Renewable Photopolymers: Transformation of Biomass Resources into Value-Added Products Under Light DOI
Haiwang Lai, Jing Zhang, Pu Xiao

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(46), P. 16365 - 16406

Published: Nov. 8, 2023

Light-induced cross-linking of liquid monomers has found widespread applications in various fields, such as dentistry, coatings, tissue engineering, and 3D printing. These processes typically rely on derived from petrochemicals, which are volatile price becoming increasingly depleted, compelling researchers to explore alternative sources forestry agricultural crops. The renewability these resources makes them a promising option for developing substitutive materials with similar or superior properties. structural subunits biomass offer building blocks petroleum-based photopolymers including the double bond-containing hydrophobic fatty acids terpenes, hydrophilic carbohydrates proteins, aromatic furfural compounds carbohydrates, phenolic moieties lignin. They can be transformed into by inherent chemically introduced photocurable bonds. This review seeks highlight recent advancements transforming renewable platform chemicals systems photopolymerization examines thermomechanical properties resulting cured materials. Furthermore, potential issues improvement also identified, cost-effectiveness biomass-based risk competition food production. perspectives future directions improving this area given.

Language: Английский

Stimuli responsive dynamic transformations in supramolecular gels DOI Creative Commons
Santanu Panja, Dave J. Adams

Chemical Society Reviews, Journal Year: 2021, Volume and Issue: 50(8), P. 5165 - 5200

Published: Jan. 1, 2021

Stimuli responsive dynamic changes in the networks of self-assembled gels result an alteration physical and chemical properties gel with time.

Language: Английский

Citations

328
Rapid High‐Resolution 3D Printing and Surface Functionalization via Type I Photoinitiated RAFT Polymerization DOI
Kenneth Lee, Nathaniel Corrigan, Cyrille Boyer

et al.

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(16), P. 8839 - 8850

Published: Jan. 15, 2021

Abstract RAFT facilitated digital light projection 3D printing of polymeric materials provides a convenient and facile route for inducing post‐fabrication transformations via reactivation dormant chain transfer agents. In this work, we report the use Norrish type I photoinitiator in conjunction with agent to produce variety open‐air printable resins that rapidly cure under visible irradiation. The photoinitiator‐RAFT system polymerizes extremely quickly high build rates up 9.1 cm h −1 , representing 7‐fold increase compared previous mediated systems. printed containing thiocarbonylthio groups can be also produced using low concentrations divinyl comonomers initial resins, which has not been successfully achieved other photocontrolled polymerization techniques. Interestingly, inclusion agents significantly improves resolution formulations without agent, allowing fabrication intricate complex objects. Spatiotemporally controlled surface modifications objects from on material surfaces were performed one two‐pass configurations, multiple successive post‐printing same object.

Language: Английский

Citations

121
Photopolymerization activated by photobase generators and applications: from photolithography to high-quality photoresists DOI
Hanwen Pei,

Kai Ye,

Yizhi Shao

et al.

Polymer Chemistry, Journal Year: 2024, Volume and Issue: 15(4), P. 248 - 268

Published: Jan. 1, 2024

Light-induced polymerization has become a very attractive technology for advanced manufacturing of polymers.

Language: Английский

Citations

17
Novel monomers for photopolymer networks DOI
Haiwang Lai, Xiaotong Peng, L. Li

et al.

Progress in Polymer Science, Journal Year: 2022, Volume and Issue: 128, P. 101529 - 101529

Published: March 2, 2022

Language: Английский

Citations

67
Degradable Vinyl Random Copolymers via Photocontrolled Radical Ring‐Opening Cascade Copolymerization** DOI
Wenqi Wang, Zefeng Zhou, Devavrat Sathe

et al.

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 61(8)

Published: Dec. 10, 2021

Degradable vinyl polymers by radical ring-opening polymerization are promising solutions to the challenges caused non-degradable plastics. However, achieving even distributions of labile functional groups in backbone degradable remains challenging. Herein, we report a photocatalytic approach random copolymers via cascade copolymerization (rROCCP). The rROCCP macrocyclic allylic sulfones and acrylates or acrylamides mediated visible light at ambient temperature achieved near-unity comonomer reactivity ratios over entire range feed compositions. Experimental computational evidence revealed an unusual reversible inhibition chain propagation situ generated sulfur dioxide (SO2 ), which was successfully overcome reducing solubility SO2 . This study provides powerful with comparable material properties polymers.

