Photoinitiated cationic polymerization using a novel phenacyl anilinium salt

Kasapoglu, Fatmanur; Önen, Aysęn; Bıçak, Niyazi; Yaǧcı, Yusuf

doi:10.1016/s0032-3861(02)00029-0

Cited by 41 publications

(46 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was previously shown that depending on the counter anion, PDA initiates the polymerization of appropriate monomers via cationic, [30,31] zwitterionic, [32] and free radical [32] mechanisms. The following mechanism for the initiation of the free radical polymerization of MMA by PDA was suggested as illustrated in Scheme 1.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Clay‐PMMA Nanocomposites by Photoinitiated Radical Polymerization Using Intercalated Phenacyl Pyridinium Salt Initiators

Nese

Şen

Taşdelen

et al. 2006

Macro Chemistry & Physics

Self Cite

View full text Add to dashboard Cite

Summary: In situ synthesis of poly(methyl methacrylate) (PMMA) nanocomposites by photopolymerization using organophilic montmorillonite (MMT) as the layered clay is reported. MMT clay was ion exchanged with N‐phenacyl, N,N‐dimethylanilinium hexafluoro phosphate (PDA) which acts as both suitable intercalant‐ and photo‐initiator. These modified clays were then dispersed in methyl methacrylate (MMA) monomer in different loading degrees to carry out the in situ photopolymerization. Intercalation ability of the photoinitiator and exfoliated nanocomposite structure were evidenced by both X‐ray diffraction (XRD) spectroscopy and transmission electron microscopy (TEM). Thermal properties and morphologies of the resultant nanocomposites were also studied.Schematic representation of clay‐PMMA nanocomposites by photoinitiated radical polymerization.imageSchematic representation of clay‐PMMA nanocomposites by photoinitiated radical polymerization.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The dark pink solution was filtered to remove KBr, which was formed during the reaction. Then, the solvent was removed on a rotary evaporator, leaving Nphenacyl, N,N-dimethylanilinium hexafluoro phosphate [30] (PDA) as a tan solid. The product was recrystallized twice from ethanol solution.…”

Section: Synthesis Of N-phenacyl Nn-dimethylanilinium Hexafluorophomentioning

confidence: 99%

Clay‐PMMA Nanocomposites by Photoinitiated Radical Polymerization Using Intercalated Phenacyl Pyridinium Salt Initiators

Nese

Şen

Taşdelen

et al. 2006

Macro Chemistry & Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…The chief photoinitiators used in cationic polymerizations are onium salts . The good thermal stability and excellent latency of onium salt photoinitiators in the presence of highly reactive multifunctional monomers at ambient temperature has made these salts very attractive for practical applications in photocurable formulations . Onium salt photoinitiators are ionic compounds that are composed of an organic cation paired with an inorganic anion.…”

Section: Cationic Photoinitiatorsmentioning

confidence: 99%

Cationic UV-Curing: Technology and Applications

Sangermano

Razza

Crivello

2014

Macromol. Mater. Eng.

239

237

View full text Add to dashboard Cite

This paper reviews the field of cationic UV‐curing and reports recent progress made in understanding the fundamental chemistry and in technology applications. Radiation curing technologies are expanding rapidly on an industrial scale and interest in cationic photopolymerizations has advanced rapidly. In particular, the cationic UV‐curing process presents additional benefits, including: the absence of air inhibition, a “dark‐curing” reaction, low levels of toxicity and irritation, and a lower volume shrinkage during photopolymerization. In this review, a large number of papers and patents are reviewed and critically discussed specifically with respect to the application of cationic UV‐curing technology in the field of coatings, composites, adhesives, and inks.

show abstract

“…Besides iodonium and sulfonium salts, phosphonium [291][292][293][294][295], pyridinium [296][297][298][299][300][301][302] or anilinium [303,304] salts have been reported as effective photoinitiators for the cationic polymerization of epoxy. Most of them are aryl onium salts.…”

Section: Photolatent Onium Salts Initiatorsmentioning

confidence: 99%

Control of reactions and network structures of epoxy thermosets

Vidil¹,

Tournilhac²,

Musso

et al. 2016

Progress in Polymer Science

271

240

View full text Add to dashboard Cite

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.

show abstract

Photoinitiated cationic polymerization using a novel phenacyl anilinium salt

Cited by 41 publications

References 17 publications

Clay‐PMMA Nanocomposites by Photoinitiated Radical Polymerization Using Intercalated Phenacyl Pyridinium Salt Initiators

Clay‐PMMA Nanocomposites by Photoinitiated Radical Polymerization Using Intercalated Phenacyl Pyridinium Salt Initiators

Cationic UV-Curing: Technology and Applications

Control of reactions and network structures of epoxy thermosets

Contact Info

Product

Resources

About