Polymerization Induced Microphase Separation for the Fabrication of Nanostructured Materials

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(44)

Published: July 11, 2023

Polymerization induced microphase separation (PIMS) is a strategy used to develop unique nanostructures with highly useful morphologies through the of emergent block copolymers during polymerization. In this process, are formed at least two chemically independent domains, where one domain composed robust crosslinked polymer. Crucially, synthetically simple method readily nanostructured materials coveted co-continuous morphology, which can also be converted into mesoporous by selective etching domain. As PIMS exploits copolymer mechanism, size each tightly controlled modifying precursors, thus providing unparalleled control over nanostructure and resultant mesopore sizes. Since its inception 11 years ago, has been vast inventory advanced for an extensive range applications including biomedical devices, ion exchange membranes, lithium-ion batteries, catalysis, 3D printing, fluorescence-based sensors, among many others. review, we provide comprehensive overview summarize latest developments in chemistry, discuss utility wide variety relevant applications.

Language: Английский

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From Unregulated Networks to Designed Microstructures: Introducing Heterogeneity at Different Length Scales in Photopolymers for Additive Manufacturing

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3978 - 4020

Published: March 28, 2024

Photopolymers have been optimized as protective and decorative coating materials for decades. However, with the rise of additive manufacturing technologies, vat photopolymerization has unlocked use photopolymers three-dimensional objects new material requirements. Thus, originally highly cross-linked, amorphous architecture cannot match expectations modern anymore, revealing largely unanswered question how diverse properties can be achieved in photopolymers. Herein, we review microstructural features soft matter should designed implemented to obtain high performance materials. We then translate these findings into chemical design suggestions enhanced printable Based on this analysis, found heterogenization most powerful tool tune photopolymer performance. By combining toolbox analytical characterization, examine current strategies physical (fillers, inkjet printing) (semicrystalline polymers, block copolymers, interpenetrating networks, induced phase separation) put them a scientific context develop roadmap improving diversifying photopolymers'

Language: Английский

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Design and 3D Printing of Polyacrylonitrile‐Derived Nanostructured Carbon Architectures

Small Science, Journal Year: 2024, Volume and Issue: 4(4)

Published: Feb. 27, 2024

Nanostructured carbon materials with designer geometries are of great interest for a wide range energy‐based and environmental applications due to their tunable microstructure, which allows optimized properties performance, as well ability be shaped in complex three‐dimensional (3D) suited targeted applications. However, achieving controllable way preparing nanostructured precise macroscale control has proven challenging. Herein, straightforward approach 3D printing polyacrylonitrile (PAN)‐derived controlled by employing self‐assembling resins liquid crystal display is presented. The correlation between resin composition, parameters, PAN thermal transformation conditions identified using combination thermoanalytical structural techniques. readily transformed into voided microstructure while retaining the original macro‐architecture printed polymer precursor objects. resulting electrically conductive feature nitrogen active sites pyrolysis temperature. This method offers simple produce carbon‐based an arbitrary shape, presenting possibility advantageous characteristics potential both fields energy environment.

Language: Английский

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Microphase Separation 3D Printing of Binary Inorganic Polymer Precursors to Prepare Nanostructured Carbon‐Ceramic Multimaterials

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: 9(13)

Published: April 18, 2024

Abstract Traditionally, combining carbon and ceramic materials has been challenging due to their different chemical physical properties. Despite the development of numerous methodologies for synthesis, these techniques frequently necessitate intricate, multi‐stage protocols specialized equipment. This study introduces a novel approach fabricating nanostructured carbon‐ceramic multimaterials through polymerization‐induced microphase separation 3D printing. By inorganic precursors, polycarbosilane, acrylonitrile (AN) within photocurable resin, heterogeneous composed PAN‐preceramic sacrificial polymer phases are printed. Upon pyrolysis, domains transformed into matrix while thermally decomposed yield nanoscale voids. The utilization synchrotron X‐ray spectroscopy microscopy revealed that phase compositions microstructure resulting multi‐materials significantly influenced by initial composition resins. co‐existence single printed material brought together combination properties from both phases, such as low thermal conductivity ceramics relatively high electrical carbon, along with exceptional resistance. insights microstructure, atomic configuration, property relationships have broad implications multi‐phase hybrid materials.

Language: Английский

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Polymerization Induced Microphase Separation for the Fabrication of Nanostructured Materials

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(44)

Published: July 11, 2023

Abstract Polymerization induced microphase separation (PIMS) is a strategy used to develop unique nanostructures with highly useful morphologies through the of emergent block copolymers during polymerization. In this process, are formed at least two chemically independent domains, where one domain composed robust crosslinked polymer. Crucially, synthetically simple method readily nanostructured materials coveted co‐continuous morphology, which can also be converted into mesoporous by selective etching domain. As PIMS exploits copolymer mechanism, size each tightly controlled modifying precursors, thus providing unparalleled control over nanostructure and resultant mesopore sizes. Since its inception 11 years ago, has been vast inventory advanced for an extensive range applications including biomedical devices, ion exchange membranes, lithium‐ion batteries, catalysis, 3D printing, fluorescence‐based sensors, among many others. review, we provide comprehensive overview summarize latest developments in chemistry, discuss utility wide variety relevant applications.

