Polymer blending is a cost-effective way to control the properties of soft materials, but propensity for blends macrophase separate motivates development efficient compatibilization strategies. Across this broad area, particularly important polysiloxanes, which exhibit strong repulsive interactions with most organic polymers. This review analyzes state-of-the-art polysiloxane strategies silicon...

This work reports the remarkable effect of reversible gas molecular sieving for high temperature gas separation from cobalt doped ethoxy polysiloxane (CoES40) membranes. This effect stemmed from alternating the reducing and oxidising (redox) state of the cobalt particles embedded in the ES40 matrix. The reduced membranes gave the best H2 permeances of 1 × 10(-6) mol m(-2) s(-1) Pa(-1) and H2/N2...

Fibrous synthetic polymers have been introduced as the support material for packed capillaries in gas chromatography. The filaments of the polymers were packed longitudinally into a fused-silica capillary, followed by the conventional coating process for open-tubular capillaries. With various polysiloxane-based polymeric materials coated onto these filaments, it was demonstrated that the retent...

Despite prior recommendations for removal, latex gloves remain prevalent in dental clinical practice because of puncture resistance, durability, and user satisfaction.[1] However, latex gloves can impair polymerization of vinyl polysiloxane impression material (VPS) thus, resulting in inaccurate and distorted impressions, which may require the clinician to repeat the impression procedure leadin...

Organic room temperature phosphorescence (RTP) in water has attracted much attention recently for its potential biological applications. However, it remains a formidable challenge to achieve efficient RTP from pure organic compounds aqueous phase due the dramatic deactivation of triplet excited states and poor dispersibility large particles/crystals. Represented herein is covalent incorporation...

Three-dimensional imaging of dental tissues will have a major impact in dentistry if the images are accurate. The purpose of this study was to measure the accuracy and precision of a system for creating three-dimensional images of dental arches. Using vinyl polysiloxane impression materials and improved dental stone, we made 10 stone casts of a "dental" standard with known dimensions. The impre...

Immunodetection of human IgG anti-Toxocara canis was developed based on ELISA and on the use of polysiloxane/polyvinyl alcohol (POS/PVA) beads. A recombinant antigen was covalently immobilized, via glutaraldehyde, onto this hybrid inorganic-organic composite, which was prepared by the sol-gel technique. Using only 31.2 ng antigen per bead, a peroxidase conjugate dilution of 1:10,000 and a serum...