METHACRYLOXYPROPYL TERMINATED POLYDIMETHYLSILOXANE, 1,000 cSt
CAS:
Ref. 3H-DMS-R31
1kg
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100g
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Product Information
Name:METHACRYLOXYPROPYL TERMINATED POLYDIMETHYLSILOXANE, 1,000 cSt
Brand:Gelest
Description:DMS-R31: Methacryloxypropyl Terminated PDMS, 1,000 cSt (Telechelic Functional Fluid)
Methacrylate and Acrylate functional siloxanes undergo the same reactions generally associated with methacrylates and acrylates, the most conspicuous being radical induced polymerization. Unlike vinylsiloxanes which are sluggish compared to their organic counterparts, methacrylate and acrylate siloxanes have similar reactivity to their organic counterparts. The principal applications of methacrylate functional siloxanes are as modifiers to organic systems. Upon radical induced polymerization, methacryloxypropyl terminated siloxanes by themselves only increase in viscosity. Copolymers with greater than 5 mole % methacrylate substitution crosslink to give non-flowable resins. Acrylate functional siloxanes cure greater than ten times as fast methacrylate functional siloxanes on exposure to UV in the presence of a photoinitiator such as ethylbenzoin.
Oxygen is an inhibitor for methacrylate polymerization in general. The high oxygen permeability of siloxanes usually makes it necessary to blanket these materials with nitrogen or argon in order to obtain reasonable cures.
DMS-R31 Properties
Viscosity: 1,000 cStMolecular Weight: 25,000 g/molRefractive Index: 1.404
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Chemical properties
Molecular weight:25000.0
Color/Form:Liquid
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