Development of Non-Shrinkage Composite Resins : Expansible Monomers for Radical Polymerization

无收缩复合树脂的开发：用于自由基聚合的可膨胀单体

• 批准号: 01571071
• 负责人: ARAI Koichi
• 金额: $ 1.47万
• 依托单位: Meikai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01571071/
• 关键词: Expansible monomers; Bicyclic ortho ester; Non-shrinkage composite resins; Radical polymerization; Microspherical inorganic filler; Filler with improved surface; 非収縮性レジン; コンポジットレジン; ラジカル重合; 表面改質フィラ-; 微球状フィラ-

In this study, two kinds of expansible monomers, isophorone and trimethyl hexamethylene diisocyanate containing bicyclic ortho ester structures were synthesized, and various expansible composite resins, which had each expansible monomer/dilute monomers (triethylene glycol dimethacrylate and two mixtures (isophorone diisocyanate or trimethyl hexamethylene diisocyanate : hydroxyethyl methaerylate=2 : 1) ratio and trial microspherical filler with improved surface (75wt%) were prepared. The physical properties of various expansible composite resins were examined, and the following results were obtained.1. In cases of two radical catalysts, tert-butyl peroxy maleic acid・N, N-dihydroxy ethyl-p-toluidine F1-cyclohexyl-5-ethyl barbituric acid-4-acryloxy ethyl trimellitic acid system (BMA catalyst) and benzoyl peroxide-N, N-dihydroxy ethyl-p-toluidine・1-benzyl-5-phenyl barbituric acid・4-acryloxy ethyl trimellitic acid anhydride system (BPO catalyst), setting time of expansible composite resins were tended to behind time and to decrease compressive and tensile strength in proportion to increase additive volume (more than 20wt%) of expansible monomer respectively. Therefore, their composite resins had not been become practicable.2. In case of BMA catalyst, composite resins with two expansible monomers (range from 5 to 20 wt%) were tended to behind time and to decrease compressive and tensile strength. However, in case of BPO catalyst, their composite resins had been same setting time and maximum values of compressive and tensile strength of composite resins with expansible monomers (5 or 10 wt%) respectively.In the future, it is necessary that new kinds and additive volume of expansible monomers, catalysts and accelerator are investigated, in order that expansible composite resins become practicable.

本研究合成了两种含有双环原酸酯结构的可膨胀单体异佛尔酮和三甲基六亚甲基二异氰酸酯，以及各种可膨胀复合树脂，其中每种可膨胀单体/稀释单体（三甘醇二甲基丙烯酸酯）和两种混合物（异佛尔酮二异氰酸酯或三甲基六亚甲基二异氰酸酯） 制备了六亚甲基二异氰酸酯:甲基丙烯酸羟乙酯=2:1的比例和具有改进表面的试验微球形填料(75wt%)。对各种可膨胀复合树脂的物理性能进行了考察，得到以下结果： 1．两种自由基催化剂的情况下，过氧化马来酸叔丁基·N,N-二羟基 乙基对甲苯胺F1-环己基-5-乙基巴比妥酸-4-丙烯酰氧基乙基偏苯三酸体系（BMA催化剂）及过氧化苯甲酰-N,N-二羟基乙基对甲苯胺·1-苄基-5-苯基巴比妥酸·4-丙烯酰氧基乙基偏苯三酸酐体系 (BPO催化剂)下，可膨胀复合树脂的凝固时间往往会滞后，并且随着可膨胀单体添加量(超过20wt%)的增加，其压缩强度和拉伸强度分别成比例地降低。因此，它们的复合树脂尚未实用化。 2．在使用 BMA 催化剂的情况下，具有两种可膨胀单体（范围为 5 至 20 wt%）的复合树脂往往会落后于时间并降低 抗压和抗拉强度。然而，在BPO催化剂的情况下，它们的复合树脂的凝固时间和压缩强度和拉伸强度的最大值分别与可膨胀单体(5或10 wt%)的复合树脂相同。未来，有必要研究可膨胀单体、催化剂和促进剂的新种类和添加量，以使可膨胀复合树脂变得实用。

项目成果

新井 浩一他: "無収縮性コンポジットレジンの開発:特に、ラジカル重合型膨張性ベ-スレジンの検討" 歯科材料・器械.

Koichi Arai 等人：“不可收缩复合树脂的开发：特别是自由基聚合型可膨胀基础树脂的考虑”牙科材料和仪器。

新井 浩一 他: "無収縮性コンポジットレジンの開発:特に、ラジカル重合型膨張性ベ-ススレジンの検討" 歯科材料・器械.

Koichi Arai 等人：“不可收缩复合树脂的开发：特别是自由基聚合型可膨胀基础树脂的考虑”牙科材料和仪器。