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and chemical synthesis of crude oil.

It is a general chemical synthesis of the plastic nature, such as thermoplastic molding and can be stained, thereby causing serious hazard to replace the synthetic plastics.

Chemical properties and synthesis of organic polymers.

Biodegradation is defined as any physical or chemical change in a material caused by biological activity. Microorganisms such as bacteria, fungi and actinomycetes are involved in the degradation of both natural and synthetic plastics. Plastics are usually biodegraded aerobically in nature, anaerobically in sediments and landfills and partly aerobically in compost and soil. Carbon dioxide and water are produced during aerobic biodegradation, while anaerobic biodegradation produces carbon dioxide, water and methane [].

It is a general chemical synthesis of the plastic ..

Synthesis and Properties of Polyurethanes Based on Synthetic Polyhydroxybutyrate for ..

Polysciences, Inc., a leading manufacturer of specialty chemicals, and a leading supplier to the particle industry, announced the opening of a new laboratory dedicated to custom synthesis in Warrington, Pennsylvania.

The chemical properties of plastics can be used as criteria for differentiating them into degradable and non-degradable polymers []. Non-biodegradable plastics, usually known as synthetic plastics, are derived from petrochemicals. They have a lot of repetitions of small monomer units; make them a very high molecular weight.

Synthesis and characterization of polyhydroxybutyrate- …

biotechnological production of monomers for chemical polymer synthesis, ..

The biodegradation of polyethylene is known to occur by either Hydro-biodegradation and Oxo-biodegradation. These two mechanisms can be used because of two additives, starch and pro-oxidant, used in the synthesis of biodegradable polyethylene. Starch blended polyethylene has a continuous starch phase that makes the material hydrophilic, and therefore allows it to be catalyzed by amylase enzymes. Microorganisms can easily access, attack and remove this section, thus the polyethylene with the hydrophilic matrix continues to be hydro-biodegraded. If a pro-oxidant additive was used, biodegradation occurs following photodegradation and chemical degradation. If the pro-oxidant is a metal compound, after transition-metal catalyzed thermal peroxidation, biodegradation of low molecular weight oxidation products occurs sequentially []. The process is depicted in .

3. Changes in the chemical properties of the polymer in synthetic media, including the formation or disappearance of functional groups as determined by FTIR, can be measured. The molecular weight and molecular weight distribution of the degraded products or intermediates are observed by techniques such as TLC, GCMS and NMR [].

04.01.2012 · In silico genomics analysis of weed Lantana camara and its proposed application in synthesis of polyhydroxybutyrate
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