Plasma Polymerization of Silicon-Containing Monomers.

Synthesis and Polymerization of Silylethylene Containing a Stereogenic Silicon Center

Hydrosilylation of acetylene with a chiral silane, R-(+)-methyl-1-naphthylphenylsilane [R-(+)-MeNpPhSi*H], in the presence of H2PtCl6·xH2O proceeds with retention of the configuration of the stereogenic silicon center and produces a chiral vinylsilane or silylethylene [S-(+)-MeNpPhSi*Vi] of high optical purity under mild conditions (50°C) in high chemical yield (85%). Anionic polymerizations of...

Containing Adhesion Promoting Monomers

Preeious metal alloys bondcd by the adhesive r'esin were thermocycled O, 1,OOO, 2,OOO, or 4,OOO times in water between 4 and 60°C , and tensile bend strengths were measurecl. Debonded metal surfaces after the tensile test were analyzed based on an area of cohcsive failure. Three-way ANOVA revealed that all the three parameters adherend, adhesive rnonemer, and nurnber of thermal cycles exhibited...

Adhesive properties and kinetic polymerization behavior of resins containing adhesion promoting monomers for precious metals.

Adhesion promoting monomers -5-(4-vinylbenzyl)-2-thiobarbituric acid (5VS), 9,10-epithiodecyl methacrylate (EP8MA), 9,10-epithiodecyl 4-vinylbenzoate (EP8VB), and 3,4-epithiobutyl 2,2-bis(methacryloyloxymethyl)propionate (EP2BMA)--were added to the MMA liquid of a MMA-PMMA/TBBO resin. Three dental precious metal alloys were butt-jointed together with the MMA-PMMA/TBBO adhesive resin, and tensil...

Exploiting nucleobase-containing materials – from monomers to complex morphologies using RAFT dispersion polymerization†

Comparison of polymerization of ancrod and thrombin fibrin monomers.

The polymerization of thrombin and ancrod fibrin monomers was studied with a standardized technique that evaluated turbidity changes and protein incorporation into the clot. Ancrod fibrin monomers were found to polymerize more slowly and form less turbid clots (at identical protein concentrations). Changes in ionic strength and pH influences ancrod fibrin monomer polymerization to a greater ext...