Crystallization behavior of poly(ethylene terephthalate)/pyrrolidinium ionic liquid. Issue 12 (4th March 2013)

• Record Type: Journal Article
• Authors: Dou, Junyan; Liu, Zhengping
• Is Part Of: Polymer international. Volume 62:Issue 12(2013:Dec.)
• Page Start: 1698
• Page End: 1710
• Publication Date: 2013-03-04
• Subjects: ionic liquid -- poly(ethylene terephthalate) -- crystallization -- kinetic crystallizability; Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.7
• DOI: 10.1002/pi.4470
• Languages: English
• ISSNs: 0959-8103

Abstract

Abstract: Composites of poly(ethylene terephthalate) (PET) with ionic liquid (IL) as matrix were prepared by in situ polycondensation. XRD and DSC were performed to probe crystal structures and determine the crystallization kinetics during crystallization. ILs could serve as nucleating agents in accelerating the crystallization of PET. However, the ability of ILs to induce crystallization is different with variation of IL content. Avrami analysis revealed that the Avrami exponent, n > 2, testifies to the existence of three‐dimensional spherulitic growth. The kinetic equations (the modified Avrami equation and the combined Avrami and Ozawa equation) are employed to analyze the non‐isothermal process. The modified Avrami equation could adequately describe the primary non‐isothermal crystallization of PET/IL. The approach of combining the Avrami and Ozawa equations provides a fairly satisfactory description of the non‐isothermal crystallization of PET/IL. © 2013 Society of Chemical Industry Abstract : Composites of poly(ethylene terephthalate) with pyrrolidinium ionic liquid as matrix were prepared. Ionic liquid has the ability to induce crystallization and serves as nucleating agent in accelerating the crystallization of PET.