Unique structure of silicone materials
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(1) Sufficient methyl groups on the Si atom shield the high-energy polysiloxane backbone;
(2) C-H is non-polar, making the interaction between molecules very weak;
(3) The Si-O bond length is long, and the Si-O-Si bond angle is large.
(4) Si-O bond is a covalent bond with 50% ionic bond characteristics (covalent bond has directionality, ionic bond has no directionality).
