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Photo-crosslinking polymerization to prepare polyanhydride/needle-like hydroxyapatite biodegradable nanocomposite for orthopedic application
Alternative TitleMater. Lett.
Li, HY; Chen, YF; Xie, YS
2003-06-01
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume57Issue:19Pages:2848-2854
AbstractThe biodegradable nanocomposite of poly(methacrylated pyromellitylimidoalanine) (PM(PMA-ala)) and hydroxyapatite (HAp) was prepared by dispersing nanosized needle-like HAp particles prepared by homogeneous precipitation under hydrothermal condition into the crosslinked PM(PMA-ala) network via in-situ photo-polymerization. The conversion of carbon carbon double bonds of multifunctional anhydride monomers after the heat treatment can be over 90%, and the HAp needles are distributed homogeneously in the PM(PMA-ala) crosslinking network. By increasing the content of HAp, the mechanical properties of HAp/PM(PMA-ala) nanocomposite is improved two to three times those of PM(PMA-ala) itself. Furthermore, in contrast with PM(PMA-ala), the nanocomposite HAp/PM(PMA-ala) has higher modulus retention and lower mass loss at the same degradation time, and this tendency will be enhanced as the increase of the content of HAp. (C) 2003 Published by Elsevier Science B.V.; The biodegradable nanocomposite of poly(methacrylated pyromellitylimidoalanine) (PM(PMA-ala)) and hydroxyapatite (HAp) was prepared by dispersing nanosized needle-like HAp particles prepared by homogeneous precipitation under hydrothermal condition into the crosslinked PM(PMA-ala) network via in-situ photo-polymerization. The conversion of carbon carbon double bonds of multifunctional anhydride monomers after the heat treatment can be over 90%, and the HAp needles are distributed homogeneously in the PM(PMA-ala) crosslinking network. By increasing the content of HAp, the mechanical properties of HAp/PM(PMA-ala) nanocomposite is improved two to three times those of PM(PMA-ala) itself. Furthermore, in contrast with PM(PMA-ala), the nanocomposite HAp/PM(PMA-ala) has higher modulus retention and lower mass loss at the same degradation time, and this tendency will be enhanced as the increase of the content of HAp. (C) 2003 Published by Elsevier Science B.V.
KeywordBiodegradable Nanocompqsite Hydroxyapatite Needle-like Polymer In-situ Polymerization
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/S0167-577X(02)01386-1
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCOMPOSITES
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000183268500015
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5325
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Li, HY,Chen, YF,Xie, YS. Photo-crosslinking polymerization to prepare polyanhydride/needle-like hydroxyapatite biodegradable nanocomposite for orthopedic application[J]. MATERIALS LETTERS,2003,57(19):2848-2854.
APA Li, HY,Chen, YF,&Xie, YS.(2003).Photo-crosslinking polymerization to prepare polyanhydride/needle-like hydroxyapatite biodegradable nanocomposite for orthopedic application.MATERIALS LETTERS,57(19),2848-2854.
MLA Li, HY,et al."Photo-crosslinking polymerization to prepare polyanhydride/needle-like hydroxyapatite biodegradable nanocomposite for orthopedic application".MATERIALS LETTERS 57.19(2003):2848-2854.
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