Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with Urea
In this study, polylactide/urea complexes were successfully prepared by the electrospinning method, then the host urea component was removed to obtain a coalesced poly(L-lactide) (PLLA)/poly(D-lactide) (PDLA) blend. The crystallization behavior of the coalesced PLLA/PDLA blend (c-PLLA/PDLA) was stud...
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doaj-9e8f56b9b1ce404ab96085ec6160b66a2020-11-24T23:55:28ZengMDPI AGPolymers2073-43602017-11-0191159210.3390/polym9110592polym9110592Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with UreaPing Liu0Xiao-Tong Chen1Hai-Mu Ye2Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, ChinaDepartment of Materials Science and Engineering, China University of Petroleum, Beijing 102249, ChinaDepartment of Materials Science and Engineering, China University of Petroleum, Beijing 102249, ChinaIn this study, polylactide/urea complexes were successfully prepared by the electrospinning method, then the host urea component was removed to obtain a coalesced poly(L-lactide) (PLLA)/poly(D-lactide) (PDLA) blend. The crystallization behavior of the coalesced PLLA/PDLA blend (c-PLLA/PDLA) was studied by a differential scanning calorimeter (DSC) and Fourier transform infrared (FTIR) spectroscopy. The c-PLLA/PDLA was found to show better crystallization ability than normal PLLA/PDLA blend (r-PLLA/PDLA). More interestingly, the c-PLLA/PDLA effectively and solely crystallized into stereocomplex crystals during the non-isothermal melt-crystallization process, and the reason was attributed to the equally-distributing state of PLLA and PDLA chains in the PLLA/PDLA/urea complex, which led to good interconnection between PLLA and PDLA chains when the urea frameworks were instantly removed.https://www.mdpi.com/2073-4360/9/11/592polylactideureainclusion complexcrystallizationstereocomplex |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ping Liu Xiao-Tong Chen Hai-Mu Ye |
spellingShingle |
Ping Liu Xiao-Tong Chen Hai-Mu Ye Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with Urea Polymers polylactide urea inclusion complex crystallization stereocomplex |
author_facet |
Ping Liu Xiao-Tong Chen Hai-Mu Ye |
author_sort |
Ping Liu |
title |
Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with Urea |
title_short |
Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with Urea |
title_full |
Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with Urea |
title_fullStr |
Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with Urea |
title_full_unstemmed |
Enhancing Stereocomplexation Ability of Polylactide by Coalescing from Its Inclusion Complex with Urea |
title_sort |
enhancing stereocomplexation ability of polylactide by coalescing from its inclusion complex with urea |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2017-11-01 |
description |
In this study, polylactide/urea complexes were successfully prepared by the electrospinning method, then the host urea component was removed to obtain a coalesced poly(L-lactide) (PLLA)/poly(D-lactide) (PDLA) blend. The crystallization behavior of the coalesced PLLA/PDLA blend (c-PLLA/PDLA) was studied by a differential scanning calorimeter (DSC) and Fourier transform infrared (FTIR) spectroscopy. The c-PLLA/PDLA was found to show better crystallization ability than normal PLLA/PDLA blend (r-PLLA/PDLA). More interestingly, the c-PLLA/PDLA effectively and solely crystallized into stereocomplex crystals during the non-isothermal melt-crystallization process, and the reason was attributed to the equally-distributing state of PLLA and PDLA chains in the PLLA/PDLA/urea complex, which led to good interconnection between PLLA and PDLA chains when the urea frameworks were instantly removed. |
topic |
polylactide urea inclusion complex crystallization stereocomplex |
url |
https://www.mdpi.com/2073-4360/9/11/592 |
work_keys_str_mv |
AT pingliu enhancingstereocomplexationabilityofpolylactidebycoalescingfromitsinclusioncomplexwithurea AT xiaotongchen enhancingstereocomplexationabilityofpolylactidebycoalescingfromitsinclusioncomplexwithurea AT haimuye enhancingstereocomplexationabilityofpolylactidebycoalescingfromitsinclusioncomplexwithurea |
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1725462416107503616 |