A kind of preparation method and application of isocyanate polymer

A polymer and isocyanic acid technology, applied in the direction of ester copolymer adhesives, adhesive types, etc., can solve the problems of cumbersome operation, many uncontrollable factors, and inapplicability, so as to achieve uniform film and improve film-base bonding Good strength and shape retention

Active Publication Date: 2020-10-30
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of adhesive needs to be applied manually during use, which is cumbersome and uncontrollable, so it is not suitable for use on complex and sensitive substrate materials such as microelectronic devices and biochips.

Method used

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  • A kind of preparation method and application of isocyanate polymer
  • A kind of preparation method and application of isocyanate polymer
  • A kind of preparation method and application of isocyanate polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Place the cotton cloth and the activated silicon wafer as the base material on the sample stage in the reaction chamber, fix the base material so that it is in close contact with the bottom of the chamber, and pump the reaction chamber and pipeline to a vacuum state. The body gas includes initiator and monomer. The initiator is tert-butyl hydroperoxide, and the temperature of the initiator is controlled at 30°C; the monomer is isocyanoethyl methacrylate, and the temperature of the monomer is controlled at 55°C. The flow rates of the monomers are 1sccm and 0.2sccm respectively; the heating temperature of the hot wire in the reaction chamber is 220°C, the chamber pressure is 200mTorr, the substrate temperature is 30°C, the deposition time is 30min, the film thickness is about 400nm, and the deposition rate is about 13nm / min. A polyisocyanoethyl acrylate polymer film was prepared on the surface of the cotton cloth and the surface of the silicon chip. Afterwards, an annea...

Embodiment 2

[0035] Change the flow rate of the isocyanoethyl methacrylate monomer into 0.4sccm in Example 1, and the initiator is perfluorobutylsulfonyl fluoride; other conditions are unchanged, the deposition time is 20min, and the film thickness is about 400nm. The deposition rate is about 20nm / min.

Embodiment 3

[0037] With the isocyanoethyl methacrylate monomer in Example 1, the flow rate is 0.6 sccm; the initiator is replaced by perfluorooctanesulfonyl fluoride, other conditions are the same as in Example 1, the deposition time is 16min, and the film thickness is about is 400nm, and the deposition rate is about 25nm / min.

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Abstract

The invention discloses an isocyanate-based polymer preparation method, wherein the isocyanate-based polymer is an isocyanatoethyl polyacrylate polymer or a similar polymer. According to the preparation method, an isocyanatoethyl polyacrylate polymer is deposited by using an induced chemical vapor deposition method, wherein an initiator and a monomer are introduced into a reaction chamber, the pressure in the reaction chamber is set to a predetermined value, heating is performed to make the temperature in the reaction chamber and the substrate temperature of the substrate material respectivelyachieve a predetermined temperature, the initiator gas molecules in the chamber can crack due to the high temperature so as to generate primary free radicals, the primary free radicals and the monomer adsorbed on the surface of a sample are subjected to in situ polymerization to form a polymer film, and the film is further annealed. According to the present invention, the prepared isocyanatoethylpolyacrylate polymer is used as the binder or the cross-linking agent in the fields of microelectronic devices, biomedicine, biochips, microfluidic devices, films, fabrics and the like, and has excellent film base binding force.

Description

technical field [0001] The invention relates to the preparation and application of an isocyanate polymer, in particular to a gas-phase preparation method and application of an acrylate isocyanate-based polymer. Background technique [0002] As an ultra-thin material, thin-film materials usually have a thickness ranging from tens of nanometers to several microns. Because of their ultra-thinness and versatility, they can be widely used in surface modification, microelectronic devices, biomedicine, and biochips. , microfluidic devices, fabrics and other fields. In the application process, the film base binding force is very important in the application process of thin film materials. If the film base binding force and film strength are poor, it will become an obstacle to its durable use. [0003] Polyisocyanate (CN103387648A, CN1399148A, CN1488660) is commonly used as a binder and curing agent in industry, mainly because isocyanate is a very active functional group that can re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/36C08J5/18C09J133/14
CPCC08F120/36C08J5/18C08J2333/14C09J133/14
Inventor 叶羽敏冯金刚
Owner NINGBO UNIV
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