Sylgard Silicone elastomer

Dissecting surface, such as a silicone rubber dissecting pad made with Sylgard silicone elastomer (Dow Corning Corp.) cured in a large petri plate, or a siliconized multiwell slide... 

Continuous studies were performed in specially prepared microreactors molded from PDMS, designated PDMS (Sylgard 184 silicone elastomer Dow Corning) poured onto silicon wafer molds. The microreactor molds were prepared using 4-in. silicon wafers of Type P, crystal orientation of , resistivity of 1 to 2 Q, and thickness of 457-575 pm from Silicon Quest (Santa Clara, C A). After preparation, mixtures of urease enzyme and PDMS (designated PDMS-E) were poured onto the microreactor mold and allowed to cure at ambient conditions. 

Squeeze equal amounts of parts A and B of Sylgard 164 silicone elastomer onto a flat surface and mix thoroughly. 

Sylgard 164 silicone elastomer (Dow Corning, Midland, Ml). Inert, two-part glue, which cures in 30 min and leaves no toxic residuals, making it compatible with live-cell imaging. 

Structures of the various butadiene/acrylonitrile and silicone elastomers used in preparing these adhesives are represented in Fig. 2. Silastic LS-420 and Sylgard 184 elastomers were obtained from Dow Corning. The aromatic amine-terminated butadiene/acrylonitrile (ATBN) is a highly viscous experimental elastomer and was contributed by B. F. Goodrich Research Center, Brecksville, Ohio. The aromatic amine-terminated liquid silicone elastomers were prepared by M T Chemicals, Rahway, NJ. 

Two approaches were used to incorporate these elastomers into the base LARC-13 resin at a concentration of 15% by weight. The first method was to physically blend the Silastic and Sylgard silicone rubbers into the LARC-13 amic acid prepolymer solution. The second method was to chemically react the rubber directly onto the prepolymer backbone by replacing a portion of the MDA diamine with an aromatic amine-terminated elastomer, ATBN or ATS, so that the elastomer was equivalent to 15% by weight of the total solution solids. The addition of the elastomeric materials to LARC-13 caused a reduction in the viscosity of the amic acids in all cases. 

Silicone and butadiene/acrylonitrile elastomers have been successfully incorporated into an addition polyimide adhesive LARC-13. Two approaches were used to accomplish this task. Fluorosilicone (Silastic) and vinyl-terminated (Sylgard) silicone rubbers were physically blended into the adhesive amic acid and aromatic ATBN and aromatic amine-terminated silicone elastomers were chemically reacted into the prepolymer backbone. Each of the four resins displayed a distinct and separate Tg for the resin and elastomer phases. Incorporation of elastomer particles at a concentration of 15% by weight solids resulted in a 6- to 7-fold increase in peel strength and a 3- to 5-fold increase in the fracture toughness of LARC-13. This improvement in toughness was accomplished at a sacrifice in the elevated temperature adhesive strength of the material. 

Poly( dimethylsiloxane) Pure, synthesized (Dow Corning Sylgard 184 Silicone Elastomer) PDMS... 

Patch-pipettes are made from glass capillaries with a tip diameter of 1-2 pm and resistance of 2-5 for giant neurons and 5-15 for normal neurons or cell-attached patches. The pipettes can be coated with Sylgard (184 silicon elastomer, Dow Corning) to reduce stray capacitance and fire-polished on a microforge. 

Figure 13.8 TG thermogram for the non-oxidative degradation of a 25 mg sample of Sylgard 184 silicone elastomer from 25-800°C at a heating rate 10°C min-1 under non-oxidative conditions. The onset of degradation was determined to be 410°C. A total -36% by wt of the material was volatilized in a two-stage process.

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