نتایج جستجو برای: acrylate monomer

تعداد نتایج: 22941  

Journal: :Journal of physics 2023

Abstract Emulsifier-free copolymerizations of 2,2,2-trifluoroethyl 2-methylpropanoate (TFMPA) and methyl acrylate in the presence surface-active commoner, undecylenic acid (UA), were carried out using potassium persulfate (KPS) as initiator. The prepared copolymer emulsions characterized analyzed by FT-IR, 1 H 19 F NMR spectra, TEM, dynamic light scattering (DLS), contact angle testing. results...

2012
Seiichiro Fujisawa Yoshinori Kadoma

We investigated the quantitative structure-activity relationships between hemolytic activity (log 1/H(50)) or in vivo mouse intraperitoneal (ip) LD(50) using reported data for α,β-unsaturated carbonyl compounds such as (meth)acrylate monomers and their (13)C-NMR β-carbon chemical shift (δ). The log 1/H(50) value for methacrylates was linearly correlated with the δC(β) value. That for (meth)acry...

Journal: :The journal of physical chemistry. A 2012
Shi Liu Sriraj Srinivasan Michael C Grady Masoud Soroush Andrew M Rappe

This paper presents a systematic computational study of the mechanism of cyclohexanone-monomer co-initiation in high-temperature homopolymerization of methyl acrylate (MA) and methyl methacrylate (MMA). Previous experimental studies of spontaneous thermal homopolymerization of MA and MMA showed higher monomer conversion in the presence of cyclohexanone than xylene. However, these studies did no...

2017
Miao Sun Chunxiao Yin Yanan Gu Yun Li Zhirong Xin

A series of tertiary amine-based hyperbranched poly(amine-ester)s have been synthesized by Michael addition polymerization of trifunctional monomer, TMEA and difunctional monomer, diacylates in chloroform, and the resultant polymers were subsequently treated with mercaptoethenol or 1-dodecanethiol for improving stability in storage. The caption efficiency of mercaptoethanol is much better than ...

Journal: :Macromolecules 2022

The combination of different monomer classes has been sought after to access a wider range brush copolymers owing their unique properties derived from dense macromolecular structures. Herein, we report the synthesis 2-oxazoline (RAFTOx) containing chain transfer agent at 2-position and its subsequent utilization in reversible addition-fragmentation chain-transfer (RAFT) polymerization. With aim...

Journal: :Coatings 2022

Water-borne polyurethane/acrylate (WPUA) emulsion was prepared through polymerization between vinyl terminated waterborne polyurethane (WPU) and methyl methacrylate (MMA) in this research. Thermogravimetric Analysis (TGA), transmission electron microscopy (TEM), contact angle analysis, particle size distribution analysis were employed to investigate the performance of coatings with various cont...

Journal: :Contact dermatitis 2013
Wietske A Christoffers Pieter-Jan Coenraads Marie-Louise A Schuttelaar

BACKGROUND Acrylates constitute an important cause of occupational contact dermatitis. Isobornyl acrylate sensitization has been reported in only 2 cases. We encountered an industrial process operator with occupational contact dermatitis caused by isobornyl acrylate. OBJECTIVES (i) To investigate whether it is relevant to add isobornyl acrylate to the (meth)acrylate test series. (ii) To repor...

2014
Vinod Kumar Gupta Deepak Pathania Bhanu Priya Amar Singh Singha Gaurav Sharma

Grafting method, through microwave radiation technique is very effective in terms of time consumption, cost effectiveness and environmental friendliness. Via this method, delignified Grewia optiva identified as a waste biomass, was graft copolymerized with methylmethacrylate (MMA) as an principal monomer in a binary mixture of ethyl methacrylate (EMA) and ethyl acrylate (EA) under microwave irr...

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