WebApr 6, 2024 · The chain length in a polymer can also be described in terms of a degree polymerization n, which represents an average number of "mer" units in a chain Again two approaches are possible: Number average n n: Weight-average n w: where m is a mer molecular weight if the polymer is built up of different mer units (copolymer) m is … WebMar 8, 2024 · We report an efficient synthesis route for the formation of gold/silver-core–PE-shell nanohybrids in a simple self-assembly approach using PE with strong aurophilicity …
An example of chain growth polymer is. - Toppr
WebMar 8, 2024 · We report an efficient synthesis route for the formation of gold/silver-core–PE-shell nanohybrids in a simple self-assembly approach using PE with strong aurophilicity and argentophilicity, via thiol- and trithiocarbonate terminated moieties. This united the unique properties of polyethylene (PE) with gold and silver nanoparticles, using the well-defined … WebSep 12, 2024 · Chain growth is used to polmerize a wide array of compounds that contain carbob-carbon double bonds (alkenes or olefins) as well as a variety of cyclic monomers. Both approaches are needed to … in a town it\u0027s rainy one third of days
CHEM 109C BRUICE CH.27 Flashcards Quizlet
WebJul 17, 2024 · Answer/Explanation. 4. Which of the following statements is not true? (a) Natural rubber is frans-polyisoprene. (b) Buna-S is addition copolymer of butadiene and styrene. (c) Natural rubber is cis 1, 4-polymer of isoprene. (d) Vulcanisation makes rubber hard due to cross linkages with sulphur. Answer/Explanation. 5. WebDec 21, 2024 · Chain-growth polymers involve a series of reactions each of which consumes a reactive particle and produces another similar one. The reactive particles may be free radicals or ions (cation or anion) to which monomers get added by a chain reaction. Polymers were first classified according to polymerization method by Wallace Carothers in 1929, who introduced the terms addition polymer and condensation polymer to describe polymers made by addition reactions and condensation reactions respectively. However this classification is inadequate to describe a polymer which can be made by either type of reaction, for example nylon 6 which can be made either by addition of a cyclic monomer or by condensation of a linear mon… inappropriate easter memes