Interpenetration network prepared with in situ interesterification method and uses thereof

Abstract

The invention relates to an interpenetrating polymer network prepared by in-situ ester interchange method and an application thereof. The framework formed by the reaction between the hydroxyl monomer containing at least two hydroxyl groups and the silicane coupling agent containing at least two siloxane groups is one of the components of the interpenetrating polymer network, wherein, the polymer framework formed by polymerization of enamine monomers and the polymer framework formed by hydroxyl groups and siloxane jointly constitute the interpenetrating polymer network. The interpenetrating polymer network has an organic-inorganic hybridization structure, and is an effective method to synthesize an interpenetrating polymer network. When being used as shape memory material, the interpenetrating polymer network is particularly suitable to the field of automatic intelligent material disassembly.

Description

technical field [0001] The invention relates to a synthesis method of a polymer interpenetrating network, in particular to a method for preparing an interpenetrating network through in-situ transesterification of a hydroxyl group and siloxane and a shape memory material produced therefrom, belonging to the field of new polymer materials. Background technique [0002] Polymer interpenetrating network (IPN) is the interpenetrating combination of two polymers in the form of a network, which means that one network is formed in the presence of another network, or two networks are formed simultaneously, and it can achieve " The effect of "forced mutual solubility" and "molecular synergy". Its unique penetrating entanglement structure can achieve the effects that homopolymers and other polymer materials are difficult to achieve in terms of improving polymer chain compatibility, increasing network density, microphasing phase structure, and increasing binding force. Since the 1980s,...

AI Technical Summary

Problems solved by technology

[0003] With the development of polymer synthesis technology, IPN technology has achieved unprecedented development by selecting and adjusting the compatibility between components, crosslinking density, composition ratio and synthesis method. However, so far, there are still many preparation methods. Large limitations, most of the components are difficult to form an interpenetrating network structure

Generally speaking, the preparation method of synchronous interpenetrating network generally requires some monomers to have special active groups, or can only prepare semi-interpenetrating network, while the method of sequential interpenetrating network generally undergoes a swelling process, and the proportion of components is relatively rough. And the method is cumbersome, and the molding process has considerable restrictions.