Effect of poly(ethylene glycol)-block-poly(L-lactide) on the poly[(R)-3-hydroxybutyrate]/poly(L-lactide) blends

Miscibility and hydrolytic degradation in alkaline solution of poly(l-lactide) and poly(methyl methacrylate) blends

“…(5). In this report, 'hydrolytic degradation rate' means not the molecular weight loss rate but the sample weight loss rate.…”

“…In the previous reports, the blends of PLLA with biodegradable polymers such as poly (D-lactide) (PDLA) [1,2], poly(3-caprolactone) (PCL) [3,4], poly(3-hydroxybutyric acid) (PHB) [5,6], poly(ethylene oxide) (PEO) [7], and poly(vinyl alcohol) (PVA) [8] were studied because the biodegradability and the biocompatibility were required for some applications such as medical materials. But in some cases in other applications such as some part of car and electronic products, non-biodegradability is required.…”

Mechanical Properties of Poly(lactic Acid)

“…PHB is the simplest and most common PHA. Yoon et al (2000) have studied the effect of different types and amounts of compatibilizer on the mechanical properties of PLLA/ PHB blends. PLLA and PHB (50/50 wt%) were blended in chloroform (3 wt%) and films of the PLLA/PHB blend were then recovered by evaporating the solvent followed by drying in a vacuum at 40 C. The compatibilizers used were PLLAÀPEGÀPLLA triblock copolymer, PEGÀPLLA diblock copolymer and poly(vinyl acetate) at 2 and 5 wt%.…”

Mechanical characterization and damage events of flax fabric-reinforced biopolymer composites

“…9,10 The preparing method of this kind of blend also influences the miscibility. 11 The mechanical properties of PLA/PHB blends, and even their ability to be stretched, 12 have been studied without treatment 11,13 and using the polyethylene glycol 14 and the Lapol 108 15 as plasticizers. Other blends of PLA with other copolymers of PHA such as PHBHH x (copolymer comprised of 3HB and 3-hydroxyhexanoate 3HH x units), 16 -19 P(3HB- co -4HB) 20 and even ternary blends (PLA/PHBV/PBS) 21 were performed and studied.…”