Iranian Gum Tragacanth (IGT) is among the most natural polymers which has interesting properties such as nontoxic nature, biodegradability and high resistance to bacterial attacks making it applicable for tissue scaffolds, protective clothing, and wound healing.
Iranian Gum Tragacanth (IGT) is the most common natural polymers which has found with lots of applications recently, and has attractive characteristic like nontoxic nature, biodegradability, higher resistance, antibacterial and good biological properties to bacterial attacks.
Out of these, polyvinyl alcohol (PVA) is one of the most popular polymer, which is employed as a matrix due to its high solubility in water and its good compatibility with many salts, including zinc acetate and copper nitrate (Chuangchote and Supaphol 2006; He et al. 2010).
But in response to pressure from the chemicals industry, polymers, which are most commonly found in plastics, landed outside of the scope of the draft.
HPMC and PEG are nonbiodegradable synthetic polymers which are most widely used [ 26].
These lignans are present in trace amounts in a range of foods and their concentrations may be insufficient to explain the high concentrations of mammalian lignans in biofluids; other precursors, such as lignin polymers which are most abundant in whole-grain cereal products, may actually be the main precursors of the mammalian lignans (114).
Most common absorbent materials are based on polymers, which are oil-based.
However, the most common ones are based on organic polymers which have some degree of toxicity.
Repetition of this process leads to extremely-long-chain hydrocarbon polymers, which include many of the most familiar plastics, such as polyethylene and polypropylene.
