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Effect of isothermal annealing on degree of crystallinity and mechanical properties of poly(l-lactide-co-glycolide)
Zhao, Na1,2; Wang, Liansong1,2; Huang, Dongling1; Zhang, Tianyao1; Zhang, Lifang1; Xiong, Chengdong1
刊名Crystal research and technology
2010-03-01
卷号45期号:3页码:275-280
关键词Biomaterials Crystal growth Mechanical properties Stability
ISSN号0232-1300
DOI10.1002/crat.200900617
通讯作者Xiong, chengdong(cdxiong@yahoo.cn)
英文摘要We investigated the effect of isothermal annealing on the degree of crystallinity and mechanical properties of a random copolymer-poly(l-lactide-co-glycolide) (pllga)-with monomer molar ratios of 85/15 (pllga85/15) by performing polarizing optical microscopy, differential scanning calorimetry, and x-ray diffraction, and studying the tensile properties. isothermal annealing of pllga at 130 degrees c was conducted to improve the degree of crystallinity of the copolymer; the maximum degree of crystallinity (44.5%) was achieved after 60 min of annealing. the crystal size/perfection was observed to increase with annealing time. the highest tensile strength of 65.8 mpa was achieved after 80 min of annealing. however, the degree of crystallinity and tensile strength can only reach to certain extent. (c) 2010 wiley-vch verlag gmbh & co. kgaa, weinheim
WOS关键词BIODEGRADATION ; POLYMERS ; PLGA
WOS研究方向Crystallography
WOS类目Crystallography
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000275523600010
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2406381
专题中国科学院大学
通讯作者Xiong, Chengdong
作者单位1.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Na,Wang, Liansong,Huang, Dongling,et al. Effect of isothermal annealing on degree of crystallinity and mechanical properties of poly(l-lactide-co-glycolide)[J]. Crystal research and technology,2010,45(3):275-280.
APA Zhao, Na,Wang, Liansong,Huang, Dongling,Zhang, Tianyao,Zhang, Lifang,&Xiong, Chengdong.(2010).Effect of isothermal annealing on degree of crystallinity and mechanical properties of poly(l-lactide-co-glycolide).Crystal research and technology,45(3),275-280.
MLA Zhao, Na,et al."Effect of isothermal annealing on degree of crystallinity and mechanical properties of poly(l-lactide-co-glycolide)".Crystal research and technology 45.3(2010):275-280.
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