Reconfigurable surface patterns on covalent adaptive network polymers using nanoimprint lithography

Cox, Lewis M.; Sowan, Nancy; Nair, Devatha P.; Xiao, Jianliang; Bowman, Christopher N.; Ding, Yifu

doi:10.1016/j.polymer.2014.09.024

Cited by 22 publications

(17 citation statements)

References 27 publications

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“…In contrast, Ding and coworkers exploited the potential of the LAP for nanoimprinting. Specifically, they showed ≈400 nm features could be readily introduced on the LAP via contact printing and light induced stress relaxation (Figure c) . The impact of imprinting pressure and light exposure time on the structural evolution was investigated.…”

Section: Materials Innovations Via Covalent Bond Exchangementioning

confidence: 99%

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

et al. 2017

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Dynamic covalent polymer networks have long been recognized. With the initial focus on the unintended impact of dynamic covalent linkages on the viscoelasticity of commercial rubbers, efforts in modern times have transitioned into designing dynamic covalent polymer networks with unique adaptive properties. Whereas self-healing and thermoset reprocessing have been the primary motivations for studying dynamic covalent polymer networks, the recent discovery of the vitrimeric rheological behavior and solid-state plasticity for this type of material have opened up new opportunities in material innovations. This, coupled with the revelation of the dynamic characteristics of commercially relevant polymer building blocks such as esters and urethanes, suggests a promising future for this class of materials.

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Section: Materials Innovations Via Covalent Bond Exchangementioning

confidence: 99%

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

et al. 2017

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“…If the functions of sensing and actuation are added to this list, the new material is considered a smart material [19]. Since the 1990s, a lot of research efforts have been devoted to the development [20] [21] [22] and industrial application [23] [24] of smart materials. Examples of some well-known smart materials are piezoelectric polymers [25], piezoelectric ceramics [26], shape memory alloys S. Rebouillat, F. Pla Journal of Biomaterials and Nanobiotechnology [27], electro-active polymers [28], covalent adaptive network polymers [22] and electrorheological and magneto rheological fluids [29].…”

Section: More Centrallymentioning

confidence: 99%

A Review: On Smart Materials Based on Some Polysaccharides; within the Contextual Bigger Data, Insiders, “Improvisation” and Said Artificial Intelligence Trends

Rebouillat¹,

Pla²

2019

JBNB

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Smart Materials are along with Innovation attributes and Artificial Intelligence among the most used "buzz" words in all media. Central to their practical occurrence, many talents are to be gathered within new contextual data influxes. Has this, in the last 20 years, changed some of the essential fundamental dimensions and the required skills of the actors such as providers, users, insiders, etc.? This is a preliminary focus and prelude of this review. As an example, polysaccharide materials are the most abundant macromolecules present as an integral part of the natural system of our planet. They are renewable, biodegradable, carbon neutral with low environmental, health and safety risks and serve as structural materials in the cell walls of plants. Most of them are used, for many years, as engineering materials in many important industrial processes, such as pulp and papermaking and manufacture of synthetic textile fibres. They are also used in other domains such as conversion into biofuels and, more recently, in the design of processes using polysaccharide nanoparticles. The main properties of polysaccharides (e.g. low density, thermal stability, chemical resistance, high mechanical strength…), together with their biocompatibility, biodegradability, functionality, durability and uniformity, allow their use for manufacturing smart materials such as blends and composites, electroactive polymers and hydrogels which can be obtained 1) through direct utilization and/or 2) after chemical or physical modifications of the polysaccharides. This paper reviews recent works developed on polysaccharides, mainly on cellulose, hemicelluloses, chitin, chitosans, alginates, and their by-products (blends and composites), with the objectives of manufacturing smart materials.

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“…UV nanoimprint lithography (UV-NIL) has been extensively investigated due to the fabrication of not only nanopatterning for microelectronics but also functional materials for micro-electro-mechanical systems (MEMS) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. UV-NIL utilizes UV light to cure a photoresist which was pressed using a patterned master mold to obtain the patterned structures.…”

Section: Introductionmentioning

confidence: 99%

Secondary Patternable UV-Imprinted Reworkable Resin by Additional Photoirradiation

Okamura

Tachi

2019

J. Photopol. Sci. Technol.

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The fabrication of secondary patterns on UV-imprinted resins was successfully achieved using a reworkable monomer. A methacrylate monomer, which has both an epoxy moiety and a thermally-cleavable tertiary ester moiety in a molecule, was employed as the reworkable monomer. UV imprinting of the reworkable monomer was carried out in the presence of a photoradical initiator by irradiation at 365 nm to fabricate micrometer-order patterns. Secondary patterning was carried out using the patterned resin containing a photoacid generator by irradiation at 254 nm through a photomask followed by baking at 110 o C for 1 min without development. The pattern formation is due to the acid-catalyzed decomposition of the tertiary ester linkages in the cured reworkable monomer measured by in-situ FT-IR and mass measurements.

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Reconfigurable surface patterns on covalent adaptive network polymers using nanoimprint lithography

Cited by 22 publications

References 27 publications

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations

A Review: On Smart Materials Based on Some Polysaccharides; within the Contextual Bigger Data, Insiders, “Improvisation” and Said Artificial Intelligence Trends

Secondary Patternable UV-Imprinted Reworkable Resin by Additional Photoirradiation

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