Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for analyzing molecular weight of each component in polymer compound and analysis system used in analysis method

An analysis method and analysis system technology, applied in the analysis of the molecular weight of each component in a polymer compound and the analysis system field used for the analysis

Active Publication Date: 2020-07-10
LG CHEM LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above method is limited in that, for a polymer compound having unit polymers mixed with two or more different molecular weights or monomer content ratios, in order Determine the individual molecular weights, which should be separated into unit polymers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for analyzing molecular weight of each component in polymer compound and analysis system used in analysis method
  • Method for analyzing molecular weight of each component in polymer compound and analysis system used in analysis method
  • Method for analyzing molecular weight of each component in polymer compound and analysis system used in analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0081] In this example, the molecular weight of the unit polymer contained in the sample was measured by an online SEC and Py-GC / MS analysis system.

[0082] First, based on the chromatogram obtained by injecting the sample into a size exclusion chromatography (SEC) (see figure 1 ) to specify the collection range (see figure 2 ). Samples were automatically collected at 30 second intervals by a PAL RTC from CTC Analytics (Switzerland) and injected directly into a pyrolysis gas chromatograph-mass spectrometer (Py-GC / MS) to obtain a mass spectrum for each collected sample. Based on MMA and styrene (PS) as the monomers of the samples, mass spectral data of 100 mass / charge (m / z) and 104 mass / charge (m / z) were extracted (see Figure 3a and Figure 3b ).

[0083] The sum of the areas from the heights of the respective peaks of the mass spectrum was set to 100, and the monomer content ratio was set to 50:50 as the monomer content ratio of the standard. The relative content ratio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a method for analyzing the molecular weight of each polymer contained in a polymer compound and an analysis system used in the analysis method.

Description

technical field [0001] This application claims the benefit of priority of Korean Patent Application No. 10-2018-0109018 filed on September 12, 2018 and Korean Patent Application No. 10-2019-0112999 filed on September 11, 2019, both of which The entire disclosure of this patent application is incorporated into this specification by reference. [0002] The present invention relates to an analysis method of components and molecular weights of polymer compounds and an analysis system used in the analysis method. More specifically, the present invention relates to a method for analyzing components and components of polymer compounds using a size exclusion chromatography (SEC)-pyrolysis gas chromatograph (Py-GC)-mass spectrometer (MS) system connected in series. The molecular weight method, and the analytical system used in the method. Background technique [0003] Polymer compounds are prepared by mixing heterogeneous polymers in molten state. They are used in various fields b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88G01N30/72G01N30/86
CPCG01N30/88G01N2030/885G01N30/8631G01N33/44G01N30/7206B01D15/34G01N30/86G01N2030/025
Inventor 张麟金炳贤
Owner LG CHEM LTD