Accelerating reactive compatibilization of PE/PLA blends by an interfacially localized catalyst

Christopher M. Thurber, Yuewen Xu, Jason C. Myers, Timothy P. Lodge, Christopher W. Macosko

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

We show catalyst localized at the interface can compatibilize polyethylene (PE) and polylactide (PLA) blends. Telechelic hydroxyl functional PE was synthesized by ring opening metathesis polymerization, which reacted with PLA in melt mixing (shown by adhesion and droplet size reduction). Lewis acid tin catalysts were examined as interfacial reaction promoters, with the goal of interfacial localization. Stannous octoate was shown to localize at the interface by transmission electron microscopy with energy dispersive X-ray spectroscopy and improved dispersion of PLA in PE as compared to uncatalyzed materials and a nonlocalized tin chloride dihydrate. (Figure Presented).

Original languageEnglish (US)
Pages (from-to)30-33
Number of pages4
JournalACS Macro Letters
Volume4
Issue number1
DOIs
StatePublished - Jan 20 2015

Bibliographical note

Publisher Copyright:
© 2014 American Chemical Society.

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