Miscibility, morphology and thermal properties of poly(para-dioxanone)/poly(d,l-lactide) blends
文献类型：期刊论文
| 作者 | Bai, Wei1,2; Zhang, Zhi-ping1; Li, Qing1; Chen, Dong-Liang1; Chen, He-Chun1; Zhao, Na1,2; Xiong, Cheng-Dong1 |
| 刊名 | Polymer international
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 58期号:2页码:183-189 |
| 关键词 | Poly(para-dioxanone) Poly(d,l-lactide) Blends Biomaterial |
| ISSN号 | 0959-8103 |
| DOI | 10.1002/pi.2512 |
| 通讯作者 | Xiong, cheng-dong(xcd1633@yahoo.com.cn) |
| 英文摘要 | Background: poly(para-dioxanone) (ppdo) is a biodegradable polyester with excellent biodegradability, bioabsorbability, biocompatibility and mechanical flexibility. however, its high cost and relatively fast degradation rate have hindered the development of commercial applications. blending with other polymers is a simple and convenient way of modifying the properties of aliphatic polyesters. poly(d,l-lactide) (pdlla) is another polyester that has been extensively studied for biomedical applications due to its biocompatibility and suitable degradation rate. however, to our knowledge, blends of ppdo/pdlla have not been reported in the literature. results: a series of biodegradable polymers were blended by solution co-precipitation of ppdo and pdlla in various blend ratios. the miscibility, morphology and thermal properties of the materials were investigated. dsc curves for all blends revealed two discrete glass transition temperatures which matched the values for pure ppdo and pdlla. sem images of fracture surfaces displayed evidence of phase separation consistent with the dsc results. the contact angles increased with the addition of pdlla. conclusion: ppdo/pdlla blends exhibit two distinct glass transition temperatures that remain nearly constant and correspond to the glass transition temperatures of the homopolymers for all blend compositions, indicating that blends of ppdo and pdlla are immiscible. images of the surface obtained using sem were also suggestive of a two-phase material. the crystallinity of the ppdo phase in the blends was affected by the pdlla content. the mechanical properties of the blends changed dramatically with composition. adding pdlla makes the blends less hydrophilic than ppdo. (c) 2008 society of chemical industry |
| WOS关键词 | IN-VIVO ; CRYSTALLIZATION ; POLY(P-DIOXANONE) ; DEGRADATION ; COPOLYMERS ; COMPOSITE ; IMPLANTS ; BEHAVIOR ; SYSTEM |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000263014700010 |
| 出版者 | JOHN WILEY & SONS LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2394465 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xiong, Cheng-Dong |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Wei,Zhang, Zhi-ping,Li, Qing,et al. Miscibility, morphology and thermal properties of poly(para-dioxanone)/poly(d,l-lactide) blends[J]. Polymer international,2009,58(2):183-189. |
| APA | Bai, Wei.,Zhang, Zhi-ping.,Li, Qing.,Chen, Dong-Liang.,Chen, He-Chun.,...&Xiong, Cheng-Dong.(2009).Miscibility, morphology and thermal properties of poly(para-dioxanone)/poly(d,l-lactide) blends.Polymer international,58(2),183-189. |
| MLA | Bai, Wei,et al."Miscibility, morphology and thermal properties of poly(para-dioxanone)/poly(d,l-lactide) blends".Polymer international 58.2(2009):183-189. |
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来源：中国科学院大学
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