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学科主题: 口腔医学
题名:
Synthesis of iodine-containing cyclophosphazenes for using as radiopacifiers in dental composite resin
作者: 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
发表日期: 2014-10-01
DOI: 10.1016/j.msec.2014.07.050
卷: 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
所属项目编号: 51073016 ; 51373016 ; 2012AA03A203 ; NCET-11-0556
项目资助者: National Natural Science Foundation of China ; National High Technology Research and Development Program of China ; Program for New Century Excellent Talents in University
WOS记录号: WOS:000342529000053
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/59541
Appears in Collections:北京大学口腔医学院_期刊论文

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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:
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.
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