Diminishing the catalyst concentration in the Cu(0)-RDRP and ATRP synthesis of well-defined low-molecular weight poly(glycidyl methacrylate)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F23%3A00573526" target="_blank" >RIV/61389013:_____/23:00573526 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/pol.20230087" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/pol.20230087</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pol.20230087" target="_blank" >10.1002/pol.20230087</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diminishing the catalyst concentration in the Cu(0)-RDRP and ATRP synthesis of well-defined low-molecular weight poly(glycidyl methacrylate)

Popis výsledku v původním jazyce

Low-molecular weight (MW) solvent-borne functional (meth)acrylic polymers find an important use in coating resins. However, when preparing such polymers through copper-mediated reversible-deactivation radical polymerization (RDRP), contamination with colored copper species and the use of expensive ligands represent significant obstacles from the industrial application viewpoint. Here, we investigated the possibilities of diminishing the catalyst levels in metallic coper-mediated RDRP (Cu(0)-RDRP) and atom transfer radical polymerization (ATRP) of a widely used functional monomer, glycidyl methacrylate (GMA), targeting a low MW of approximately 3000. Both Cu wire- and powder-catalyzed Cu(0)-RDRP provided well-defined, low-MW poly(GMA) at quantitative conversions when using an inexpensive PMDETA ligand in DMSO. However, only with Cu powder, the contamination of the final polymerization mixture with Cu species could be efficiently diminished to ≤66 ppm while maintaining the polymerization control. Additionally, the in situ block copolymerization was successfully demonstrated, furnishing a poly(GMA)-b-poly(MMA) mixture containing only 39 ppm of Cu in a process facilitated by the intrinsic reductive properties of the GMA's epoxide groups. Significantly, the targeted low-MW poly(GMA) could also be synthesized by low-catalyst-concentration ATRP (CuBr/PMDETA system), obtaining well-defined polymers with quantitative conversions at ca 50 ppm of Cu in the final mixture, both at r.t. and 50 °C.

Název v anglickém jazyce

Diminishing the catalyst concentration in the Cu(0)-RDRP and ATRP synthesis of well-defined low-molecular weight poly(glycidyl methacrylate)

Popis výsledku anglicky

Low-molecular weight (MW) solvent-borne functional (meth)acrylic polymers find an important use in coating resins. However, when preparing such polymers through copper-mediated reversible-deactivation radical polymerization (RDRP), contamination with colored copper species and the use of expensive ligands represent significant obstacles from the industrial application viewpoint. Here, we investigated the possibilities of diminishing the catalyst levels in metallic coper-mediated RDRP (Cu(0)-RDRP) and atom transfer radical polymerization (ATRP) of a widely used functional monomer, glycidyl methacrylate (GMA), targeting a low MW of approximately 3000. Both Cu wire- and powder-catalyzed Cu(0)-RDRP provided well-defined, low-MW poly(GMA) at quantitative conversions when using an inexpensive PMDETA ligand in DMSO. However, only with Cu powder, the contamination of the final polymerization mixture with Cu species could be efficiently diminished to ≤66 ppm while maintaining the polymerization control. Additionally, the in situ block copolymerization was successfully demonstrated, furnishing a poly(GMA)-b-poly(MMA) mixture containing only 39 ppm of Cu in a process facilitated by the intrinsic reductive properties of the GMA's epoxide groups. Significantly, the targeted low-MW poly(GMA) could also be synthesized by low-catalyst-concentration ATRP (CuBr/PMDETA system), obtaining well-defined polymers with quantitative conversions at ca 50 ppm of Cu in the final mixture, both at r.t. and 50 °C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Polymer Science

ISSN

2642-4150

e-ISSN

2642-4169

Svazek periodika

61

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1348-1359

Kód UT WoS článku

000962219600001

EID výsledku v databázi Scopus

2-s2.0-85151998071