Miscibility Investigation of Fluorocarbon Copolymer and Methacrylate Copolymer Blends

2001 ◽  
pp. 91-112 ◽  
Author(s):  
Melynda C. Calves ◽  
J. P. Harmon
Keyword(s):  
Copolymer Blends ◽  
Methacrylate Copolymer

Preparation and Characterization of Poly(Lactic Acid)/Ethylene Glycidyl Methacrylate Copolymer Blends

2010 ◽  
Vol 150-151 ◽  
pp. 139-143
Author(s):  
Chi Hui Tsou ◽  
Ya Ming Li ◽  
Wei Hua Yao ◽  
Jen Taut Yeh
Keyword(s):  
Reactive Extrusion ◽  
Poly Lactic Acid ◽  
Shear Rates ◽  
Copolymer Blends ◽  
Blown Film ◽  
Ft Ir ◽  
Ir Analysis ◽  
Methacrylate Copolymer ◽  
Epoxy Groups

Both tensile and tear strength values of PLAxEGMCy blown-film specimens in machine and transverse directions improve significantly and reach the maximum values as their EGMC contents approach an optimum value of 6 wt%. The melt shear viscosity values of PLAxEGMCy resins measured at varying shear rates are significantly higher than those of the PLA resin and increase consistently with their EGMC contents. FT-IR analysis suggest that the carboxylic acid groups of PLA molecules react with the epoxy groups of EGMC molecules during the reactive-extrusion processes of PLAxEGMCy specimens. Further DMA and morphological analysis of PLAxEGMCy specimens reveal that EGMC molecules are phase-separated with PLA molecules at EGMC contents equal to or more than 2 wt%, since distinguished phase-separated EGMC droplets and tanδ transitions were found on fracture surfaces and tanδ curves of PLAxEGMCy specimens, respectively. Possible reasons accounting for the above interesting properties of the PLA/EGMC specimens are proposed in this study.

UV-enhanced Ordering in Azobenzene-Containing Polystyrene-block-Poly(n-Butyl Methacrylate) Copolymer Blends

2011 ◽  
Vol 44 (2) ◽  
pp. 278-285 ◽  
Author(s):  
Wei Chen ◽  
Jia-Yu Wang ◽  
Xinyu Wei ◽  
Ji Xu ◽  
Anna C. Balazs ◽  
...  
Keyword(s):  
Butyl Methacrylate ◽  
Copolymer Blends ◽  
Methacrylate Copolymer
Sign in / Sign up

Export Citation Format

Share Document