Synthesis and Properties of High Molecular Weight Poly(lactic Acid) and Its Resultant Fibers

Bioactive albumin functionalized polylactic acid membranes for improved biocompatibility

“…3a and b. This is because albumin is characterized by strong amide bonds classified into amides I, II and II [45,46]. These peaks are assigned to the stretching vibration of AOH, amide A (mainly ANH stretching vibration), amide I (mainly C@O stretching vibration), and amide II (the coupling of bending vibration of NAH and stretching vibration of CAN) bands, respectively [45].…”

Poly(lactic acid) blends in biomedical applications

“…The two enantiomerically pure homopolymers (PLLA and PDLA) and an array of racemic PDLLA polymers with varying ratios of d and l monomers present a range of physical properties [5]. In addition, thermal and mechanical properties of PLA also vary with molecular weight [6]. Table 1 lists the physical properties of the PLA polymers [7].…”

Annealing effects on structural changes and thermal shrinkage of poly(lactic acid) draw-textured filaments

“…This may be attributed to the developed crystal structure of thicker crystal shown in Figure 3. Carbonyl stretching band is the most prominent one in PLA FT-IR spectra (Zhang & Wang, 2008). Though there is no direct evidence to relate carbonyl band strength to the WAXS results, the increase in C=O stretching absorption band might be introduced by developing crystal structure based on similar tendency between WAXS profiles and FT-IR spectra.…”