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Novel composite material, and polymer coating material precursor produced using same

A composite material and polymer technology, applied in the direction of natural resin coating, coating, etc., can solve the problems of preparation cost, unconfirmed applicability of thermosetting resin, troublesome time, etc., and achieve the effect of firm bonding

Active Publication Date: 2016-02-03
JAPAN SCI & TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the difficulty lies in the time-consuming and complicated preparation
In addition, the technology described in this patent document 7 has tried applicability to the case where metals such as silicon, aluminum, and stainless steel are included, and plastics such as PTFE, but it has not been confirmed that it is suitable for other plastics such as phenolic resins, which are known to be difficult to modify. Applicability of other thermosetting resins

Method used

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  • Novel composite material, and polymer coating material precursor produced using same
  • Novel composite material, and polymer coating material precursor produced using same
  • Novel composite material, and polymer coating material precursor produced using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] Compounds having a polymerization initiation site containing a halogen group (IA 1 -SP 1 -PI 1 ) synthesis (1)

[0109] As a compound having a polymerization initiation site containing a halogen group (IA 1 -SP 1 -PI 1 ) to synthesize 4-(2-(2-bromoisobutyryl)aminoethyl)benzene-1,2-diol (BiBDA) represented by formula (IV) in which X is a bromine atom (Br).

[0110] First, dopamine hydrochloride (2.0 g, 10.5 mmol) was put into 20 ml of methanol to obtain a cloudy suspension. A clear solution was obtained by adding 1.46 ml of triethylamine (10.5 mmol) thereto. After the solution was cooled to 0° C., a THF solution (2 ml) of 2-bromoisobutyryl bromide (1.3 ml; 10.5 mmol) and a methanol solution of triethylamine (2.19 ml: 15.8 mmol) were alternately added a small amount at a time ( 2ml). At this point, the pH of the solution was maintained at 9. Thereafter, the solution was warmed to room temperature and stirred for 1 hour. Next, a crude product of the target compou...

Embodiment 2

[0112] Production of polymer coating precursor containing polymerization initiator

[0113] As urushiol, a group in which R in the above formula (III) is represented by the above (iii) is used. First, iron (II) acetate (0.75 mmol) was mixed with ethanol dilute solution of urushiol (1.2 mmol), and the solution changed from brown to black at this time. Next, the bromine group-containing catechol compound (0.3 mmol) synthesized in Example 1 was added to this urushiol. The obtained mixed solution was subjected to ultrasonic homogenizer (Branson Sonifier ultrasonic cell disruptors) treatment. The obtained solution was coated (applied) on a silicon substrate as a base material by a spin coating method (3000 rpm) to form a thin film. Thereafter, a coating film having a thickness of about 1 micron was obtained by heating at 100° C. for 10 minutes. The thickness of the coating film was observed with an atomic force microscope (AFM) and measured using an Agilent 5500 microscope manuf...

Embodiment 3

[0142] Production of polymer coating materials (surface modification materials)

[0143] Using the cured film (polymer coating material precursor) produced in Example 2, the 2-(methacryloyl group represented by the above formula (V) is carried out using the bromine group contained in the cured film as a polymerization initiation point. ) The surface of ethyltrimethylammonium chloride (MTAC) initiates polymerization, and the polymer electrolyte (PMTAC) as the polymer is grafted on the surface of the cured film.

[0144] This precursor, 0.1 mmol of CuBr, and further 4,4-dimethyl-2,2-bipyridine (0.2 mmol) were placed in a flask, and replacement with argon and degassing were alternately repeated three times. Thereafter, a 1.01M methanol solution of MTAC polymer was added, and argon replacement and degassing were alternately repeated three times. Polymerization was then performed at 30°C under argon substitution. After 12 hours, the reaction was stopped by exposing the solution t...

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Abstract

Provided is a novel material which can be used suitably for, for example, a precursor of a polymer coating material that enables the coating of the surface of a base material with a polymer to modify the properties of the surface or impart a functionality to the surface. A composite material characterized in that a compound having a polymerization initiation site containing a halogen group is incorporated in a crosslinked structure comprising a catechol derivative or a phenol derivative each represented by formula (I). In formula (I), R represents a hydrocarbon group having 2 to 20 carbon atoms which may be interrupted by an oxygen atom and has at least one double bond site, and A represents a hydrogen atom, a hydroxy group or an alkoxy group having 1 to 20 carbon atoms.

Description

technical field [0001] The present invention relates to a technique for coating the surface of a substrate with a polymer to modify the surface of the substrate, imparting functions such as wettability, wear resistance, antifouling, biocompatibility, etc., and particularly relates to A novel composite material used for such a precursor of a polymer coating material, etc., and a polymer coating material precursor using the same. Background technique [0002] In recent years, a surface graft polymerization method in which a polymer is graft-polymerized on the surface of a substrate has attracted attention as means for modifying the surface of various materials (substrates) and imparting functionality. This method includes: (1) a step of physically or chemically immobilizing a polymerization initiator group on the surface of a substrate; (2) a step of performing a polymerization reaction using the above-mentioned polymerization initiator group as a starting point to form a so-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/40C08F283/00C08G65/44C08J7/16
CPCC08F220/34C08F283/00C08F2438/01C08G61/10C08G65/44C08G2261/135C08G2261/1414C08G2261/312C08G2261/43C08G2261/76C08J7/16C09D4/00C09D165/02C08F4/40C09D133/16C09D193/00C08F291/04C08F291/06C08F291/08C08F291/12C09D127/22C09D129/02
Inventor 高原淳小林元康渡边宏臣
Owner JAPAN SCI & TECH CORP
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