Inhibition effect of N,N-diglycidyl-4-glycidyloxy aniline on photosensitized cationic polymerization of formulations involving resorcinol diglycidyl ether and poly(propylene glycol)diglycidyl ether

Harikrishna, R.

doi:10.1016/j.jphotochem.2015.02.001

Cited by 5 publications

(3 citation statements)

References 37 publications

(61 reference statements)

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“…Photocalorimetry studies were conducted in order to estimate the conversion of the curing reaction and the polymerization rate. The kinetics were determined following the method reported by Harikrishna …”

Section: Methodsmentioning

confidence: 99%

“…The kinetics were determined following the method reported by Harikrishna. 44 Samples were reprocessed in Collin P200E compression molding machine under the following conditions: (1) preheating the mold for 2 min at 140 °C; Scanning electronic microscopy (SEM) was performed using a TM3030 Plus (Hitachi) with an acceleration voltage of 15 kV. Prior to imaging, the samples were coated in a Sputter Coater Microscience Division SC500 for 30 s at 15−20 mA.…”

Section: ■ Introductionmentioning

confidence: 99%

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3D Printing of Vinylogous Urethane-Based Methacrylic Covalent Adaptable Networks by Vat Photopolymerization

Ballester-Bayarri,

Pascal,

Ayestaran

et al. 2024

ACS Appl. Polym. Mater.

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Covalent adaptable networks (CANs) have the potential to combine the excellent mechanical properties of traditional thermoset materials with the reprocessability of traditional thermoplastics. However, the processing of CANs using common techniques for thermoplastics has proven challenging. In this work, the 3D printing of reprocessable CANs with controlled shape is reported using vat photopolymerization (VP). Using a vinylogous urethane-containing methacrylic cross-linker, a series of resins containing nonreactive and reactive diluents are described. The resin viscosity can be easily tuned by the relative amount of diluent to functional cross-linker such that the viscosity of commercial resins can be easily achieved. By studying the curing kinetics using Jacob's equation, optimal printing conditions are found that allow for highresolution printing with limited shrinkage. In addition, due to the presence of dynamic bonds in the final material, it is shown that the final printed piece can be reprocessed at high temperatures and can even be recycled into a second-generation resin that can be reprinted.

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Section: Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

3D Printing of Vinylogous Urethane-Based Methacrylic Covalent Adaptable Networks by Vat Photopolymerization

Ballester-Bayarri,

Pascal,

Ayestaran

et al. 2024

ACS Appl. Polym. Mater.

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“…19. In particular, amines were reported as effective inhibitors of the cationic polymerization of epoxy resins [102][103][104]. Water and alcohols are also commonly reported as retarder of cationic polymerization [105,106].…”

Section: Page 12 Of 163mentioning

confidence: 99%

Control of reactions and network structures of epoxy thermosets

Vidil¹,

Tournilhac²,

Musso

et al. 2016

Progress in Polymer Science

282

252

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Recent advances in macromolecular chemistry have revolutionized the way we perceive the synthesis of polymers. Polymerization, to be modern, must be "controlled", which usually means capable of producing macromolecules of well-defined structure. The purpose of this review is to examine how the chemistry of epoxy resins, an almost century-old chemistry, is also involved in this movement. Epoxy resins are characterized by both the flexibility of implementation and the qualities of the polymers obtained. Key materials in health-, mobility-and energy related technologies, these resins are heavily present in high-performance composites, electronic boards, adhesives and coatings. Currently, a large number of resins and hardeners are available on the market or described in the literature and an interesting point is that almost any combination of the two is possible. Common to all these recipes and processes is that a liquid (or soluble) resin at some point becomes insoluble and solid. It is very important to know how to manage this transition, physically known as the gel point, as it is the point after which the shape of the object is irreversibly set. Taking into account the variety of epoxy polymerization processespolyaddition, anionic or cationic polymerization-we detail a number of methods to program the occurrence of the gel point and how this type of control affects the structure of the growing network.

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Thiopyrans and Their Benzo Derivatives

Candeias

Efimov

2022

Comprehensive Heterocyclic Chemistry IV

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Inhibition effect of N,N-diglycidyl-4-glycidyloxy aniline on photosensitized cationic polymerization of formulations involving resorcinol diglycidyl ether and poly(propylene glycol)diglycidyl ether

Cited by 5 publications

References 37 publications

3D Printing of Vinylogous Urethane-Based Methacrylic Covalent Adaptable Networks by Vat Photopolymerization

3D Printing of Vinylogous Urethane-Based Methacrylic Covalent Adaptable Networks by Vat Photopolymerization

Control of reactions and network structures of epoxy thermosets

Thiopyrans and Their Benzo Derivatives

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