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Crystallization kinetics, morphology and spherulite growth in poly(trimethylene terephthalate) modified with bisphenol-A diglycidyl ether

  • C. SarathchandranEmail author
  • Li Ziang
  • Robert A. Shanks
  • C. H. Chan
  • V. Sekkar
  • Sabu Thomas
Article
  • 4 Downloads

Abstract

The role of bisphenol-A diglycidyl ether (BADGE)—a weakly interacting, low molecular weight additive on crystallization kinetics, morphology and spherulite growth of semi-crystalline thermoplastic- poly(trimethylene terephthalate) (PTT) is quantitatively evaluated. Blends of PTT with different loadings of BADGE were prepared by melt blending. Weak secondary interactions between BADGE and PTT influenced the crystallization kinetics of PTT. This gives rise to concentration-dependent changes in spherulite morphology, crystallization kinetics and stereochemical conformation of PTT. BADGE behaved as a nucleating agent/plasticizer for PTT depending on its loading and changed the conformational distribution of PTT thereby facilitating chain mobility, along with diffusion and attachment of chain segments to crystal nuclei and growth faces. Crystallization kinetics and glass transition studies were carried out using differential scanning calorimetry, while spherulite growth rate was followed using polarized optical microscope equipped with hot stage, and the microphase structure evaluated using small-angle X-ray scattering studies.

Keywords

Crystallization kinetics Morphology development Dynamic asymmetry in polymer blends Avrami model 

Notes

Supplementary material

10973_2019_9047_MOESM1_ESM.docx (214 kb)
Supplementary material 1 (DOCX 213 kb)

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Department of SciencesAmrita School of Engineering, Amrita Vishwa VidyapeethamChennaiIndia
  2. 2.School of ScienceRMIT UniversityMelbourneAustralia
  3. 3.Beijing Synchrotron Radiation Facility, Institute of High Energy PhysicsChinese Academy of SciencesBeijingPeople’s Republic of China
  4. 4.Faculty of Applied SciencesUniversity Teknologi MARAShah AlamMalaysia
  5. 5.Centre for Environmental SciencesCochin University of Science and TechnologyCochinIndia
  6. 6.School of Chemical SciencesMahatma Gandhi UniversityKottayamIndia

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