Оценка:
Опубликованно: 01.12.1996.
Язык: Английский
Уровень: Средняя школа
Литературный список: Нет
Ссылки: Не использованы
  • Эссе 'Bioplastics: Polylactide aliphatic copolymer', 1.
Фрагмент работы

Bioplastics are a new generation of biodegradable plastics made from synthetic biopolymers; its components are derived entirely or almost entirely from renewable raw materials. Biopolymers are an environmental friendly alternative to petroleum-based polymers (traditional plastics).
Polylactide aliphatic copolymer is a synthetic biopolymer made from a mixture of lactide and aliphatic polyester. A copolymer is made from 2 or more different monomers. The monomer lactide is made from lactic acid (see fig2), which is a methyl-substituted glycolic acid that can be produced by the fermentation o…

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