A method for preparing thermosensitive polymer pnipam film by plasma-induced solution polymerization

A temperature-sensitive polymer and plasma technology, which is applied in the field of preparing temperature-sensitive polymer PNIPAM film, can solve the problems of easily damaged shape, unstable chemical properties, complicated process, etc. The effect of less steps and simple process
CN106188587BActive Publication Date: 2019-03-12黑龙江省工研院资产经营管理有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
黑龙江省工研院资产经营管理有限公司
Publication Date
2019-03-12

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Abstract

The invention discloses a method for preparing thermo-sensitive polymer PNIPAM film through plasma-induced solution polymerization, relates to a method for preparing the thermo-sensitive polymer PNIPAM film and aims at solving the problems of complex process, proneness to causing damage to shape and unstable chemical property of existing PNIPAM film synthesis methods. The method includes: step 1, dissolving N-isopropyl acrylamide crystal in ultrapure water, and adding N, N-methylene bisacrylamide; step 2, spreading a solution prepared in the step 1 on the surface of a glass substrate, putting the glass substrate in a quartz reaction kettle, sealing, and feeding argon; step 3, putting the quartz reaction kettle between two poles of a plasma generator for treatment to obtain a thin film, and cleaning and drying the thin film to complete preparation. Plasma-induced solution polymerization is adopted for film forming, so that the method is simple in process and few in step; film forming is independent from surface property of the substrate; the shape of the film is less prone to being damaged, and the film is stable in chemical property; the film is unitary in ingredient, biologically-nontoxic, conducive to modification and modifiable in structure and has great potential application prospect in many fields.
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Description

technical field

[0001] The invention relates to a method for preparing a thermosensitive polymer PNIPAM film. Background technique

[0002] Stimuli-responsive polymers are a class of polymers that respond to environmental changes and produce changes in physical or chemical properties. As a stimuli-responsive polymer, poly-N-isopropylacrylamide (PNIPAM) has unique temperature-responsive behavior. The lower critical solution temperature (LCST) of PNIPAM is 32°C. When the temperature is lower than 32°C, PNIPAM is hydrophilic; when the temperature is higher than 32°C, PNIPAM is hydrophobic. Due to the effective temperature responsiveness of PNIPAM, it has broad application prospects in water treatment, drug controlled release, cell culture, etc.

[0003] At present, the more common PNIPAM membrane synthesis methods are as follows: self-assembled monolayer membranes (SAMs), atom transfer radical polymerization (ATRP), electron beam ionization, plasma graft polymerization, these...

Claims

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