IR@PKUHSC  > 北京大学口腔医学院
学科主题口腔医学
Synthesis of iodine-containing cyclophosphazenes for using as radiopacifiers in dental composite resin
Zhao, Yuchen1; Lan, Jinle1; Wang, Xiaoyan3; Deng, Xuliang3; Cai, Qing1,2; Yang, Xiaoping1,2
关键词Radiopaque Composite resin Cyclophosphazene Iodine
刊名MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
2014-10-01
DOI10.1016/j.msec.2014.07.050
43页:432-438
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Materials Science, Biomaterials
研究领域[WOS]Materials Science
关键词[WOS]BIOMEDICAL APPLICATIONS ; HIGH-PRESSURE ; POLYMERIZATION ; MONOMERS ; POLYMERS ; HARDNESS ; BLOCKS
英文摘要

In this study, a strategy of using iodine-containing cyclophosphazenes as radiopacifiers for dental composite resin was evaluated. It was hypothesized that cyclophosphazenes bearing both iodine and acrylate group swere able to endow composite resins radiopacity without compromising mechanical properties. The cyclophosphazene compounds were synthesized by subsequently nucleophilic substitution of hexachlorocyclotriphosphazene with hydroxyethyl methacrylate (HEMA) and 4-iodoaniline. Cyclotriphosphazenes containing two different molar ratios of HEMA to 4-iodoaniline (1:5 and 2:4) were obtained, and were identified with H-1 NMR, FT-IR, UV and mass spectroscopy. The iodine-containing cyclophosphazenes were able to dissolve well in bisphenol A glycidyl methacrylate (Bis-GMA)/triethylene glycol dimethacrylate (TEGDMA) resin, and were added at two contents (10 or 15%wt. of the resin). The resins were photo-cured and post-thermal treated before characterizations. The resulting composite resins demonstrated the ability of blocking X-ray. And the addition of HEMA-co-iodoaniline substituted cyclotriphosphazenes caused minor adverse effect on the mechanical properties of the resins because the cyclotriphosphazenes could mix well and react with the resins. The presence of rigid phosphazene rings between resin backbones displayed an effective function of decreasing polymerization shrinkage. In summary, soluble and reactive iodine-containing cyclotriphosphazenes demonstrated advantages over traditional heavy metals or metal oxides in being used as additives for producing radiopaque dental resins. (C) 2014 Elsevier B.V. All rights reserved.

语种英语
WOS记录号WOS:000342529000053
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/59541
Collection北京大学口腔医学院
北京大学口腔医学院_特诊科
作者单位1.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
2.Beijing Univ Chem Technol, Beijing Lab Biomed Mat, Beijing 100029, Peoples R China
3.Peking Univ, Sch & Hosp Stornatol, Dept Geriatr Dent, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Yuchen,Lan, Jinle,Wang, Xiaoyan,et al. Synthesis of iodine-containing cyclophosphazenes for using as radiopacifiers in dental composite resin[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2014,43:432-438.
APA Zhao, Yuchen,Lan, Jinle,Wang, Xiaoyan,Deng, Xuliang,Cai, Qing,&Yang, Xiaoping.(2014).Synthesis of iodine-containing cyclophosphazenes for using as radiopacifiers in dental composite resin.MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,43,432-438.
MLA Zhao, Yuchen,et al."Synthesis of iodine-containing cyclophosphazenes for using as radiopacifiers in dental composite resin".MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 43(2014):432-438.
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