Difference in solid-state properties and enzymatic degradation of three kinds of poly(butylene succinate)/cellulose blends

Abstract

Biodegradable poly(butylene succinate) (PBS) was blended with cellulose microcrystalline (CMC), cellulose acetate (CA), and cellulose triacetate (CTA), respectively, to improve its properties and reduce its cost. The differences in solid-state properties and enzymatic degradation were investigated using FTIR, DSC, XRD, and SEM analysis. SEM images show that the fillers stick up above the matrix and form some pores in both PBS/CMC and PBS/CA blends because of their poor compatibility. Whereas fine particles of PBS and CTA are uniformly mixed and tightly packed together. The degree of crystallinity decreases for PBS/ CTA blends, thereby showing that CTA molecules destroy the crystal uniformity. Young's modulus is increased at average values of 43% after blending. The weight loss ratios of PBS/CMC and PBS/CA blends both reach approximately 85% after 4 h. SEM images show that the spherulitic texture in the surface easily formed cracks and holes and contributed to enzymolysis. In PBS/CTA samples, the weight loss ratio declined to 16% after 4 h. The surfaces are smooth and the enzymolysis occurs only on the surface.

A lignin‐based flame retardant for improving fire behavior and biodegradation performance of polybutylene succinate

“…Figure shows an X‐ray diffraction spectra of PBS and its composite films. The diffraction peaks of pure PBS film are found at 19.5°, 21.5°, and 22.5°, which correspond to the crystal planes (020), (021), and (110), respectively . All films have the same crystal phase as pure PBS, which means that the addition of CP‐lignin could not affect the crystalline structure of PBS.…”

“…W loss (%) means the weight loss ratio of the films. W before and W after are the weight of the films before and after degradation, respectively …”

“…Hu et al investigated the enzymatic degradation of 3 kinds of PBS/cellulose blends. The result shows that the weight loss ratio of PBS/cellulose triacetate samples declined to 16% after 4 hours . It is reported that the degradation of PBSA particles by Pseudozyma antarctica was inhibited in the presence of mannosylerythritol lipid, whereas the untreated PBSA films were almost completely degrade .…”

Organic acids under pressure: elastic properties, negative mechanical phenomena and pressure induced phase transitions in the lactic, maleic, succinic and citric acids

“…295,300 The characteristics and mechanical properties of many interesting polymers and materials based on, or related to, succinic acid have long been investigated. [301][302][303][304][305][306][307][308][309][310][311][312][313][314][315][316][317] 2.3.1 Crystal structure. The optimized crystal structure of succinic acid, COOH-CH-CH-COOH, is plotted in Fig.…”

A Middle-Aged Enzyme Still in Its Prime: Recent Advances in the Field of Cutinases

“…Hydrolysis of PBS films was actuated by the use of a recombinant cutinase from F. solani with achieved weight loss in the vicinity of approximately 80-90%, depending on the polymer molecular weight, after 48 h of incubation at 37 • C [99]. The same scientific group prepared PBS blends with microcrystalline cellulose and cellulose acetate, and achieved 85% weight loss after 4 h of enzymatic reaction at 37 • C [100]. Bai and coworkers studied the enzymatic degradation of poly(ethylene succinate) (PES), PBS, and poly(hexylene succinate) (PHS) by a F. solani cutinase [101].…”