Thermoplastic organic-inorganic hybrid material and process for production of the same

Abstract

To provide an organic-inorganic hybrid material which is excellent in transparency, heat resistance and mechanical strengths and exhibits solubility in solvent, meltability and flowability, and excellent moldability. A thermoplastic organic-inorganic hybrid material obtained by copolymerizing inorganic particles modified with polymerizable functional groups which are prepared by covalently bonding modifying groups having the polymerizable functional groups to hydroxyl groups on the surfaces of inorganic particles with a polymerizable monomer capable of forming a thermoplastic polymer, wherein the modifying groups having polymerizable functional groups are covalently bonded to only part of the hydroxyl groups on the surfaces of the inorganic particles.

Description

Technical field [0001] The present invention relates to an organic-inorganic hybrid material that is not only excellent in heat resistance, heat resistance, transparency, surface characteristics (surface hardness), and mechanical strength, but also soluble in organic solvents, has melt fluidity, and is excellent in moldability. Background technique [0002] In the past, an organic-inorganic hybrid material in which an organic phase and an inorganic phase are finely and homogeneously dispersed has attracted attention. Such an organic-inorganic hybrid material has high mechanical strength and small dispersed particles, and therefore can have excellent characteristics such as being able to ensure transparency without being dispersed in light. [0003] As a method for producing such an organic-inorganic hybrid material, a method of hydrolyzing a metal alkoxide in the coexistence of an organic polymer (hereinafter referred to as a "sol-gel method") is often used (for example, Non-Pate...

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Problems solved by technology

[0006] On the other hand, organic-inorganic hybrid materials (nanocomposites) that do not have a covalent bond between inorganic particles and organic polymers have also been proposed, but since there is no interaction between inorganic particles and organic polymers, it is difficult to make A high content of inorganic particles is uniformly dispersed in an organic polymer to synthesize a transparent material with excellent mechanical strength (Patent Document 2)

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