Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Modification of the surface chemistry of macromolecular species in the presence of a conjugated guanidine

A technology of macromolecular substances and substances, applied in the field of new macromolecular substances, can solve problems such as hindering the use, producing high, and damaging viscosity

Active Publication Date: 2011-05-04
伯利莱斯
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Macromolecular additives in fact generate a viscosity that is very high and impairs, for example, the handleability of the composition, thus hindering its use in certain applications

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
  • Modification of the surface chemistry of macromolecular species in the presence of a conjugated guanidine
  • Modification of the surface chemistry of macromolecular species in the presence of a conjugated guanidine
  • Modification of the surface chemistry of macromolecular species in the presence of a conjugated guanidine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0267] Preparation of hyperbranched acrylic acid polymer (polymer P1)

[0268] 1.1 Synthesis of polyester polyol polymer

[0269] Put 126g of monomer AB2 into a 250ml jacketed reactor equipped with a mechanical stirring system and a condensation column. The medium is brought to 85° C. and 2.052 g of catalyst of formula (Ia) are added. The mixture was stirred (250 rpm) for 1 minute, then placed under -760 mmHg vacuum and stirred for 10 minutes.

[0270] 1.2 Functionalization and bridging of polyester polyol polymers (preparation of hyperbranched structures)

[0271] After 10 minutes of reaction in step 1.1, the reaction medium was brought to atmospheric pressure under nitrogen flow, the reaction temperature reached 116°C, and the temperature of the circulating fluid in the condensation column reached -20°C.

[0272] Then 51 g of MMA was gradually added to the medium. 0.820 g of catalyst of formula (Ia) and 0.380 g of BuOK (co-catalyst) were then added, using 50 mg of BH...

Embodiment 2

[0281] Synthesis of Acrylic Acrylic Hyperbranched Polymer (P2)

[0282] 2.1 Synthesis of polyester polyol polymer

[0283]Put 150g of monomer AB2 into a 250ml jacketed reactor equipped with a mechanical stirring system and a condensation column. The medium is brought to 85° C. and 2.44 g of catalyst of formula (Ia) are added. The mixture was stirred (250 rpm) for 1 minute, then placed under -760 mmHg vacuum and stirred for 10 minutes.

[0284] 2.2 Functionalization and bridging of polyester polyol polymers (preparation of hyperbranched structures)

[0285] After 10 minutes of reaction in step 1.1, the reaction medium is brought to atmospheric pressure under nitrogen flow, the reaction temperature reaches 116°C, and the temperature of the circulating fluid in the condensation column reaches -20°C.

[0286] Then 40.54 g of MMA and 12.88 g of hexanediol diacrylate (Sigma-Aldrich, Ref 411736, purity 95%) were gradually introduced into the medium. Then 0.977 g of catalyst o...

Embodiment 3

[0294] Synthesis of Hyperbranched Polymer of Acrylic Acid (Polymer P3)

[0295] 3.1 Synthesis of hyperbranched polymers with polyester polyol cores

[0296] 7.615 g of TMP (trimethylolpropane sold by Acros Organics, Ref 164650025, 98% pure) and 8.4 g of monomer AB2 were placed in a drop funnel equipped with a mechanical stirring system, condensation column and containing 117.6 g of monomer AB2 250ml jacketed reactor.

[0297] The medium was brought to 85°C and 0.137 g (Acros Organics, Ref 164650025, 98% pure) was added. The mixture was stirred (250 rpm) for 1 minute and then placed under vacuum at -760 mmHg. The mixture was subsequently stirred for 5 minutes and then placed again at atmospheric pressure.

[0298] 117.6 g of monomer AB2 contained in the dropping funnel were charged to the reactor and 1.915 g of catalyst of formula (Ia) were added again. The medium was stirred under vacuum (-760 mmHg) for 10 minutes.

[0299] 3.2 Polyester polyol bridging with diperoxid...

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
sizeaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a method for preparing macromolecular species with a modified surface, comprising a step (e) in which macromolecular species (M), initially carrying -OH and / or -SH functions, are brought into contact with: a catalyst (C) carrying at least one conjugated guanidine function; and reactive species (E), comprising reactive groups including: (i) at least one group including an alpha,beta-unsaturated carbonyl group C=C-C=O and / or an alpha, beta-unsaturated thiocarbonyl group C=C-C=S; and / or (ii) at least one heterocyclic group comprising from 3 to 5 ring members, the group being selected from cyclic ethers, cyclic thioethers and aziridine rings; and / or (iii) at least one group selected from isocyanate -N=C=O or thioisocyanate -N=C=S groups, and trivalent groups of formula >C=CZ-, where Z is an electron-withdrawing group. The invention also relates to the macromolecular species with a modified surface that are obtained in this context.

Description

technical field [0001] The present invention relates to novel macromolecular substances which are particularly suitable as additives in aqueous or non-aqueous complex media such as inks, paints, varnishes or adhesive compositions and whose surface functionality can vary to a large extent depending on the intended use change. [0002] More specifically, the present invention also relates to methods for synthesizing such macromolecular substances. [0003] For the purposes of this specification, the term "macromolecular species" means inorganic, organic or hybrid inorganic and organic compounds which may be in the form of dispersions (particles or aggregates of particles) having a size of at least 5 nm, more preferably at least 10 nm and usually less than 1 mm Dispersed in a liquid or gel composition, wherein the size is generally greater than 15 nm, most commonly greater than 20 nm, for example between 25 nm and 100 microns, and especially between 50 nm and 10 microns. [000...

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): C08J7/16B01J31/02C07C279/12C08G83/00C09D11/00
CPCB01J31/0251C08J7/16
Inventor V·戈F·罗兹
Owner 伯利莱斯
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com