Melt free radical grafting of glycidyl methacrylate (GMA) onto fully biodegradable poly(lactic) acid films: effect of cellulose nanocrystals and a masterbatch process

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32350-32357 ◽  
Author(s):  
Weijun Yang ◽  
Franco Dominici ◽  
Elena Fortunati ◽  
José M. Kenny ◽  
Debora Puglia
Keyword(s):  
Lactic Acid ◽  
Free Radical ◽  
Cellulose Nanocrystals ◽  
Glycidyl Methacrylate ◽  
Cellulose Nanocrystal ◽  
Poly Lactic Acid ◽  
Biodegradable Poly

This article reports the preparation, by means of a masterbatch procedure, of poly (lactic acid) (PLA)/cellulose nanocrystal (CNC) films via premixing 1% wt of CNC into PLA or glycidyl methacrylate (GMA) grafted PLA (g-PLA).

scholarly journals Impact Toughness and Ductility Enhancement of Biodegradable Poly(lactic acid)/Poly(ε-caprolactone) Blends via Addition of Glycidyl Methacrylate

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Wei Kit Chee ◽  
Nor Azowa Ibrahim ◽  
Norhazlin Zainuddin ◽  
Mohd Faizal Abd Rahman ◽  
Buong Woei Chieng
Keyword(s):  
Lactic Acid ◽  
Impact Strength ◽  
Glycidyl Methacrylate ◽  
Interfacial Adhesion ◽  
Tensile Modulus ◽  
Sem Analysis ◽  
Poly Lactic Acid ◽  
Biodegradable Poly ◽  
Interfacial Compatibility ◽  
The Impact

Poly(lactic acid) (PLA)/poly(ε-caprolactone) (PCL) blends were prepared via melt blending technique. Glycidyl methacrylate (GMA) was added as reactive compatibilizer to improve the interfacial adhesion between immiscible phases of PLA and PCL matrices. Tensile test revealed that optimum in elongation at break of approximately 327% achieved when GMA loading was up to 3wt%. Slight drop in tensile strength and tensile modulus at optimum ratio suggested that the blends were tuned to be deformable. Flexural studies showed slight drop in flexural strength and modulus when GMA wt% increases as a result of improved flexibility by finer dispersion of PCL in PLA matrix. Besides, incorporation of GMA in the blends remarkably improved the impact strength. Highest impact strength was achieved (160% compared to pure PLA/PCL blend) when GMA loading was up to 3 wt%. SEM analysis revealed improved interfacial adhesion between PLA/PCL blends in the presence of GMA. Finer dispersion and smooth surface of the specimens were noted as GMA loading increases, indicating that addition of GMA eventually improved the interfacial compatibility of the nonmiscible blend.

Effect of cellulose nanocrystal polymorphs on mechanical, barrier and thermal properties of poly(lactic acid) based bionanocomposites

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60426-60440 ◽  
Author(s):  
Prodyut Dhar ◽  
Debashis Tarafder ◽  
Amit Kumar ◽  
Vimal Katiyar
Keyword(s):  
Lactic Acid ◽  
Thermal Properties ◽  
Cellulose Nanocrystals ◽  
Cellulose Nanocrystal ◽  
Poly Lactic Acid ◽  
Bamboo Pulp ◽  
Mechanical Barrier

Cellulose nanocrystals (CNCs) using different cellulose polymorphs have been fabricated from raw bamboo pulp. Their structural and morphological effects on the mechanical, barrier and thermal properties of poly(lactic acid) have been investigated.

scholarly journals Melt Free-Radical Grafting of Maleic Anhydride onto Biodegradable Poly(lactic acid) by Using Styrene as A Comonomer

Polymers ◽  
2014 ◽  
Vol 6 (5) ◽  
pp. 1528-1543 ◽  
Author(s):  
Piming Ma ◽  
Long Jiang ◽  
Tao Ye ◽  
Weifu Dong ◽  
Mingqing Chen
Keyword(s):  
Lactic Acid ◽  
Free Radical ◽  
Maleic Anhydride ◽  
Poly Lactic Acid ◽  
Biodegradable Poly
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