نتایج جستجو برای: acrylates

تعداد نتایج: 601  

Journal: :Organic & biomolecular chemistry 2012
Ke Chen Sumod A Pullarkat

A palladacycle-catalyzed tandem Heck-intramolecular aza-Michael reaction protocol has been developed for the one-pot synthesis of 1-substituted isoindolines from N-unprotected 2-bromobenzylamines and acrylates with high yields.

Journal: :Angewandte Chemie 2021

Shifting from petrochemical feedstocks to renewable resources can address some of the environmental issues associated with extraction and make plastics production sustainable. Therefore, there is a growing interest in selective methods for transforming abundant into monomers suitable polymer production. Reported herein are one-pot catalytic systems, that active, productive, under mild condition...

Journal: :Macromolecular rapid communications 2009
Chensha Li Chi-Wei Lo Difeng Zhu Chenhui Li Ye Liu Hongrui Jiang

The synthesis of an oriented liquid-crystalline photoresponsive polymer, prepared by polymerization of mono- and di-acrylates, both of which contain azobenzene chromophores, is reported. The prepared free-standing polymer film shows strong reversible photoinduced deformation upon exposure to unpolarized UV light at 366 nm, as a result of an optically induced isomeric change of the azobenzene mo...

2017
Deepak Kumar K. Durga Bhaskar Yamajala Asit B. Samui Shaibal Banerjee

Acryloyl based novel energetic monomers having nitro acrylates and nitro triazole acrylates were synthesized and further used for polymerization. Due to scavanging properties of nitro groups, syntheses of nitro aromatic polymers are not facile at normal conditions. In this regard, we report a simple protocol to synthesize these energetic group embeded acroloyl polymers. These polymers were char...

Journal: :Occupational medicine 2014
G Fremlin J Sansom

We report a case of an allergic skin reaction to ultraviolet-cured acrylates in a windscreen repair worker. The patient presented with a 6 month history of fingertip dryness, vesicles and desquamation. He had worked as a self-employed car windscreen repairer for 19 years. Previous management with vinyl glove protection and treatment with clobetasol propionate ointment had produced little improv...

Journal: :European review for medical and pharmacological sciences 2010
E Sampsonas A Kaparianos V Tzelepi V Zolota K Karkoulias M Tsiamita N Mastronikolis K Spiropoulos

Inhalation of metal dusts and fumes can induce a wide range of respiratory disorders, including granulomatosis, chemical pneumonitis and pulmonary interstitial disease. Laryngeal cancer is the most common cancer of the upper aerodigestive tract. We present a patient with occupational lung disease whose chest CT showed miliary nodular pattern, with concurrent laryngeal cancer who had been engage...

2015

toid, erythematous-vesicular, or urticarial lesions appear on the periphery of and at a distance from the area of the original contact. Histopathology findings are nonspecific. Spongiosis and exocytosis are common findings, although vacuolar degeneration of the basement membrane or epidermal necrolysis is more unusual. Acrylate-induced allergic contact dermatitis usually manifests as eczematous...

Journal: :The journal of physical chemistry. B 2005
Jian Zhou David M Collard Jung O Park Mohan Srinivasarao

In situ photopolymerization of alkyl acrylate monomers in the presence of a nematic fluid provides a cellular matrix of liquid crystalline droplets in which the chemical structure of the encapsulating polymer exerts control over the alignment (anchoring) of the liquid crystalline molecules. Control is obtained by variation of the alkyl side chains and through copolymerization of two dissimilar ...

Journal: :Chemical communications 2010
Takuya Ozawa Hiroaki Horie Takuya Kurahashi Seijiro Matsubara

Intermolecular [2+2+1] cycloaddition which incorporates an alkyne, an isocyanate, and an alkene into a γ-butyrolactam proceeds with nickel catalyst.

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