Themed collection Photopolymer science
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Introduction to the themed collection on photopolymer science dedicated to Ewa Andrezejewska
Kurt Dietliker, Robert Liska and Marco Sangermano introduce the Polymer Chemistry themed collection on photopolymer science dedicated to Ewa Andrezejewska.
Polym. Chem., 2022,13, 1151-1151
https://doi.org/10.1039/D2PY90020C
Recent progress in the development of highly active dyeing photoinitiators based on 1,3-bis(p-substituted phenylamino)squaraines for radical polymerization of acrylates
Squaraines are an important and very interesting group of organic functional dyes because of their unique physicochemical properties. These compounds have found many applications in different areas of science and technique.
Polym. Chem., 2022,13, 1787-1812
https://doi.org/10.1039/D1PY01519B
Photobase-catalysed anionic thiol-epoxy click photopolymerization under NIR irradiation: from deep curing to shape memory
A photobase generator absorbing upconversion fluorescence can efficiently catalyze anionic thiol-epoxy click photopolymerization under 980 nm NIR light irradiation.
Polym. Chem., 2022,13, 3048-3052
https://doi.org/10.1039/D2PY00144F
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3D printed elastomers with Sylgard-184-like mechanical properties and tuneable degradability
Digital light 3D printing of biodegradable elastomers with mechanical properties comparable to the ones of Sylgard-184 via dual-polymer resins.
Polym. Chem., 2022,13, 2271-2276
https://doi.org/10.1039/D2PY00113F
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Volumetric additive manufacturing of shape memory polymers
Shape memory polymers (SMPs) capable of recovering from a deformed state through heating were 3D printed using volumetric additive manufacturing, which enabled the layerless, single-step fabrication of self-standing tripod and actuating gripper structures.
Polym. Chem., 2022,13, 1813-1817
https://doi.org/10.1039/D1PY01723C
A cyclopolymerizable, doubly Irgacure 2959 functionalized quaternary ammonium salt photoinitiator and its water-soluble copolymer with diallyldimethylammonium chloride
A novel cyclopolymerizable allyl–acrylate quaternary ammonium salt PI based on I2959 and its cyclocopolymer with DADMAC are synthesized and their water solubility, photoinitiation ability, migration stability and thermal stability is evaluated.
Polym. Chem., 2023,14, 1195-1205
https://doi.org/10.1039/D2PY01449A
Controlling phase separated domains in UV-curable formulations with OH-functionalized prepolymers
Modification of photocurable radical systems with high molecular weight prepolymers enables access to a wide array of polymer structures and properties.
Polym. Chem., 2022,13, 3102-3115
https://doi.org/10.1039/D2PY00159D
Thiol–ene ionogels based on polymerizable imidazolium ionic liquids
In this work, we report the synthesis of polymerizable ionic liquids (PILs) and the synthesis of ionogels by thiol–ene photopolymerization.
Polym. Chem., 2022,13, 3154-3170
https://doi.org/10.1039/D1PY01726H
3-Ketoquinolones as new photoinitiators for free radical photopolymerization under LED
3-Ketoquinolones are efficient Type II photoinitiators for free radical photopolymerization.
Polym. Chem., 2022,13, 2659-2664
https://doi.org/10.1039/D2PY00058J
Streamlined concept towards spatially resolved photoactivation of dynamic transesterification in vitrimeric polymers by applying thermally stable photolatent bases
Photolatent base catalysts exhibiting ideal structural properties for the straightforward manufacturing of thiol–epoxy vitrimers equipped with spatially resolved dynamic properties.
Polym. Chem., 2022,13, 1169-1176
https://doi.org/10.1039/D1PY01722E
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A disulfide-based linker for thiol–norbornene conjugation: formation and cleavage of hydrogels by the use of light
A photolinker for formation of disulfide-crosslinked hydrogels via light-triggered thiol–ene conjugation has been developed. Hydrogels can be patterned via two-photon cleavage of disulfide-linkages in the presence of a two-photon active compound.
