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A kind of synthetic method of surface layer containing hydroxyl core-shell latex particle

A synthesis method and hydroxyl-containing technology, which is applied in the field of polymer material synthesis, can solve problems such as demulsification, damage to the stability of the polymerization system, and the failure of the polymerization reaction to achieve the effect of increasing the content and improving the stability

Inactive Publication Date: 2016-09-14
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In view of this, it is also possible to make the surface layer of core-shell latex particles contain hydroxyl groups, but due to the particularity of monomers containing hydroxyl functional groups, the stability of the polymerization system is often destroyed during the polymerization reaction, and demulsification occurs, making the polymerization reaction can no longer proceed

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  • A kind of synthetic method of surface layer containing hydroxyl core-shell latex particle

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Embodiment Construction

[0027] It is made of raw materials with the following proportions:

[0028] Nuclear layer:

[0029] Nucleomonomer (BA) 30g Crosslinker (DVB) 1.5mL Emulsifier (SDS) 0.1g

[0030] Emulsifier (OP-10) 0.1g Initiator (KPS) 0.16g Deionized water (H 2 O) 75mL

[0031] Grafting agent (ALMA) 1mL

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Abstract

The invention discloses a synthetic method of a core-shell emulsion particle comprising hydroxyl on a surface layer and belongs to the technical field of synthetic methods of high molecular materials. The core-shell emulsion particle is prepared from the following raw materials: a nuclear layer consisting of a nuclear monomer BA (Butyl Acrylate), a crosslinking agent DVB (Divinylbenzene), an emulsifier SDS (Sodium Dodecyl Sulfonate), an emulsifier (OP-10), an initiator KPS, deionized water (H2O) and a grafting agent ALMA (1mL), and a shell layer consisting of a shell monomer MMA (Methyl Methacrylate), a functional monomer VAc, an emulsifier SDS, an emulsifier (OP-10), an initiator KPS and 10mL of deionized water (H2O). By using vinyl acetate VAc as a functional monomer, a novel polybutyl acrylate-poly(methyl methacrylate-vinyl acetate) (PBA-P(MMA-VAc) core-shell emulsion particle is synthesized by a pre-emulsification-semi-continuous seeded emulsion polymerization process. The PBA-P(MMA-VAc) core-shell emulsion particle is alcoholized to obtain the PBA-P(MMA-VA)) core-shell emulsion particle comprising hydroxyl on the surface layer.

Description

technical field [0001] The invention relates to a method for synthesizing core-shell latex particles containing hydroxyl groups on the surface, and belongs to the technical field of polymer material synthesis methods. Background technique [0002] Core-shell latex particles are generally prepared by multi-stage emulsion polymerization. First, the core layer monomer is emulsion-polymerized or copolymerized to form a seed emulsion; then the shell layer monomer is added to the seed emulsion for grafting or block copolymerization. Polymerized to form core-shell latex particles. Its core and shell can be polymers of different types or different compositions, and are widely used in coatings, plastics or resin processing due to their different properties from blends or copolymers. In recent years, many researchers have used seed emulsion polymerization to graft functional monomers with reactive functional groups on the surface of core-shell latex particles. For example, butyl acr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/06C08F220/18C08F220/14C08F218/08C08F8/00C08F2/30C08F2/26
Inventor 刘喜军孙钊
Owner QIQIHAR UNIVERSITY