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A method for patterning thermoplastic polymers using room temperature transfer imprinting

A thermoplastic polymer, transfer imprinting technology, applied in the direction of coating, etc., can solve the problems of expensive equipment, long time consumption, high temperature and high pressure, etc., and achieve the effect of improving patterning efficiency and shortening time consumption

Active Publication Date: 2019-04-16
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for efficiently patterning thermoplastic polymers at room temperature in order to overcome the shortcomings of high temperature and high pressure, time-consuming and expensive equipment in the traditional thermoplastic polymer patterning process

Method used

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  • A method for patterning thermoplastic polymers using room temperature transfer imprinting
  • A method for patterning thermoplastic polymers using room temperature transfer imprinting
  • A method for patterning thermoplastic polymers using room temperature transfer imprinting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Dissolution of thermoplastic polymer

[0025] Solid polymethyl methacrylate (PMMA) was heated and dissolved in acetone solution by ultrasonic heating to prepare a PMMA solution with a mass concentration of 2.5%.

[0026] Step 2: Preparation of soft template

[0027] Weigh the prepolymer of polydimethylsiloxane (PDMS) and initiator, the mass ratio is 10:1, stir and mix; then cast on a silicon template with a strip width of 3 μm and a spacing of 1 μm, at 60 ° C Curing in an environment; After curing, the PDMS is separated from the silicon template to obtain a PDMS soft template.

[0028] Step 3: Spin coating thermoplastic polymer on the surface of soft template

[0029] Under the conditions of a rotation speed of 4000 rpm and a rotation time of 30 s, the PMMA solution was spin-coated on the surface of the PDMS soft template to obtain a PDMS soft template with PMMA on the surface.

[0030] Step 4: Hydrophilicization of the thermoplastic polymer on the surface of...

Embodiment 2

[0037] Step 1: Dissolution of thermoplastic polymer

[0038] Solid polymethyl methacrylate (PMMA) was heated and dissolved in acetone solution by ultrasonic heating to prepare a PMMA solution with a mass concentration of 2.5%.

[0039] Step 2: Preparation of soft template

[0040] Weigh the prepolymer of polydimethylsiloxane (PDMS) and initiator, the mass ratio is 10:1, stir and mix; then cast on a silicon template with a strip width of 3 μm and a spacing of 1 μm, at 60 ° C Curing in an environment; After curing, the PDMS is separated from the silicon template to obtain a PDMS soft template.

[0041] Step 3: Spin coating thermoplastic polymer on the surface of soft template

[0042] Under the conditions of a rotation speed of 4000 rpm and a rotation time of 30 s, the PMMA solution was spin-coated on the surface of the PDMS soft template to obtain a PDMS soft template with PMMA on the surface.

[0043] Step 4: Hydrophilicization of the thermoplastic polymer on the surface of...

Embodiment 3

[0050] Step 1: Dissolution of thermoplastic polymer

[0051] Solid polystyrene (PS) was heated and dissolved in acetone solution by ultrasonic heating, and a PS solution with a mass concentration of 2% was prepared.

[0052] Step 2: Preparation of soft template

[0053] Weigh the prepolymer of polydimethylsiloxane (PDMS) and initiator, the mass ratio is 10:1, stir and mix; then cast on a silicon template with a strip width of 1 μm and a spacing of 1 μm, at 60 ° C Curing in an environment; After curing, the PDMS is separated from the silicon template to obtain a PDMS soft template.

[0054] Step 3: Spin coating thermoplastic polymer on the surface of soft template

[0055] Under the conditions of a rotation speed of 6000 rpm and a rotation time of 60 s, the PS solution was spin-coated on the surface of the PDMS soft template to obtain a PDMS soft template with PS attached to the surface.

[0056] Step 4: Hydrophilicization of the thermoplastic polymer on the surface of the s...

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Abstract

The invention relates to a method for patterning a thermoplastic polymer by using a room-temperature transfer imprinting technology. The method comprises steps as follows: firstly, thermoplastic polymer solids are dissolved in a solvent; a thermoplastic polymer solution is spin-coated or sprayed on the surface of a soft template; the surface of the thermoplastic polymer on the soft template is made hydrophilic; finally, the soft template obtained in the last step is contacted with a hydrophilic substrate in a room-temperature environment, and the polymer on the surface of the soft template is transferred to the surface of the substrate. With the adoption of the room-temperature transfer imprinting technology, the thermoplastic polymer can be quickly patterned at the room temperature under the normal pressure, and imprinting on surfaces of various substrates can be realized.

Description

technical field [0001] The invention relates to the technical field of micro-nano processing of materials, in particular to a method for patterning thermoplastic polymers using room temperature transfer embossing technology. Background technique [0002] Patterned functional materials are widely used in electronics, optics, bionics, energy and other fields. So far, there are many techniques to achieve material surface patterning, such as photolithography, nanoimprinting, scanning probe technology, interface assembly technology, etc. [0003] Typically patterning of thermoplastic polymers is achieved by nanoimprinting methods. Traditional nanoimprinting, also known as hot embossing, spin-coats a layer of thermoplastic polymer material on the substrate, such as polymethyl methacrylate, polystyrene, etc., and heats it to the glass transition temperature (T g ) After the above, the polymer is filled into the template cavity by mechanical pressure; then cooled to T g The patte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/12C08J7/04C08L83/04C08L33/12C08L25/06
CPCC08J7/0427C08J7/123C08J2325/06C08J2333/12C08J2383/04C08J2425/06C08J2433/12
Inventor 石刚车友新李赢王大伟倪才华王利魁桑欣欣
Owner JIANGNAN UNIV