Effects of natural polymer acetylation on the anaerobic bioconversion to methane and carbon dioxide

@article{Rivard1992EffectsON,
  title={Effects of natural polymer acetylation on the anaerobic bioconversion to methane and carbon dioxide},
  author={Christopher J. Rivard and William S. Adney and Michael E. Himmel and David J. Mitchell and Todd B. Vinzant and Karel Grohmann and Luc Moens and Helena Li Chum},
  journal={Applied Biochemistry and Biotechnology},
  year={1992},
  volume={34-35},
  pages={725-736}
}
The successful production of novel biodegradable plastic copolymers incorporating both synthetic plastic formulations, such as polystyrene, and naturally occurring biodegradable polymer components, such as cellulose, starch, or xylan, requires stable chemical bonding between these polymers. Modification of the natural polymers through acetylation of the available hydroxyl groups permits the formation of appropriate film-forming plastic copolymers. However, modification of natural polymers has… 

Assessment of Several Test Methods for the Determination of the Anaerobic Biodegradability of Polymers

Anaerobic degradation of eight commercially available biodegradable polymers was compared in two anaerobic tests using digestion sludge, according to ISO 11734 and ASTM D.5210-91, but with the ISO medium, longer lag phases and greater ranges of variation in the results were observed.

Degradation of Cellulose Acetate-Based Materials: A Review

Cellulose acetate polymer is used to make a variety of consumer products including textiles, plastic films, and cigarette filters. A review of degradation mechanisms, and the possible approaches to

Biodegradation behavior of acid-containing cellulose acetate film in soil

An IR analysis suggested that this deacetylating ability of acids is correlated with the intensity of their interaction with the acetyl group of CA, and was considerably lowered by the elution of internal acids with time.

Biodegradation of Cellulose Esters: Composting of Cellulose Ester-Diluent Mixtures

Abstract A number of polymers such as polylactic acid (PLA), polycaprolactone (PCL), polyhydroxybutyrate (PHB), Matter-Bi, cellulose acetate (CA) with different degrees of substitution (DS), and

Deacetylation behavior of binary blend films of cellulose acetate and various polymers

For binary blend films of cellulose acetate (CA) and various polymers, the elution behavior of the polymers from the CA films in different environments (i.e., soil, water) was examined. For the CA

Biodegradation of Functionalized Nanocellulose.

Results from this study highlight the need to quantify the type and coverage of surface substituents in order to anticipate their effects on the environmental persistence of functionalized nanocellulose.

Physical and Chemical Features of Pretreated Biomass that Influence Macro-/Micro-accessibility and Biological Processing

Thermochemical pretreatments are considered leading options due to their comparatively short reaction time, effectiveness, and lower energy requirements compared to mechanical options [11–13].

The influence of degree of substitution on blend miscibility and biodegradation of cellulose acetate blends

In this account, we report our findings on blends of cellulose acetate having a degree of substitution (DS) of 2.49 (CA2.5) with a cellulose acetate having a DS of 2.06 (CA2.0). This blend system was

References

SHOWING 1-10 OF 14 REFERENCES

Preparation of bio-based polymers for materials applications

A new technology developed by us for the synthesis of well defined, tailored cellulose-synthetic polymer graft polymers and crosslinked cellulose graft polymers with control over the molecular weight

Aerobic and anaerobic digestion of processed municipal solid waste

Specific cellulose degradation rates were determined for aerobic and anaerobic digestion systems fed a high cellulose, processed MSW feed, while maintaining optimum nutrient levels, mesophilic temperature (37°C), and a pH of 7.0–7.4.

Effect of the degree of acetylation on the enzymatic digestion of acetylated xylans

The onset of resistance is similar for both the xylanase and acetyl esterase enzymes, and both enzymes were completely inhibited by a degree of acetylation of 1.5 moles acetyl groups per mole anhydroxylose units at all enzyme loadings.

Wood cellulose as a chemical feedstock for the cellulose esters industry

This article profiles the importance of cellulose in industrial and post industrial economies.

Solid Waste Concerns Spur Plastic Recycling Efforts

The management of solid waste is reaching a crisis in the U.S. and worldwide. This is illustrated by wandering garbage barges with no permission to land and by wastes washing up on beaches. Every

High-temperature superconductors on the road to applications

It was almost exactly three years ago that a ceramic material that superconducts above liquid nitrogen temperature (77 K) was discovered. Within days of the discovery, electronics, power