Organosilicon: A 'Super Material' from the Microscopic World to the Macroscopic Universe
Introduction
Organosilicon, a polymer material with Si-O-Si - as the main chain and organic functional side chains, is known as a "versatile material" due to its unique chemical structure and excellent properties. From kitchen baking molds to space station sealing materials, from electronic device insulation coatings to medical implants, the presence of organosilicon is ubiquitous. This article will comprehensively analyze the molecular characteristics, performance advantages, and application scenarios of organosilicon, revealing its underlying logic as an important driving force for modern technological development.


1、 Molecular properties of organosilicon: perfect combination of inorganic skeleton and organic function
The molecular structure of organosilicon is composed of a Si-O-Si main chain and side chain groups such as methyl, phenyl, and amino, forming a helical conformation. This structure endows organosilicon with three core characteristics:


Wide temperature resistance range: Maintaining stability from -100 ℃ to 350 ℃, it is the only rubber material with such a wide temperature adaptation range.
Strong weather resistance: almost unaffected by UV and ozone, with a service life of several decades.
Excellent electrical insulation: maintains good insulation performance over a wide temperature and frequency range, with low dielectric loss.
Scientific principle: The Si-O bond energy (452 kJ/mol) is higher than the C-C bond energy (347 kJ/mol), making organosilicon have higher thermal stability and chemical inertness; The side chain groups combine with the main chain through van der Waals forces or chemical bonds, endowing the material with diverse functions.