Polym. Chem., 2022,13, 1158-1168
https://doi.org/10.1039/D1PY00914A
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Photo-chemically induced polycondensation of a pure phenolic resin for additive manufacturing
Additive manufacturing of phenolic resins as a proof-of-concept for the first photo-chemical induced polycondensation by Hot Lithography. Through the dual use of a photoacidgenerator, the first pure 3D printing of Bakelite© is investigated.
Polym. Chem., 2022,13, 768-777
https://doi.org/10.1039/D1PY01665B
Photoresponsive nanostructures of azobenzene-containing block copolymers at solid surfaces
An azobenzene-containing block copolymer self-assembled into island-like nanostructures. The island-like nanostructures fused into chain-like nanostructures under UV irradiation based on photoinduced solid-to-liquid transitions at the nanoscale.
Polym. Chem., 2022,13, 411-419
https://doi.org/10.1039/D1PY01452H
Novel photoinitiators based on difluoroborate complexes of squaraine dyes for radical polymerization of acrylates upon visible light
The present article describes the efficiency of novel two-component photoinitiators based on a typical squaraine dye and its difluoroborate analogues for the radical polymerization of acrylate monomers.
Polym. Chem., 2022,13, 220-234
https://doi.org/10.1039/D1PY01294K
Antibacterial cotton fabric prepared by surface-initiated photochemically induced atom transfer radical polymerization of 2-(dimethylamino)ethyl methacrylate with subsequent quaternization
Antibacterial highly grafted cotton fabric with good laundry resistance was prepared using photoATRP in the presence of air.
Polym. Chem., 2021,12, 7073-7084
https://doi.org/10.1039/D1PY01322J
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Green-light photocleavable meso-methyl BODIPY building blocks for macromolecular chemistry
We report the design of easily accessible, meso-methyl BODIPY monomers and their incorporation into photoclippable macromolecules.
Polym. Chem., 2021,12, 6927-6936
https://doi.org/10.1039/D1PY01245B
Development of the first panchromatic BODIPY-based one-component iodonium salts for initiating the photopolymerization processes
Herein, new iodonium salts based on a 4,4-difluoro-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indecene (B-1) chromophore have been introduced to 3D printing applications.
Polym. Chem., 2021,12, 6873-6893
https://doi.org/10.1039/D1PY01263K
Role of thiol oxidation by air in the mechanism of the self-initiated thermal thiol–ene polymerization
We highlight the role of thiyl initiating radicals generated by air oxidation of thiols in the mechanism accounting for the self-initiation of thiol–ene polymerization. The driving force of this reaction is polarization of the S–H bond.
Polym. Chem., 2021,12, 6594-6605
https://doi.org/10.1039/D1PY01301G
Screening RAFT agents and photocatalysts to mediate PET-RAFT polymerization using a high throughput approach
We report a high throughput approach for the screening of RAFT agents and photocatalysts to mediate photoinduced electron/energy transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization.
Polym. Chem., 2021,12, 6548-6560
https://doi.org/10.1039/D1PY01258D
Light induced crosslinking of main chain polybenzoxazines
Photo-induced cationic ring opening reactions were performed on main chain polybenzoxazine precursors using iodonium salts.
Polym. Chem., 2021,12, 5781-5786
https://doi.org/10.1039/D1PY01080H
The NIR-sensitized cationic photopolymerization of oxetanes in combination with epoxide and acrylate monomers
NIR-sensitized photopolymerisation at 805 nm facilitates the cationic polymerization of oxetanes. This can additionally be combined with free-radical polymerization.
Polym. Chem., 2021,12, 5752-5759
https://doi.org/10.1039/D1PY00999K
Shape memory-assisted self-healing of dynamic thiol-acrylate networks
By following shape-memory assisted self-healing (SMASH), we used the shape-memory properties of thiol-acrylate photopolymers to physically close a scratch, whilst chemical healing was obtained via thermo-activated dynamic exchange reactions.
Polym. Chem., 2021,12, 5704-5714
https://doi.org/10.1039/D1PY00925G
Hollow microspherical carbazole-based conjugated polymers by photoinduced step-growth polymerization
A new photochemical approach for the synthesis of metal-free three-dimensional hollow spherical conjugated polymers is described.
Polym. Chem., 2021,12, 4654-4660
https://doi.org/10.1039/D1PY00822F