An anionic mechanism is used to create polymers and copolymers as confined to, or anchored to, high-surface-area porous nanoparticles. Linear polymers with soft and glassy chains, such as polyisoprene and polymethylmethacrylate, were produced by confined anionic polymerization in 3D networks of porous aromatic frameworks. Alternatively, multiple anions were generated on the designed frameworks which bear removal protons at selected positions, and initiate chain propagation, resulting in chains covalently connected to the 3D network. Such growth can continue outside the pores to produce polymer-matrix nanoparticles coated with anchored chains. Sequential reactions were promoted by the living character of this anionic propagation, yielding nanoparticles that were covered by a second polymer anchored by anionic block copolymerization. The intimacy of the matrix and the grown-in polymers was demonstrated by magnetization transfer across the interfaces in 2D 1H-13C-HETCOR NMR spectra.

Perego, J., Bracco, S., Comotti, A., Piga, D., Bassanetti, I., Sozzani, P. (2021). Anionic Polymerization in Porous Organic Frameworks: A Strategy to Fabricate Anchored Polymers and Copolymers. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 60(11), 6117-6123 [10.1002/anie.202014975].

Anionic Polymerization in Porous Organic Frameworks: A Strategy to Fabricate Anchored Polymers and Copolymers

Perego J.
Primo
Membro del Collaboration Group
;
Bracco S.
Secondo
Membro del Collaboration Group
;
Comotti A.
Membro del Collaboration Group
;
Piga D.
Membro del Collaboration Group
;
Bassanetti I.
Penultimo
Membro del Collaboration Group
;
Sozzani P.
Ultimo
Membro del Collaboration Group
2021

Abstract

An anionic mechanism is used to create polymers and copolymers as confined to, or anchored to, high-surface-area porous nanoparticles. Linear polymers with soft and glassy chains, such as polyisoprene and polymethylmethacrylate, were produced by confined anionic polymerization in 3D networks of porous aromatic frameworks. Alternatively, multiple anions were generated on the designed frameworks which bear removal protons at selected positions, and initiate chain propagation, resulting in chains covalently connected to the 3D network. Such growth can continue outside the pores to produce polymer-matrix nanoparticles coated with anchored chains. Sequential reactions were promoted by the living character of this anionic propagation, yielding nanoparticles that were covered by a second polymer anchored by anionic block copolymerization. The intimacy of the matrix and the grown-in polymers was demonstrated by magnetization transfer across the interfaces in 2D 1H-13C-HETCOR NMR spectra.
Articolo in rivista - Articolo scientifico
materials science; nanoparticles; polymerization; porous frameworks; solid-state NMR;
English
1-dic-2020
2021
60
11
6117
6123
reserved
Perego, J., Bracco, S., Comotti, A., Piga, D., Bassanetti, I., Sozzani, P. (2021). Anionic Polymerization in Porous Organic Frameworks: A Strategy to Fabricate Anchored Polymers and Copolymers. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 60(11), 6117-6123 [10.1002/anie.202014975].
File in questo prodotto:
File Dimensione Formato  
AngewandteChemie_AnionicPolymerization_submission_09-11-20.pdf

Solo gestori archivio

Descrizione: Submitted version
Tipologia di allegato: Other attachments
Dimensione 782.01 kB
Formato Adobe PDF
782.01 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/336453
Citazioni
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 1
Social impact