Contribution of Ungrafted Segments in Core-Shell Impact Modifier in the Toughening of PBT Resins by Epoxy Functionalized Poly(Butadiene-graft-Styrene). Issue 16 (2nd November 2018)

• Record Type: Journal Article
• Authors: Zheng, Yangyang; Zhao, Jingbo; Li, Shengnan; Tan, Zhiyong; Zhang, Huixuan
• Is Part Of: Polymer-plastics technology and engineering. Volume 57:Issue 16(2018)
• Page Start: 1697
• Page End: 1705
• Publication Date: 2018-11-02
• Subjects: Core-shell modifier -- epoxy-functionalized -- PBT -- toughening; Polymers -- Periodicals; Polymerization -- Periodicals; Polymers -- Periodicals; Engineering -- Periodicals; Plastics -- Periodicals; 668.9
• DOI: 10.1080/03602559.2017.1419488
• Languages: English
• ISSNs: 0360-2559

Abstract

ABSTRACT: A series of poly(butadiene- graft -styrene) core-shell impact modifiers and glycidyl methacrylate functionalized PB- g -PS (PB- g -PSG) with different glycidyl methacrylate content were synthesized by seeds emulsion polymerization. The modifiers were used to toughen poly(butylene terephthalate) resins. The results showed that poly(butylene terephthalate) was efficiently toughened by functionalized PB- g -PSG but not by poly(butadiene- graft -styrene). The introduction of glycidyl methacrylate improved the miscibility and properties. The effects of the ungrafted segments in modifiers on the properties of blends were investigated. The miscibility and properties dropped after the ungrafted segments in modifiers were separated. Results indicated that ungrafted PS segments showed positive effect on toughening of poly(butylene terephthalate). GRAPHICAL ABSTRACT: