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Lamellae evolution of poly(butylene succinate-co-terephthalate) copolymer induced by uniaxial stretching and subsequent heating
Wei, ZZ; Lun, RX; Lou, XQ; Tian, F; Lin, JY; Li, XH; Yu, JY; Li, FX; Jinyoulin82@gmail.com; fxlee@dhu.edu.cn
2014
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume4Issue:110Pages:64625—64633
AbstractThe lamellar structural evolution of biodegradable poly(butylene succinate-co-terephthalate) (PBST) random copolymer was investigated under the conditions of uniaxial stretching at 50 degrees C, and then heating from 50 to 150 degrees C at a strain of 150% by the in situ small-angle X-ray scattering (SAXS) technique. A long period referring to the lamellae while processing PBST was calculated, and a schematic for the structural evolution was proposed. It has been found that the lamellar structure experienced a remarkable transformation accompanied by the strain-induced melting of lamellae and formation of new lamellae when the strain exceeded 84% at 50 degrees C during the initial deformation process. After stretching by 150%, the lamellar structure remained unchanged with the perfection of lamellae in the subsequent heating process from 50 to 120 degrees C. Only at relatively high temperatures (120-150 degrees C), the long period of lamellae underwent a significant increase. Conclusions can be drawn that the lamellar structure of PBST is more sensitive to strain and only a relatively high temperature has a prominent impact on it, which is of great significance to provide targeted design guidance for the manufacturing and application of biodegradable PBST copolymer and also gives potential insights into other random and aliphatic-aromatic copolymers.
KeywordX-ray-scattering Atomic-force Microscopy Small-angle Isotactic Polypropylene Induced Crystallization Linear Polyethylene Crystallinity Measurements Semicrystalline Polymers Deformation Mechanisms Hierarchical Structure
Indexed BySCI
Language英语
WOS IDWOS:000345826100030
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14212
Collection中科院上海应用物理研究所2011-2019年
Corresponding AuthorJinyoulin82@gmail.com; fxlee@dhu.edu.cn
Recommended Citation
GB/T 7714
Wei, ZZ,Lun, RX,Lou, XQ,et al. Lamellae evolution of poly(butylene succinate-co-terephthalate) copolymer induced by uniaxial stretching and subsequent heating[J]. RSC ADVANCES,2014,4(110):64625—64633.
APA Wei, ZZ.,Lun, RX.,Lou, XQ.,Tian, F.,Lin, JY.,...&fxlee@dhu.edu.cn.(2014).Lamellae evolution of poly(butylene succinate-co-terephthalate) copolymer induced by uniaxial stretching and subsequent heating.RSC ADVANCES,4(110),64625—64633.
MLA Wei, ZZ,et al."Lamellae evolution of poly(butylene succinate-co-terephthalate) copolymer induced by uniaxial stretching and subsequent heating".RSC ADVANCES 4.110(2014):64625—64633.
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