Influence of the RAFT Agent on the Reaction Direction of the Copolymerization of Polypropylene Glycol Maleate with Acrylic Acid

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F22%3A00561241" target="_blank" >RIV/61388980:_____/22:00561241 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0337729" target="_blank" >https://hdl.handle.net/11104/0337729</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31489/2022Ch3/3-22-10" target="_blank" >10.31489/2022Ch3/3-22-10</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of the RAFT Agent on the Reaction Direction of the Copolymerization of Polypropylene Glycol Maleate with Acrylic Acid

Popis výsledku v původním jazyce

This work demonstrates the capability of synthesizing new polymers on the basis of unsaturated polyester and acrylic acid in the presence of a chain-transfer agent in a dioxane solution. The initial unsaturated polyester resin was derived from the polycondensation reaction of alcohol and maleic anhydride. The molecular weight of the polypropylene glycol maleate was determined by gel permeation chromatography. The dependence of the structure, network density and product yield on the concentration of the RAFT agent was proven. It was found that the greater the amount of chain-transfer agent in the monomer mixture, the lower the yield of the crosslinked polymer and the greater the yield of the branched copolymer. The composition of the studied co-polymers was determined by FTIR spectroscopy in conjunction with the chemometric method of partial list squares in the R environment. The synthesized objects were characterized by infrared spectroscopy methods and were approximated by Gaussian contours. The results of this study show that the RAFT agent concentra-tion as well as the initial ratio of monomers in the copolymer affect the products yield. The surface topogra-phy of the studied copolymers was recorded by scanning electron microscopy. The molecular chain structure of the branched copolymers was confirmed by NMR spectroscopy.

Název v anglickém jazyce

Influence of the RAFT Agent on the Reaction Direction of the Copolymerization of Polypropylene Glycol Maleate with Acrylic Acid

Popis výsledku anglicky

This work demonstrates the capability of synthesizing new polymers on the basis of unsaturated polyester and acrylic acid in the presence of a chain-transfer agent in a dioxane solution. The initial unsaturated polyester resin was derived from the polycondensation reaction of alcohol and maleic anhydride. The molecular weight of the polypropylene glycol maleate was determined by gel permeation chromatography. The dependence of the structure, network density and product yield on the concentration of the RAFT agent was proven. It was found that the greater the amount of chain-transfer agent in the monomer mixture, the lower the yield of the crosslinked polymer and the greater the yield of the branched copolymer. The composition of the studied co-polymers was determined by FTIR spectroscopy in conjunction with the chemometric method of partial list squares in the R environment. The synthesized objects were characterized by infrared spectroscopy methods and were approximated by Gaussian contours. The results of this study show that the RAFT agent concentra-tion as well as the initial ratio of monomers in the copolymer affect the products yield. The surface topogra-phy of the studied copolymers was recorded by scanning electron microscopy. The molecular chain structure of the branched copolymers was confirmed by NMR spectroscopy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bulletin of the Karaganda University-Chemistry

ISSN

2518-718X

e-ISSN

—

Svazek periodika

2022

Číslo periodika v rámci svazku

107 SI

Stát vydavatele periodika

KZ - Republika Kazachstán

Počet stran výsledku

9

Strana od-do

189-197

Kód UT WoS článku

000849737600001

EID výsledku v databázi Scopus

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