) by injection moulding process. Fracture properties of composites were analyzed ...