High-molecular polymer and preparation method thereof

A technology of high molecular polymer and polymerization reaction product, applied in the field of high molecular polymer and its preparation, can solve the problems of general effect and poor heat resistance, and achieve the effects of reducing motion, improving polymerization activity and high light transmittance

Active Publication Date: 2021-03-05
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common problem is that the heat resistance of the product is poor
[0006] In order to improve the heat resistance of PMMA resin, many countries and enterprises generally use methyl methacrylate and acrylate for binary copolymerization to improve the heat resistance of PMMA resin, but the effect is general

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
  • High-molecular polymer and preparation method thereof
  • High-molecular polymer and preparation method thereof
  • High-molecular polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] (1) Pre-polymerization: Rectify methyl methacrylate monomer I, methyl acrylate monomer II and N-(N'-methinemorpholine) methacrylamide monomer III separately to remove the polymerization inhibitor Impurities such as agents. Take 80 parts of monomer I, 10 parts of monomer II, 10 parts of monomer III, 0.01 part of initiator azobisisobutyronitrile, and 0.01 part of chain transfer agent n-dodecyl mercaptan, stir well until they are evenly mixed and add them into the reaction kettle , pass nitrogen gas for 15 minutes to remove dissolved oxygen, control the reaction temperature at 80°C, and react for 60 minutes under stirring;

[0067] (2) Secondary polymerization: move the polymer in the reactor into a low-temperature reaction vessel, control the reaction temperature to 40°C, and the reaction time to 30h;

[0068] (3) High-temperature post-treatment: the polymethyl methacrylate obtained in step (2) is further heated to 110° C. for high-temperature post-treatment to fully pol...

Embodiment 2

[0070] (1) Pre-polymerization: Rectify methyl methacrylate monomer I, methyl acrylate monomer II and N-(N'-methinemorpholine) methacrylamide monomer III separately to remove the polymerization inhibitor Impurities such as agents. Take 90 parts of monomer I, 5 parts of monomer II, 5 parts of monomer III, 0.15 parts of initiator azobisisobutyronitrile, and 0.15 parts of chain transfer agent n-dodecyl mercaptan, stir well until they are evenly mixed and add them into the reaction kettle , pass nitrogen gas for 15 minutes to remove dissolved oxygen, control the reaction temperature at 80°C, and react for 60 minutes under stirring;

[0071] (2) Secondary polymerization: move the polymer in the reactor into a low-temperature reaction vessel, control the reaction temperature to 50°C, and the reaction time to 30h;

[0072] (3) High-temperature post-treatment: the polymethyl methacrylate obtained in step (2) is further heated to 130° C. for high-temperature post-treatment to fully pol...

Embodiment 3

[0074] (1) Pre-polymerization: Rectify methyl methacrylate monomer I, methyl acrylate monomer II and N-(N'-methinemorpholine) methacrylamide monomer III separately to remove the polymerization inhibitor Impurities such as agents. Take 90 parts of monomer I, 5 parts of monomer II, 5 parts of monomer III, 0.01 part of initiator dibenzoyl peroxide, and 0.01 part of chain transfer agent n-dodecyl mercaptan, stir well until they are evenly mixed and add them into the reaction kettle , pass nitrogen gas for 15 minutes to remove dissolved oxygen, control the reaction temperature at 90°C, and react for 30 minutes under stirring;

[0075] (2) Secondary polymerization: move the polymer in the reactor into a low-temperature reaction vessel, control the reaction temperature to 50°C, and the reaction time to 30h;

[0076] (3) High-temperature post-treatment: the polymethyl methacrylate obtained in step (2) is further heated to 130° C. for high-temperature post-treatment to fully polymeriz...

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

No PUM Login to view more

Abstract

The invention relates to a high-molecular polymer and a preparation method thereof. The high-molecular polymer comprises a structural unit A, a structural unit B and a structural unit C. The polymer provided by the invention has good heat resistance and high light transmittance.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polymer and a preparation method thereof. Background technique [0002] Polymethyl methacrylate (PMMA) is an amorphous high polymer. It has excellent optical properties, weather resistance, aging resistance, chemical corrosion resistance, high mechanical strength and post-processing performance. It is widely used in sanitary ware, Advertising light boxes, medical, optical and IT industries and other fields. In recent years, with the rapid development of China's economy, PMMA has continued to expand into high-end industrial chains, such as optical fibers, liquid crystal display light guide plates, anti-ray PMMA, solar photovoltaic cells, and high-purity disc-grade PMMA. [0003] Plexiglass (PMMA) products are generally divided into plates, rods, tubes and molded products. There are three main polymerization processes: suspension polymerization, solution polymerizat...

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
IPC IPC(8): C08F220/14C08F220/36C08F2/02C08F2/00
CPCC08F220/14C08F2/02C08F2/00C08F220/36
Inventor 许春梅张天宇张增丽赵方园徐伟侯丹丹
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap