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  2. Polyhydroxyalkanoates - Wikipedia

    en.wikipedia.org/wiki/Polyhydroxyalkanoates

    For lack of nitrogen and phosphorus they produce a kilogram of PHA per three kilograms of sugar. The simplest and most commonly occurring form of PHA is the fermentative production of poly-beta-hydroxybutyrate [poly(3-hydroxybutyrate), P(3HB)], which consists of 1000 to 30000 hydroxy fatty acid monomers.

  3. Bioplastic - Wikipedia

    en.wikipedia.org/wiki/Bioplastic

    2007: Metabolix inc. market tests its first 100% biodegradable plastic called Mirel, made from corn sugar fermentation and genetically engineered bacteria. (Digregorio 2009) [ 100 ] 2012: A bioplastic is developed from seaweed proving to be one of the most environmentally friendly bioplastics based on research published in the journal of ...

  4. Biopolymer - Wikipedia

    en.wikipedia.org/wiki/Biopolymer

    Starch being biodegradable and renewable is used for many applications including plastics and pharmaceutical tablets. Cellulose: Cellulose is very structured with stacked chains that result in stability and strength. The strength and stability comes from the straighter shape of cellulose caused by glucose monomers joined by glycogen bonds. The ...

  5. Biodegradable plastic - Wikipedia

    en.wikipedia.org/wiki/Biodegradable_plastic

    A plastic is considered a bioplastic if it was produced partly or wholly with biologically sourced polymers. A plastic is considered biodegradable if it can degrade into water, carbon dioxide, and biomass in a given time frame (dependent on different standards). Thus, the terms are not synonymous. Not all bioplastics are biodegradable. [44]

  6. Polymerization - Wikipedia

    en.wikipedia.org/wiki/Polymerization

    The light may be absorbed either directly by the reactant monomer (direct photopolymerization), or else by a photosensitizer which absorbs the light and then transfers energy to the monomer. In general, only the initiation step differs from that of the ordinary thermal polymerization of the same monomer; subsequent propagation, termination, and ...

  7. Polyhydroxybutyrate - Wikipedia

    en.wikipedia.org/wiki/Polyhydroxybutyrate

    PHB-derived plastics are attractive because they are compostable and derived from renewables and are bio-degradable. ICI had developed the material to pilot plant stage in the 1980s, but interest faded when it became clear that the cost of material was too high, and its properties could not match those of polypropylene .

  8. Polymer chemistry - Wikipedia

    en.wikipedia.org/wiki/Polymer_chemistry

    Synthetic polymers are ubiquitous in commercial materials and products in everyday use, such as plastics, and rubbers, and are major components of composite materials. Polymer chemistry can also be included in the broader fields of polymer science or even nanotechnology , both of which can be described as encompassing polymer physics and ...

  9. Renewable polyethylene - Wikipedia

    en.wikipedia.org/wiki/Renewable_Polyethylene

    It can be made from various feedstocks including sugar cane, sugar beet, and wheat grain. [1] The final product is indistinguishable from conventional polyethylene (except by radiocarbon dating), and thus is recyclable in the same chain established for conventional PE.