Chandrajit zala (9 risultati)

Condizione: New.

Condizione: New. In English.

Condizione: New.

PAP. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Condizione: New. Print on Demand.

Condizione: New. PRINT ON DEMAND.

Kartoniert / Broschiert. Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Hadiyal SanjaySanjay Hadiyal was born in Morbi. He is currently working as an Assistant Professor at RK University Rajkot. He is pursuing a PhD in Saurashtra University. He was also worked in R&D Department at Piramal Helth care Ahme.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Polymers are long-chain molecules that contain tens of thousands of monomers. For this reason, polymers are called macromolecules. Examples of naturally available polymers are cellulose, cotton, starch, wool, proteins, and silk. The synthetic polymers are polystyrene, polyethylene, and nylon. The beginning of polymer science may be traced back to the mid-nineteenth century. Charles Goodyear in 1830 succeeded in transforming the sticky latex of natural rubber into a useful elastomer for tire use. Christian F. Schonbein in the year 1847 produced cellulose nitrate out of cellulose-nitric acid reaction. Leo Hendrik Baekeland in 1907 produced Bakelite (phenol-formaldehyde resin). Glyptal (unsaturated-polyester resin) was developed as a protective coating resin by General Electric in 1912. In 1930, researchers at DuPont in the USA produced more exotic materials like nylon and Teflon. In 1938, polystyrene and in 1939 polyethylene were prepared by scientists at ICI in England. …