Ultraviolet‐induced chain extension of poly(ethylene terephthalate) based on radical reaction with the aid of trimethylolpropane triacrylate and glycidyl methacrylate during extrusion

2020 ◽  
Vol 69 (7) ◽  
pp. 611-618
Author(s):  
Wei‐Tao Huang ◽  
Guang‐Jian He ◽  
Wen‐Dong Tang ◽  
Xian‐Wu Cao
Keyword(s):  
Glycidyl Methacrylate ◽  
Ethylene Terephthalate ◽  
Radical Reaction ◽  
Chain Extension ◽  
Poly Ethylene Terephthalate ◽  
Trimethylolpropane Triacrylate ◽  
Poly Ethylene

scholarly journals Functionalization of Partially Bio-Based Poly(Ethylene Terephthalate) by Blending with Fully Bio-Based Poly(Amide) 10,10 and a Glycidyl Methacrylate-Based Compatibilizer

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1331 ◽  
Author(s):  
Maria Jorda ◽  
Sergi Montava-Jorda ◽  
Rafael Balart ◽  
Diego Lascano ◽  
Nestor Montanes ◽  
...  
Keyword(s):  
Glycidyl Methacrylate ◽  
Ethylene Terephthalate ◽  
Thermomechanical Properties ◽  
Interesting Aspect ◽  
Binary Blends ◽  
Poly Ethylene Terephthalate ◽  
Scanning Electron Microcopy ◽  
Poly Ethylene ◽  
Methacrylate Copolymer ◽  
Intrinsic Stiffness

This work shows the potential of binary blends composed of partially bio-based poly(ethyelene terephthalate) (bioPET) and fully bio-based poly(amide) 10,10 (bioPA1010). These blends are manufactured by extrusion and subsequent injection moulding and characterized in terms of mechanical, thermal and thermomechanical properties. To overcome or minimize the immiscibility, a glycidyl methacrylate copolymer, namely poly(styrene-ran-glycidyl methacrylate) (PS-GMA; Xibond™ 920) was used. The addition of 30 wt % bioPA provides increased renewable content up to 50 wt %, but the most interesting aspect is that bioPA contributes to improved toughness and other ductile properties such as elongation at yield. The morphology study revealed a typical immiscible droplet-like structure and the effectiveness of the PS-GMA copolymer was assessed by field emission scanning electron microcopy (FESEM) with a clear decrease in the droplet size due to compatibilization. It is possible to conclude that bioPA1010 can positively contribute to reduce the intrinsic stiffness of bioPET and, in addition, it increases the renewable content of the developed materials.

Effects of Chain Extension and Branching on the Properties of Poly (Ethylene-Terephthalate)-Organoclay Nanocomposites

2004 ◽  
Vol 856 ◽  
Author(s):  
Ali Emrah Keyfoglu ◽  
Ulku Yilmazer
Keyword(s):  
Ethylene Terephthalate ◽  
Interlayer Spacing ◽  
Chain Scission ◽  
Chain Extension ◽  
Twin Screw Extrusion ◽  
Poly Ethylene Terephthalate ◽  
Screw Extrusion ◽  
Organically Modified ◽  
Twin Screw ◽  
Poly Ethylene

ABSTRACTThe effects of chain extension and branching on the properties of nanocomposites produced from recycled poly (ethylene-terephthalate) and organically modified clay were investigated. As the potential chain extension/branching agent, maleic anhydride (MA) and pyromellitic dianhydride (PMDA) were used. The nanocomposites were prepared by twin-screw extrusion, followed by injection molding. Recycled poly (ethylene-terephthalate) was mixed with 2, 3 or 4 weight % of organically modified montmorillonite. During the second extrusion step, 0.5, 0.75 or 1 weight % of MA or PMDA was added to the products of the first extrusion. The effects of the sequence of addition of the ingredients on the final properties of the nanocomposites were also investigated. X-Ray Diffraction analysis showed that, the interlayer spacing of Cloisite 25A expanded from 19.21 Å to about 28–34 Å after processing with polymer indicating an intercalated structure. PMDA content, MA content and screw speed did not have a significant effect on the expanded interlayer distance. In the first extrusion step, nanocomposites containing 3% organoclay content gave significant increase in Young's modulus and decrease in elongation at break values indicating good interfacial adhesion. After the addition of anhydrides, it was observed that, in general PMDA improved the mechanical properties of the nanocomposite owing to the branching and chain extension effects that increase the molecular weight. However, MA did not significantly improve the properties, since in this case the chain scission seemed to be more dominant.

Polymerization of glycidyl methacrylate with poly(ethylene terephthalate) fibers using Fe2–H2O2 redox system

1983 ◽  
Vol 28 (1) ◽  
pp. 303-310 ◽  
Author(s):  
A. Hebeish ◽  
S. Shalaby ◽  
A. Waly ◽  
A. Bayazeed
Keyword(s):  
Glycidyl Methacrylate ◽  
Ethylene Terephthalate ◽  
Redox System ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Effect of cyclotrimerization of bisphenol-A dicyanate monomer on poly(ethylene terephthalate) chain extension

2011 ◽  
Vol 51 (9) ◽  
pp. 1791-1796 ◽  
Author(s):  
Yanjun Zhang ◽  
Chen Zhang ◽  
Hangquan Li ◽  
Zhongjie Du
Keyword(s):  
Bisphenol A ◽  
Ethylene Terephthalate ◽  
Chain Extension ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Influence of the reactive processing of recycled poly(ethylene terephthalate)/poly(ethylene-co-glycidyl methacrylate) blends

2010 ◽  
Vol 120 (1) ◽  
pp. 50-55 ◽  
Author(s):  
Noriaki Kunimune ◽  
Kazushi Yamada ◽  
Yew Wei Leong ◽  
Supaphorn Thumsorn ◽  
Hiroyuki Hamada
Keyword(s):  
Glycidyl Methacrylate ◽  
Ethylene Terephthalate ◽  
Reactive Processing ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

scholarly journals Chain extension of poly (ethylene terephthalate) by reactive extrusion with secondary stabilizer

2012 ◽  
Vol 15 (3) ◽  
pp. 467-472 ◽  
Author(s):  
Breno Heins Bimestre ◽  
Clodoaldo Saron
Keyword(s):  
Ethylene Terephthalate ◽  
Reactive Extrusion ◽  
Chain Extension ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene
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