Characterization of Molecular Structure of Emulsion Acrylic Microgels: Exploring the Impact of Molar Mass on Coating Properties of Self-Crosslinking Latexes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F16%3AN0000065" target="_blank" >RIV/28676092:_____/16:N0000065 - isvavai.cz</a>

Result on the web

<a href="http://www.tandfonline.com/doi/full/10.1080/03602559.2016.1185662" target="_blank" >http://www.tandfonline.com/doi/full/10.1080/03602559.2016.1185662</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/03602559.2016.1185662" target="_blank" >10.1080/03602559.2016.1185662</a>

Result language

angličtina

Original language name

Characterization of Molecular Structure of Emulsion Acrylic Microgels: Exploring the Impact of Molar Mass on Coating Properties of Self-Crosslinking Latexes

Original language description

Self-crosslinking latexes of core-shell microgel particles were synthesized by the semi-continuous non-seeded emulsion polymerization of methyl methacrylate, butyl acrylate and methacrylic acid as main monomers. The particle core was slightly crosslinked using a constant amount of allyl methacrylate as a comonomer, to prevent the copolymers forming the core phase from migration into the shell phase. For interfacial crosslinking, diacetone acrylamide was copolymerized into the shell layer of latex particles to provide sites for subsequent reaction with adipic acid dihydrazide. The molar mass of copolymers forming the shell layer was gradually reduced by isooctyl 3-mercaptopropionate chain transfer agent included in the synthesis of each of the shell layers. The molar mass and molar mass distribution of structured latex particles was determined using the conventional SEC-MALS technique and the novel A4F-MALS method. Whereas SEC-MALS was found to be convenient for characterization of low molar mass shell copolymers without crosslinked structure, A4F-MALS was proved as a very efficient technique for characterization of high molar mass copolymers and core-shell microgels. The influence of molar mass of the shell layer of microgels on film-forming and final coating properties of self-crosslinking latexes was investigated as well. The results confirmed theoretical predictions and described empirically the effects of molar mass of the shell layer copolymer on decreasing the minimum film-forming temperature and influencing the end-use properties of coatings.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JP - Industrial processes and processing

OECD FORD branch

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Project

<a href="/en/project/LO1418" target="_blank" >LO1418: Progressive development of the Membrane Innovation Centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Name of the periodical

Polymer-Plastic Technology and Engineering

ISSN

0360-2559

e-ISSN

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Volume of the periodical

2016

Issue of the periodical within the volume

2016

Country of publishing house

GB - UNITED KINGDOM

Number of pages

39

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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