Water sorption and dynamic mechanical properties of dentin adhesives with a urethane-based multifunctional methacrylate monomer.
Water sorption and dynamic mechanical properties of dentin adhesives with a urethane-based multifunctional methacrylate monomer.
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DOI：
10.1016/j.dental.2009.07.010
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发表时间：
2009-12
期刊：
影响因子：
5
通讯作者：
Spencer, Paulette
中科院分区：
文献类型：
--
作者：
Park, Jong-Gu;Ye, Qiang;Topp, Elizabeth M.;Misra, Anil;Spencer, Paulette
关键词：
我们之前的研究显示了一种新型的氨基甲酸酯连接的三甲基丙烯酸酯单体的合成和表征，用于牙本质粘接剂中的共聚单体。这项工作的目的是进一步研究含有新型单体的牙本质粘结剂的性能，特别是交联网络的吸水性和粘弹性行为。牙本质粘结剂由2，2-双[4-(2-羟基-3-甲基丙烯酰氧基丙氧基)苯基]丙烷(双GMA)、甲基丙烯酸羟乙酯(HEMA)和一种新型的带有氨酯键groups-1，1，1-tri-[4-(methacryloxyethylaminocarbonyloxy)-phenyl]ethane的多功能甲基丙烯酸酯(MPE)组成，在有水或无水的条件下进行了光聚合。通过动态力学分析(DMA)对胶粘剂的转化率(DC)、粘度、吸水性/溶解性进行了表征，并与双GMA/HEMA对照胶粘剂进行了比较。无论是否有水，实验粘合剂都表现出与对照组相当的DC和溶解度。所有实验胶粘剂的吸水率均低于对照组，δ峰高度低于对照组，橡胶弹性模数高于对照组。与对照组相比，含有新型多功能甲基丙烯酸酯的牙本质粘结剂表现出更好的动态热机械性能和吸水率，而不影响DC和溶解性。因此，当MPE作为甲基丙烯酸酯牙本质粘结剂的一种成分时，可以在口腔潮湿的环境中提供更好的耐用性。
Our previous study showed the synthesis and characterization of a novel urethane-linked trimethacrylate monomer for use as a co-monomer in dentin adhesives. The objective of this work was to further investigate the performance of dentin adhesives containing a new monomer, with particular emphasis on the water sorption and visco-elastic behavior of the crosslinked networks. Dentin adhesives contained 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy) phenyl]-propane (BisGMA), 2-hydroxyethyl methacrylate (HEMA), and a new multifunctional methacrylate with urethane-linked groups-1,1,1-tri-[4-(methacryloxyethylaminocarbonyloxy)-phenyl]ethane (MPE) and were photo-polymerized in the presence or absence of water. Adhesives were characterized with regard to degree of conversion (DC), viscosity, water sorption/solubility, and via dynamic mechanical analysis (DMA) and compared with BisGMA/HEMA controls. The experimental adhesives exhibited DC and solubility comparable to that of the control, regardless of the presence or absence of water. All the experimental adhesives tested showed less water sorption, lower tan δ peak heights, and higher rubbery modulus than the control. Dentin adhesives containing a new multifunctional methacrylate showed better dynamic thermomechanical properties and water sorption relative to controls, without compromising DC and solubility. Thus, MPE, when included as a component of methacrylate dentin adhesives, may provide enhanced durability in the moist environment of the mouth.
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影响因子：
14
作者：
Ito, S;Hashimoto, M;Pashley, DH
通讯作者：
Pashley, DH
影响因子：
5
作者：
Sideridou, Irini D.;Karabela, Maria M.;Vouvoudi, Evagelia Ch.
通讯作者：
Vouvoudi, Evagelia Ch.
DOI：
10.1002/jbm.b.31095
发表时间：
2009-02
影响因子：
3.4
作者：
Kostoryz, Elisabet L.;Dharmala, Kiran;Ye, Qiang;Wang, Yong;Huber, Jesse;Park, Jong-Gu;Snider, Grant;Katz, J. Lawrence;Spencer, Paulette
通讯作者：
Spencer, Paulette
DOI：
10.1002/jbm.b.20022
发表时间：
2004-02-15
影响因子：
3.4
作者：
Lee, JK;Choi, JY;Sakaguchi, RL
通讯作者：
Sakaguchi, RL
影响因子：
5
作者：
Mesquita, Renata V.;Geis-Gerstorfer, Juergen
通讯作者：
Geis-Gerstorfer, Juergen