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Fungal cell walls may also contain chitosan-glucan complexes, which are similar copolymers but have chitosan instead of chitin. Chitin and chitosan are closely related molecules: greater than 40% of the polymer chain of chitin is made of acetylated glucosamine units, whereas greater than 60% of chitosan is made of deacetylated glucosamine units ...
The relative amount of each isomer in the polymer is dependent on the mechanism of the polymerization reaction. [ citation needed ] Anionic chain polymerization, which is initiated by n -Butyllithium , produces cis -1,4-polyisoprene dominant polyisoprene. 90–92% of repeating units are cis -1,4-, 2–3% trans -1,4- and 6–7% 3,4-units.
Polymer science or macromolecular science is a subfield of materials science concerned with polymers, primarily synthetic polymers such as plastics and elastomers. The field of polymer science includes researchers in multiple disciplines including chemistry , physics , and engineering .
Polymer chemistry is a sub-discipline of chemistry that focuses on the structures, chemical synthesis, and chemical and physical properties of polymers and macromolecules. The principles and methods used within polymer chemistry are also applicable through a wide range of other chemistry sub-disciplines like organic chemistry , analytical ...
Journal of Polymer Science is a peer-reviewed journal of polymer science currently published by John Wiley & Sons. It was originally established as the Journal of Polymer Science in 1946 by Interscience Publishers and the founding editor Herman F. Mark , but it was split in various parts in 1962.
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with a = 2–130 and b = 15–67. Poloxamers are nonionic triblock copolymers composed of a central hydrophobic chain of polyoxypropylene (poly(propylene oxide)) flanked by two hydrophilic chains of polyoxyethylene (poly(ethylene oxide)). The word poloxamer was coined by BASF inventor, Irving Schmolka, who received the patent for these ...
In polymer chemistry, radical polymerization (RP) is a method of polymerization by which a polymer forms by the successive addition of a radical to building blocks (repeat units).