【摘要翻译】【Dent Mater-J】甲基丙烯酸乙酯树脂材料的聚合特性
发布于 2005-04-13 · 浏览 1016 · IP 四川四川
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TI: Polymerization characteristics of EMA-based resin.
AU: Saito,-Y
SO: Dent-Mater-J. 2004 Mar; 23(1): 14-8
AB: To explore the feasibility of a new relining material, polymerization characteristics such as peak temperature, setting time, residual monomer, and postpolymerization were examined in ethyl methacrylate (EMA) resins composed of EMA and 4 kinds of EMA/methyl methacrylate (MMA) copolymers with high and low molecular weights and initiated by benzoyl peroxide/N,N-dimethyl-p-toluidine system and compared with those of MMA/PMMA resins. Peak temperature (53.8-71.0 degrees C) and residual monomer (2.56-3.52% after 1 h and 1.57-2.31% after 24 h) of the EMA resins were significantly lower than those of the MMA resins (88.9-93.4 degrees C and 4.61-5.85% after 1 h and 4.09-4.84% after 24 h, respectively). The composition of the copolymers had a significant effect on peak temperature and setting time but no significant effect on residual monomer and postpolymerization. The molecular weight of the copolymers affected peak temperature, setting time and residual monomer significantly. This study suggested that EMA resins are worthy of further evaluation as a relining material.
MESH: *Acrylic-Resins-chemistry; *Biocompatible-Materials-chemistry; *Denture-Liners
MESH: Analysis-of-Variance; Methylmethacrylate-chemistry; Methylmethacrylates-chemistry; Molecular-Structure; Phase-Transition; Polymers-chemistry; Polymethyl-Methacrylate-chemistry; Transition-Temperature
题目：甲基丙烯酸乙酯树脂材料的聚合特性
作 者: Saito,-Y
文章出处: Dent-Mater-J. 2004 Mar; 23(1): 14-8
摘 要：为了探察一种新型软衬材料，研究由甲基丙烯酸乙酯分别与两种分子量水平的甲基丙烯酸乙酯－甲基丙烯酸甲酯（EMA/MMA）共聚物组成，过氧化苯甲酰－N-N二甲基对甲苯胺引发的甲基丙烯酸乙酯(EMA)树脂材料的聚合特性：热处理温度，恒温时间，残留单体量，后聚合（？）；并与聚甲基丙烯酸甲酯树脂比较。EMA树脂的热处理温度 (53.8-71.0 degrees C)，残留单体量(2.56-3.52% after 1 h and 1.57-2.31% after 24 h)均明显低于MMA树脂的热处理温度(88.9-93.4 degrees C）残留单体量（4.61-5.85% after 1 h and 4.09-4.84% after 24 h）。共聚物的成分对热处理温度和恒温时间有明显影响，对残留单体量和后聚合无明显影响。共聚物分子量对热处理温度，恒温时间，和残留单体量有显著影响。本研究表明：EMA树脂作为软衬材料值得进一步的评估。
版权声明：本文文字内容归丁香园网站（ http://www.dxy.cn ）及本人所有，未经网站书面许可，请勿转载或摘编
AU: Saito,-Y
SO: Dent-Mater-J. 2004 Mar; 23(1): 14-8
AB: To explore the feasibility of a new relining material, polymerization characteristics such as peak temperature, setting time, residual monomer, and postpolymerization were examined in ethyl methacrylate (EMA) resins composed of EMA and 4 kinds of EMA/methyl methacrylate (MMA) copolymers with high and low molecular weights and initiated by benzoyl peroxide/N,N-dimethyl-p-toluidine system and compared with those of MMA/PMMA resins. Peak temperature (53.8-71.0 degrees C) and residual monomer (2.56-3.52% after 1 h and 1.57-2.31% after 24 h) of the EMA resins were significantly lower than those of the MMA resins (88.9-93.4 degrees C and 4.61-5.85% after 1 h and 4.09-4.84% after 24 h, respectively). The composition of the copolymers had a significant effect on peak temperature and setting time but no significant effect on residual monomer and postpolymerization. The molecular weight of the copolymers affected peak temperature, setting time and residual monomer significantly. This study suggested that EMA resins are worthy of further evaluation as a relining material.
MESH: *Acrylic-Resins-chemistry; *Biocompatible-Materials-chemistry; *Denture-Liners
MESH: Analysis-of-Variance; Methylmethacrylate-chemistry; Methylmethacrylates-chemistry; Molecular-Structure; Phase-Transition; Polymers-chemistry; Polymethyl-Methacrylate-chemistry; Transition-Temperature
题目：甲基丙烯酸乙酯树脂材料的聚合特性
作 者: Saito,-Y
文章出处: Dent-Mater-J. 2004 Mar; 23(1): 14-8
摘 要：为了探察一种新型软衬材料，研究由甲基丙烯酸乙酯分别与两种分子量水平的甲基丙烯酸乙酯－甲基丙烯酸甲酯（EMA/MMA）共聚物组成，过氧化苯甲酰－N-N二甲基对甲苯胺引发的甲基丙烯酸乙酯(EMA)树脂材料的聚合特性：热处理温度，恒温时间，残留单体量，后聚合（？）；并与聚甲基丙烯酸甲酯树脂比较。EMA树脂的热处理温度 (53.8-71.0 degrees C)，残留单体量(2.56-3.52% after 1 h and 1.57-2.31% after 24 h)均明显低于MMA树脂的热处理温度(88.9-93.4 degrees C）残留单体量（4.61-5.85% after 1 h and 4.09-4.84% after 24 h）。共聚物的成分对热处理温度和恒温时间有明显影响，对残留单体量和后聚合无明显影响。共聚物分子量对热处理温度，恒温时间，和残留单体量有显著影响。本研究表明：EMA树脂作为软衬材料值得进一步的评估。
版权声明：本文文字内容归丁香园网站（ http://www.dxy.cn ）及本人所有，未经网站书面许可，请勿转载或摘编
最后编辑于 2005-04-13 · 浏览 1016
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