Related Experiment Video
Updated: Aug 29, 2025

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
Published on: October 28, 2015
Effects of Endic Anhydride Grafted PPC on the Properties of PHBV Blends
Qing Zhang1, Yongguang Gao1, Huiyuan Liu1
1College of Chemistry, Tangshan Normal University, Tangshan 063000, China.
Abstract:
Poly(β-hydroxybutyrate-co-β-hydroxyvalerate) (PHBV) was modified with endic anhydride grafted poly(propylene carbonate) (EA-PPC), and then PHBV/EA-PPC composite polymers were prepared by melt blending under the catalysis of stannous octoate (Sn(Oct)2). The blends were characterized by an electronic universal testing machine, cantilever impact testing machine, and differential scanning calorimeter (DSC), as well as dynamic mechanical analysis (DMA) and field emission scanning electron microscopy (FESEM). Effects of the amount of Sn(Oct)2 on the mechanical properties, thermal properties, and morphology of the blends were discussed. The results showed that the addition of Sn(Oct)2 promoted the transesterification reaction between PHBV and EA-PPC, and the compatibility between PHBV and PPC was greatly improved. When the amount of Sn(Oct)2 was 3 wt%, the impact strength and elongation at break of the PHBV/EA-PPC blend increased from 3.7 kJ/m2 and 4.1% to 5.9 kJ/m2 and 387.5%, respectively, and there was no significant decrease in tensile strength. Additionally, four esterification reaction mechanisms for PHBV/EA-PPC blends were proposed.
More Related Videos
06:56Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
Published on: October 10, 2013
10:53Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
Published on: October 10, 2016
Related Concept Videos
Polymer Classification: Architecture
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)
Electrophilic 1,2- and 1,4-Addition of HX to 1,3-Butadiene
Regioselectivity of Electrophilic Additions-Peroxide Effect
Anionic Chain-Growth Polymerization: Overview
Polymer Classification: Stereospecificity