ANALYSIS METHOD FOR COMPOUND HAVING POLYOXYALKYLENE GROUP IN SAMPLE

• US 20200132625A1
• Filed: 12/26/2019
• Published: 04/30/2020
• Est. Priority Date: 06/28/2017
• Status: Abandoned Application

• Current Assignee: AGC, Inc.
• Original Assignee: AGC, Inc.
• Inventors: Kakiuchi, Toshifumi, Ishitsuka, Kei, Saito, Shun, Murotani, Eisuke, Nakashima, Toshio
• Application Number:
  US16/727,019
• Publication Number:
  US 20200132625A1
• Time in Patent Office: Days
• CPC Class Codes: C08F 2/30 non-ionic
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: G01N 27/623 combined with mass spectrometry
• CPC Class Codes: H01J 49/0036 Step by step routines describing the handling of the data generated during a measurement
• CPC Class Codes: H01J 49/0418 for laser desorption, e.g. matrix-assisted laser desorption/ionisation [MALDI] plates or surface enhanced laser desorption/ionisation [SELDI] plates

Abstract

Provided is an analysis method capable of promptly providing information for determining whether a compound having a polyoxyalkylene group is contained in a sample such as a coating material or a coating film. The analysis method includes directly analyzing a sample such as a coating material or a coating film formed from the coating material by a matrix-assisted laser desorption/ionization method or a DART method to provide information for determining whether a compound having a polyoxyalkylene group, such as alkylphenol ethoxylate, is contained in the sample.

Claims

1. A method for analyzing whether a compound having a polyoxyalkylene group is contained in a sample,

the method comprising directly analyzing the sample by a matrix-assisted laser desorption/ionization method or a DART method to provide information for determining whether the compound having a polyoxyalkylene group is contained.

2. The method according to claim 1, wherein the sample is a coating material or an extract of a coating film formed from the coating material.

3. The method according to claim 2, wherein the coating material is an aqueous coating material containing a fluorinated polymer, water, and the compound having a polyoxyalkylene group, the fluorinated polymer has a unit based on fluoroolefin, and the fluoroolefin is at least one selected from the group consisting of CF₂═

CF₂, CF₂═

CFCF₃, CF₂═

CFCl, CF₂═

CH₂, CF₃—

CH═

CHF, and CF₃—

CF═

CH₂.

4. The method according to claim 3, wherein the fluorinated polymer has a unit based on a monomer other than the fluoroolefin and copolymerizable with the fluoroolefin.

5. The method according to claim 3, wherein the fluorinated polymer further has a unit having a hydrophilic group.

6. The method according to claim 1, wherein the sample has a content of the compound having a polyoxyalkylene group of 0.0001 to 10 mass %.

7. The method according to claim 1, wherein the compound having a polyoxyalkylene group has a molecular weight of 10,000 or less.

8. The method according to claim 1, wherein the compound having a polyoxyalkylene group is a compound represented by formula (1) below:

9. The method according to claim 8, wherein the compound represented by formula (1) is alkylphenol ethoxylate.

10. The method according to claim 9, wherein the compound represented by formula (1) is nonylphenol ethoxylate or octylphenol ethoxylate.

11. The method according to claim 1, wherein the sample contains perfluorocarboxylic acid as a contaminant, and the method also provides information for determining whether the perfluorocarboxylic acid is contained.

12. The method according to claim 11, wherein the perfluorocarboxylic acid is perfluorooctanoic acid.