Investigation of 3,4-methylenedioxybenzene methoxyl methacrylate as coinitiator and comonomer for dental application
Investigation of 3,4-methylenedioxybenzene methoxyl methacrylate as coinitiator and comonomer for dental application
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DOI：
10.1002/jbm.b.30754
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发表时间：
2007-08-01
影响因子：
3.4
通讯作者：
Nie, Jun
中科院分区：
文献类型：
--
作者：
Shi, Suqing;Nie, Jun
本文合成了3，4-亚甲二氧基苯甲氧基甲基丙烯酸酯（MDBMM），以取代三甘醇二甲基丙烯酸酯（TEGDMA）和叔胺作为牙科树脂的共聚单体和共引发剂。分别选择聚氨酯二甲基丙烯酸酯（UDMA）作为单体。采用水平样品保持器的真实的实时近傅里叶变换红外光谱（FTIR）和动态力学分析仪（DMA）分别研究了其动力学和力学性能。结果表明，在UDMA/TEGDMA/CQ（70/30/0.5wt%）体系中加入MDBMM作为共引发剂，可提高聚合速率。当与市售可聚合胺甲基丙烯酸2-（N，N-二甲基氨基）乙酯（I）MEM相比时，MDBMM显示出相当的引发反应性，并在人体温度（37 ℃）附近产生更高的模量。MDBMM作为共聚单体导致比TEGDMA稍高的最终双键转化率，TEGDMA在37 ℃左右带来更高的模量。因此，MDBMM可用作牙科应用的潜在共引发剂和共聚单体。(C)2007 Wiley Periodicals，Inc.
In this study, 3,4-methylenedioxybenzene methoxyl methacrylate (MDBMM) was synthesized for the purpose of replacing both triethylene glycol dimethacrylate (TEGDMA) and tertiary amine, which was usually used as a comonomer and coinitiator for dental resin,. respectively. Urethane dimethacrylate (UDMA) was chosen as a monomer. Real time near Fourier transform infrared (FTIR) with a horizontal sample holder and dynamic mechanical analyzer (DMA) were used to study the kinetics and mechanical properties, respectively. The results showed that the addition of MDBMM as a coinitiator in UDMA/TEGDMA/CQ (70/30/ 0.5 wt %) system led to the increase of the rate of polymerization. When compared with the commercial polymerizable amine, 2-(N,N-dimethyl amino)ethyl methacrylate (I)MEM), MDBMM showed comparable initiating reactivity and led to higher modulus around human body temperature (37 degrees C). MDBMM as a comonomer resulted in slightly higher final double bond conversion than that of TEGDMA, which brought higher modulus around 37 degrees C. Therefore, MDBMM can be used as both potential coinitiator and comonomer for dental application. (C) 2007 Wiley Periodicals, Inc.