A Clean Strategy to Prepare Polylactide/Hydroxyapatite Bionanocomposites via Solid Mechanochemistry. Issue 5 (4th May 2017)

• Record Type: Journal Article
• Authors: Hua, Zhengkun; Nie, Min; Liu, Xiang; Wang, Qi
• Is Part Of: Journal of macromolecular science. Volume 56:Issue 5(2017)
• Page Start: 306
• Page End: 314
• Publication Date: 2017-05-04
• Subjects: Hydroxyapatite -- interfacial interaction -- mechanochemistry -- polylactide -- solid grafting; Polymerization -- Periodicals; Polymers -- Periodicals; 530.413
• DOI: 10.1080/00222348.2017.1301301
• Languages: English
• ISSNs: 0022-2348

Abstract

ABSTRACT: Polylactide (PLA) chains were ruptured to generate free macroradicals terminated on the surface of hydroxyapatite (HA) by means of a strong shear stress generated via solid-state shear milling, achieving the solid grafting of PLA on HA without chemical treatment. As a result, the interfacial interaction between PLA and HA and the dispersion of HA in PLA were improved, resulting in significant promotion of the crystallization of PLA and thus PLA/HA composites with higher performance were obtained. This study opened up a new, clean and uncontaminated strategy to prepare PLA/HA bionanocomposites.