Language: Английский

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Light‐Mediated Polymerization Catalyzed by Carbon Nanomaterials

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(18)

Published: Nov. 28, 2023

Abstract Carbon nanomaterials, specifically carbon dots and nitrides, play a crucial role as heterogeneous photoinitiators in both radical cationic polymerization processes. These recently introduced materials offer promising solutions to the limitations of current homogeneous systems, presenting novel approach photopolymerization. This review highlights preparation photocatalytic performance these emphasizing their application various techniques, including photoinduced i) free radical, ii) RAFT, iii) ATRP, iv) Additionally, it discusses potential addressing contemporary challenges explores prospects this field. Moreover, particular, exhibit exceptional oxygen tolerance, underscoring significance processes allowing applications such 3D printing, surface modification coatings, hydrogel engineering.

Language: Английский

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3D-printed PEGMA-co-(PNIPAM crosslinked with PEGDA) hydrogels by digital light processing in aqueous media

MRS Communications, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

Language: Английский

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RAFT-mediated thermoplastic material by photopolymerization: Controlling liquid–solid transition for vat photopolymerization in 3D DLP printing

European Polymer Journal, Journal Year: 2023, Volume and Issue: 197, P. 112335 - 112335

Published: July 29, 2023

Language: Английский

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Combination of NIR and UV‐LEDs Enables Physical and Chemical Drying of Aqueous Coating Dispersions as New Green Technology

Applied Research, Journal Year: 2024, Volume and Issue: unknown

Published: May 7, 2024

Abstract Heptamethine based cyanines, namely 1,3,‐trimethyl‐2‐(2‐2[2‐phenylsulfanyl‐3‐[2‐(1,3,3‐trimethyl‐1,3,3‐trithyl‐1,3‐dihydro‐indol‐2‐ylidene)‐ethylidene]cyclohex‐1‐enyl]vinyl)‐3H‐indolium chloride ( S1 ) and 2‐[2‐(2‐chloro‐[2‐[1,1‐dimethyl‐7‐sulfo‐3‐(4‐sulfobutyl)‐1,3‐dihydro‐benzo[e]indol‐2‐ylidene]‐ethylidene]cyclopent‐1‐enyl]vinyl]‐1,1‐dimethyl‐7‐sulfo‐3‐(4‐sulfobutyl)‐1Hbenzo[e]indolium hydroxide, inner salt, triethylammonium salt S2 ), efficiently result in physical drying of an aqueous dispersion comprising a polyurethane binder. possesses water solubility 40 g/L. A high‐intensity near‐infrared‐LED emitting at 820 nm with intensity 1 W/cm 2 served as light source. The cyanine converted the absorbed into heat by internal conversion needing less time compared to conventional drying. Water content after film formation showed then 1%. In second step, ultraviolet (UV) exposure LED 395 resulted semi‐interpenetrating polymer networks crosslinking multifunctional (meth)acrylate operating reactive diluent. Ethyl phenyl(2,4,6‐trimethylbenzoyl)phosphinate ‐L effective UV‐photoinitiator. Furthermore, UV‐exposure together Norrish Type I II photoinitator systems results very efficient bleaching green dried film. This contribution shows for first new photonic hybrid technique describing successful replacement oven‐based process step that generates needed

Language: Английский

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Scalable Macroscopic Engineering from Polymer-Based Nanoscale Building Blocks: Existing Challenges and Emerging Opportunities

Biomacromolecules, Journal Year: 2024, Volume and Issue: 25(11), P. 7058 - 7077

Published: Oct. 29, 2024

Natural materials exhibit exceptional properties due to their hierarchical structures spanning from the nano- macroscale. Replicating these intricate spatial arrangements in synthetic presents a significant challenge as it requires precise control of nanometric features within large-scale structures. Addressing this depends on developing methods that integrate assembly techniques across multiple length scales construct multiscale-structured practical, bulk forms. Polymers and polymer-hybrid nanoparticles, with tunable composition structural versatility, are promising candidates for creating hierarchically organized materials. This review highlights advances scalable nanoscale organization polymer-based building blocks macroscopic structures, including block copolymer self-assembly additive manufacturing, polymer brush nanoparticles capable self-assembling into larger, ordered direct-write colloidal assembly. These offer pathways toward fabrication emergent suited advanced applications such bioelectronic interfaces, artificial muscles, other biomaterials.

Language: Английский

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