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Synthesis and evaluation of N,N-dimethyl-N′,N′-di[2-(methylacryloyl)-ethoxycarbnylethyl] propyldiamine as a coinitiator

Paper ID Volume ID Publish Year Pages File Format Full-Text
28451 44075 2006 5 PDF Available
Title
Synthesis and evaluation of N,N-dimethyl-N′,N′-di[2-(methylacryloyl)-ethoxycarbnylethyl] propyldiamine as a coinitiator
Abstract

The common diluent and coinitiator for current dental resin composite were triethylene glycol dimethylacrylate (TEGDMA) and ethyl-4-dimethylaminobenzoate (EDMAB), respectively. In this study, a polymerisable coinitiator N,N-dimethyl-N′,N′-di[2-(methylacryloyl)-ethoxycarbnylethyl] propyldiamine (DMPDA) was synthesized via Michael-Addition reaction. A mixture of 2,2-bis[4-(2-hydroxy-3-methacryloxy propoxy)phenyl]-propane (Bis-GMA)/TEGDMA/camphorquinone (CQ) (75%:25%:0.5% w/w/w) with different coinitiators (i.e. DMPDA, EDMAB or 2-(dimethylamine)ethyl methacrylate (DMEM)) and concentrations were photopolymerized. The kinetics was monitored by real time infrared spectroscopy (RT-IR) and the mechanical properties were measured by dynamic mechanical analyzer (DMA). The results indicated that both the double bond conversion and the rate of polymerization of the resin mixtures increased as increasing the concentration of the DMPDA but were lower than that of EDMAB and DMEM at the same concentration. The modulus and Tg of the cured samples were very close. Water sorption and solubility of the samples were almost the same. It was potential to be used as a coinitiator for dental composite.

Keywords
Coinitiator; Dental composite; Michael-Addition reaction; Polymerizable amine; Photopolymerization
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Synthesis and evaluation of N,N-dimethyl-N′,N′-di[2-(methylacryloyl)-ethoxycarbnylethyl] propyldiamine as a coinitiator
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 183, Issues 1–2, 30 September 2006, Pages 154–158
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us