High‐molecular‐weight polyampholytes synthesized via daylight‐induced, initiator‐free radical polymerization of renewable itaconic acid

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00522440" target="_blank" >RIV/61389013:_____/20:00522440 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/marc.201900611" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/marc.201900611</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/marc.201900611" target="_blank" >10.1002/marc.201900611</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High‐molecular‐weight polyampholytes synthesized via daylight‐induced, initiator‐free radical polymerization of renewable itaconic acid

Popis výsledku v původním jazyce

Herein, it is reported for the first time that when mixed with choline chloride, itaconic acid (IA), normally a low‐reactive vinyl monomer, undergoes initiator‐free radical polymerization under normal daylight. Furthermore, the process results in the formation of abnormally high‐molecular‐weight poly(itaconic acid) derivatives with Mw greater than ≈800 000 g mol−1. Detailed 1D/2D NMR studies indicate that the polymers have two types of ionizable moieties, that is, anionic carboxylic and cationic choline ester groups in an average molar ratio of 12:1. Potentiometric titration shows polyampholyte behavior of the polymers. Tentative mechanistic studies reveal that the daylight‐induced polymerization is initiated by species generated via interactions of near UV light with IA. However, EPR findings show that choline also participates in secondary radical reactions. The obtained polyampholytes are useful bio‐based materials for fast and straightforward fabrication of polymer–clay nanocomposite hydrogels with excellent mechanical properties.

Název v anglickém jazyce

High‐molecular‐weight polyampholytes synthesized via daylight‐induced, initiator‐free radical polymerization of renewable itaconic acid

Popis výsledku anglicky

Herein, it is reported for the first time that when mixed with choline chloride, itaconic acid (IA), normally a low‐reactive vinyl monomer, undergoes initiator‐free radical polymerization under normal daylight. Furthermore, the process results in the formation of abnormally high‐molecular‐weight poly(itaconic acid) derivatives with Mw greater than ≈800 000 g mol−1. Detailed 1D/2D NMR studies indicate that the polymers have two types of ionizable moieties, that is, anionic carboxylic and cationic choline ester groups in an average molar ratio of 12:1. Potentiometric titration shows polyampholyte behavior of the polymers. Tentative mechanistic studies reveal that the daylight‐induced polymerization is initiated by species generated via interactions of near UV light with IA. However, EPR findings show that choline also participates in secondary radical reactions. The obtained polyampholytes are useful bio‐based materials for fast and straightforward fabrication of polymer–clay nanocomposite hydrogels with excellent mechanical properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/LO1507" target="_blank" >LO1507: Polymery pro pokročilé technologie i kvalitnější život</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Macromolecular Rapid Communications

ISSN

1022-1336

e-ISSN

—

Svazek periodika

41

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

4

Strana od-do

1-4

Kód UT WoS článku

000508089500001

EID výsledku v databázi Scopus

2-s2.0-85078678978