Formation of Ring-Banded Spherulites of Poly (L-lactide) in its Miscible Mixture with an Ionic Liquid. Issue 5 (4th May 2017)

• Record Type: Journal Article
• Authors: Ju, Yunhui; Zhang, Peng; Lv, Ruihua; Na, Bing; Chen, Bibo; Deng, Huiyu
• Is Part Of: Journal of macromolecular science. Volume 56:Issue 5(2017)
• Page Start: 296
• Page End: 305
• Publication Date: 2017-05-04
• Subjects: Banded spherulites -- Ionic liquid -- poly (l-lactide) -- Sol–gel transition; Polymerization -- Periodicals; Polymers -- Periodicals; 530.413
• DOI: 10.1080/00222348.2017.1301234
• Languages: English
• ISSNs: 0022-2348

Abstract

ABSTRACT: Incorporation of an ionic liquid, nonvolatile and thermally stable, promoted formation of ring-banded spherulites in poly (l -lactide) (PLLA) during its sol–gel transition. Their formation is correlated with low viscosity and insignificant chain entanglements in the mixtures induced by the ionic liquid. In addition to a driving force for lamellar twisting that depended on the crystallization temperatures, it is believed that reduced lamellar twisting resistance caused by the ionic liquid plays a vital role in the formation of the ring-banded spherulites of PLLA from the mixtures. This study gives further insights into the structural formation of PLLA during a sol–gel transition, which could open new opportunities to tailor the properties of ion gels based on PLLA.