Journal article
Improving Grafting Efficiency of Dicarboxylic Anhydride Monomer on Polylactic Acid by Manipulating Monomer Structure and Using Comonomer and Reducing Agent
Industrial & engineering chemistry research, Vol.56(14), pp.3920-3927
04/12/2017
Abstract
Maleic anhydride (MA) grafted polylactic acid (PLA) acting as reactive compatibilizer for PLA blends and composites has been reported. However, melt free-radical grafting of MA on PLA is often subject to steric and electron effects of the substituents in the monomer and low initiation efficiency, yielding low grafting efficiency (E g). In this work, five dicarboxylic anhydride monomers, including MA, itaconic anhydride (IA), cis-1,2,3,6-tetrahydrophthalic anhydride (TA), 4-allyltrimellitate anhydride (ATA), and 4-methacryloxyethyl trimellitate anhydride (META), were grafted onto PLA, and the effect of steric hindrance on E g was assessed. It is noted that E g values followed the order of ATA > META ≫ MA ≥ TA > IA. The introduction of styrene as a comonomer selectively increased the E g values of three electron-deficient monomers, MA, IA, and META, while Sn(Oct)2 as a reducing agent increased E g for all monomers. Both styrene and Sn(Oct)2 exhibited a synergistic effect when used in grafting MA, IA, and META.
Metrics
8 Record Views
Details
- Title
- Improving Grafting Efficiency of Dicarboxylic Anhydride Monomer on Polylactic Acid by Manipulating Monomer Structure and Using Comonomer and Reducing Agent
- Creators
- Wangcheng Liu - Washington State UniversityTao LiuTuan Liu - Washington State University, Composite Materials and Engineering CenterTian Liu - Washington State UniversityJunna Xin - Washington State University, Composite Materials and Engineering CenterWilliam C Hiscox - Washington State University, NMR CenterHang Liu - Washington State University, Apparel, Merchandising, Design and Textiles, Department ofLinshu Liu - Eastern Regional Research CenterJinwen Zhang - Washington State University, Composite Materials and Engineering Center
- Publication Details
- Industrial & engineering chemistry research, Vol.56(14), pp.3920-3927
- Academic Unit
- Apparel, Merchandising, Design and Textiles, Department of
- Publisher
- American Chemical Society
- Identifiers
- 99900620495201842
- Language
- English
- Resource Type
- Journal article