Reversed controlled polymerization (RCP): depolymerization from well-defined polymers to monomers

GR Jones, HS Wang, K Parkatzidis… - Journal of the …, 2023 - ACS Publications
Controlled polymerization methods are well-established synthetic protocols for the design
and preparation of polymeric materials with a high degree of precision over molar mass and …

Recyclable/degradable materials via the insertion of labile/cleavable bonds using a comonomer approach

C Lefay, Y Guillaneuf - Progress in Polymer Science, 2023 - Elsevier
Polymers have many advantages such as low weight, low cost, and, importantly, stability
under thermal, chemical, and mechanical stress. This stability, on the other hand, leads to …

Bulk depolymerization of poly (methyl methacrylate) via chain-end initiation for catalyst-free reversion to monomer

JB Young, RW Hughes, AM Tamura, LS Bailey… - Chem, 2023 - cell.com
We present the bulk depolymerization of poly (methyl methacrylate)(PMMA) at significantly
lower temperatures than previously reported methods through the incorporation of …

Photocatalytic ATRP depolymerization: temporal control at low ppm of catalyst concentration

K Parkatzidis, NP Truong… - Journal of the …, 2023 - ACS Publications
A photocatalytic ATRP depolymerization is introduced that significantly suppresses the
reaction temperature from 170 to 100° C while enabling temporal regulation. In the presence …

Fast bulk depolymerization of polymethacrylates by ATRP

F De Luca Bossa, G Yilmaz, K Matyjaszewski - ACS Macro Letters, 2023 - ACS Publications
Fast bulk depolymerization of poly (n-butyl methacrylate) and poly (methyl methacrylate),
prepared by atom transfer radical polymerization (ATRP), is reported in the temperature …

Degradation of polyacrylates by one-pot sequential dehydrodecarboxylation and ozonolysis

AB Korpusik, A Adili, K Bhatt, JE Anatot… - Journal of the …, 2023 - ACS Publications
We establish a synthetically convenient method to degrade polyacrylate homopolymers.
Carboxylic acids are installed along the polymer backbone by partial hydrolysis of the ester …

Solvent‐Free Chemical Recycling of Polymethacrylates made by ATRP and RAFT polymerization: High‐Yielding Depolymerization at Low Temperatures

R Whitfield, GR Jones, NP Truong… - Angewandte …, 2023 - Wiley Online Library
Although controlled radical polymerization is an excellent tool to make precision polymeric
materials, reversal of the process to retrieve the starting monomer is far less explored …

Controlled radical depolymerization: Structural differentiation and molecular weight control

HS Wang, K Parkatzidis, T Junkers, NP Truong… - Chem, 2024 - cell.com
Depolymerization of polymers synthesized by reversible deactivation radical polymerization
(RDRP) has recently emerged as a promising chemical recycling method for a circular …

Bulk Depolymerization of Methacrylate Polymers via Pendent Group Activation

RW Hughes, ME Lott, IS Zastrow… - Journal of the …, 2024 - ACS Publications
In this study, we present an efficient approach for the depolymerization of poly (methyl
methacrylate)(PMMA) copolymers synthesized via conventional radical polymerization. By …

Photocatalyzed hydrogen atom transfer degradation of vinyl polymers: cleavage of a backbone C− C bond triggered by radical activation of a C− H bond in a pendant

T Kimura, M Ouchi - Angewandte Chemie International Edition, 2023 - Wiley Online Library
In this work, we achieved a triggering degradation of polymers composed of carbon‐carbon
(C− C) bonded backbone without relying on introduction of labile heteroatom‐based bond …