Language: Английский

Citations

66
Photopolymerization Approach to Advanced Polymer Composites: Integration of Surface‐Modified Nanofillers for Enhanced Properties DOI
Xiaotong Peng, Jing Zhang, Pu Xiao

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 6, 2024

The incorporation of functionalized nanofillers into polymers via photopolymerization approach has gained significant attention in recent years due to the unique properties resulting composite materials. Surface modification plays a crucial role their compatibility and polymerization behavior within polymer matrix during photopolymerization. This review focuses on developments surface various nanofillers, enabling integration systems through discusses key aspects including selection suitable modifiers, such as photoinitiators polymerizable groups, well optimization conditions achieve desired properties. influence interfacial interactions between is also explored, it directly impacts final nanocomposites. Furthermore, highlights applications nanocomposites prepared by photopolymerization, sensors, gas separation membranes, purification systems, optical devices, biomedical By providing comprehensive overview strategies impact process nanocomposite properties, this aims inspire new research directions innovative ideas development high-performance for diverse applications.

Language: Английский

Citations

15
Light-Activated Olefin Metathesis: Catalyst Development, Synthesis, and Applications DOI Creative Commons
Or Eivgi, Ravindra S. Phatake, Noy B. Nechmad

et al.

Accounts of Chemical Research, Journal Year: 2020, Volume and Issue: 53(10), P. 2456 - 2471

Published: Sept. 29, 2020

ConspectusThe most important means for tuning and improving a catalyst's properties is the delicate exchange of ligand shell around central metal atom. Perhaps no other organometallic-catalyzed reaction this statement more valid than ruthenium-based olefin metathesis. Indeed, even simple an oxygen atom sulfur in chelated ruthenium benzylidene about decade ago resulted development extremely stable, photoactive catalysts. This Account presents our perspective on dormant metathesis catalysts that can be activated by external stimuli and, specifically, use light as attractive inducing agent.The insight gained from deeper understanding cis-dichlororuthenium benzylidenes opened doorway systematic new efficient light-activated catalytic chromatic-orthogonal synthetic schemes. Following this, ways to disrupt ligand-to-metal bond accelerate isomerization process produced active precatalyst were actively pursued. Thus, we summarize herein original thermal activation experiments how they brought discoveries photoactivation sulfur-chelated family The specific wavelengths used dissociate sulfur–ruthenium allowed us develop noncommutative processes combine photochemical reactions with photoinduced metathesis, including using light-absorbing molecules "sunscreens" achieve novel selectivities. Alteration sphere, modifications N-heterocyclic carbene (NHC) introduction cyclic alkyl amino (CAAC) ligands, light-induced activity special chemical selectivity. electron-rich sulfoxides prominently, phosphites agents induce latency widened spectrum further expanding colors may now activate catalysts, which applications such stereolithography 3D printing tough metathesis-derived polymers.

Language: Английский

Citations

51
Synthesis and free radical photopolymerization of one-component type II photoinitiator based on benzophenone segment DOI

Tung‐Liang Huang,

Yung‐Chung Chen

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2022, Volume and Issue: 429, P. 113900 - 113900

Published: March 8, 2022

Language: Английский

Citations

31
Liquid-Based 4D Printing of Shape Memory Nanocomposites: A Review DOI Creative Commons
Mohamad Alsaadi, Eoin P. Hinchy, C.T. McCarthy

et al.

Journal of Manufacturing and Materials Processing, Journal Year: 2023, Volume and Issue: 7(1), P. 35 - 35

Published: Jan. 31, 2023

Significant advances have been made in recent years the materials development of liquid-based 4D printing. Nevertheless, employing additive such as nanoparticles for enhancing printability and shape memory characteristics is still challenging. Herein, we provide an overview developments printing highlights novel 4D-printable polymeric resins their nanocomposite components. Recent manufacturing technologies that utilise liquid resins, stereolithography, digital light processing, material jetting direct ink writing, are considered this review. The effects nanoparticle inclusion within on mechanical 3D-printed components comprehensively discussed. Employing various filler-modified mixture nanosilica, nanoclay nanographene, well fibrous to support properties 3D considered. Overall, review paper provides outline 4D-printed nanocomposites terms cutting-edge research, including properties.

Language: Английский

Citations

21
New functionalized thioxanthone derivatives as type I photoinitiators for polymerization under UV-Vis LEDs DOI
Yu Wang, Rao Chen,

Dongmei Liu

et al.

New Journal of Chemistry, Journal Year: 2023, Volume and Issue: 47(11), P. 5330 - 5337

Published: Jan. 1, 2023

Thioxanthone derivatives, well known as type II photoinitiators, can perform I photoinitiators to efficiently induce polymerization under visible LEDs, owing the advantages of photodecarboxylation reaction and photolysis oxime-esters.

Language: Английский

Citations

18