α-Fluoroacrylates: synthesis, properties and use

Boguslavskaya, L. S.; Panteleeva, I. Yu.; Морозова, Т. В.; Карташов, А. В.; Chuvatkin, N. N.

doi:10.1070/rc1990v059n09abeh003563

Cited by 29 publications

(18 citation statements)

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“…Instead, we devised α‐monofluoroacrylate systems. The energy gap between the SOMO and HOMO levels of these monomers is reduced and it becomes possible to polymerize them using a free radical initiator 74,75,76. The homopolymer of 2‐[4‐(2‐hydroxyhexafluoro‐isopropyl)cyclohexane]hexafluoroisopropyl‐α‐monofluoroacrylate (FA) was prepared by AIBN‐initiated polymerization and showed a lower absorption coefficient of 1.7 µm −1 at 157 nm, than poly(1,4‐AF) 68…”

Section: Fluorinated Polymer Resists For 157 Nm Lithographymentioning

confidence: 99%

Flow cytometry detection of Shiga toxins in the blood from children with hemolytic uremic syndrome

Tazzari¹,

Ricci²,

Carnicelli³

et al. 2004

Cytometry Part B Clinical

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Results: The method was quick (3 h), sensitive (femtomoles), and capable of detecting both Stxs. The presence of Stxs was detected on PMNs from six patients with HUS: four patients had serologic or microbiological evidence of STEC infection, whereas the other two patients had no evidence of STEC infection when employing the standard diagnostic methods. Conclusions: The method described is rapid, simple, and based on commercially available reagents, and it might be more sensitive than the standard methods for diagnosis of STEC infection. It also allows the detection of Stxs in blood, a key step to monitor the pathogenesis of HUS.

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Section: Fluorinated Polymer Resists For 157 Nm Lithographymentioning

confidence: 99%

Flow cytometry detection of Shiga toxins in the blood from children with hemolytic uremic syndrome

Tazzari¹,

Ricci²,

Carnicelli³

et al. 2004

Cytometry Part B Clinical

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“…Various synthetic schemes have been designed for specific a-fluoroacrylonitriles [4,[9][10][11]. The most general route is based on the Horner-Wadsworth-Emmons (HWE) reaction of a cyanofluoromethyl-substituted phosphonate with carbonyl compounds [7,8,12].…”

Section: Introductionmentioning

confidence: 99%

α-Fluoroacrylonitriles: Horner–Wittig synthesis and conversion into 2-fluoroallylamines and C-(1-fluorovinyl)nitrones

Steenis

Nieuwendijk

Gen

2004

Journal of Fluorine Chemistry

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“…The schematic representation is shown by the energy level diagram ( Figure 5). The 2-fluoroacrylates readily undergo free radical polymerization 7,8 . The fluoro substituent when present on the double bond is a π-donor and drives the energy of the SOMO to a level sufficient for propagation.…”

Section: Acrylate Systemmentioning

confidence: 99%

Fluoropolymer resists for 157 nm lithography

Vohra¹,

Liu²,

Douki³

et al. 2003

Advances in Resist Technology and Processing XX

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Fluoropolymers have been shown to be one of the best materials for high transparency of 157 nm wavelength radiation. Both resists and pellicles are being designed from such materials. One of our approaches to improved transparency for 157 nm resists is based upon fluorinated variations of polymethacrylate and polyhydroxystyrene derivatives. Lithographic studies were carried out on experimental resist platforms using 157 nm and 248 nm steppers, and it was shown that, after selective modification, it is possible to use conventional resist backbones, such as acrylic or styrenic, in the design of single-layer resists for 157 nm lithography. It has been demonstrated in our studies that 157 nm absorbance of these materials can be as low as 1.5-2.0 µm -1 . Another approach to 157 nm resist design is based upon fluorinated backbone variations. Research will be described focusing on several new monomers having fluorine functions such as -F and -CF 3 groups near a polymerizable double bond to improve transparency at 157 nm and to raise the resist glass transition temperature compared to their hydrocarbon analogues. Due to the lower electron density of the double bond, these monomers can be copolymerized with electron-rich vinyl monomers. As an extension to this strategy, we are synthesizing novel fluoropolymers having partially fluorinated monocyclic structures with radical cyclo-polymerization. These polymers have the C-F bond on the polymer main chain and also possess acid labile groups as part of a ring structure to eliminate degassing. In order to further enhance the transparency of these cyclic polymers at 157 nm, we have eliminated the carbonyl group. The cyclic nature of the polymer will result in a high glass transition temperature.

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α-Fluoroacrylates: synthesis, properties and use

Cited by 29 publications

References 0 publications

Flow cytometry detection of Shiga toxins in the blood from children with hemolytic uremic syndrome

Flow cytometry detection of Shiga toxins in the blood from children with hemolytic uremic syndrome

α-Fluoroacrylonitriles: Horner–Wittig synthesis and conversion into 2-fluoroallylamines and C-(1-fluorovinyl)nitrones

Fluoropolymer resists for 157 nm lithography

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