PPT-Introduction to Polymers

Overview What are polymers How are polymers named What is a polymer crosslinker Polymers are all around us Contact lenses Sport equipment Clothing polyester Plastic containers Synthetic. Introduction Degradable polymers have recently become highly attractive materials in solving the increasingly seri ous environmental problems due to plastic waste Current massproduced petroleumbased polymers are Formations and linkages. What are polymers?. Alkene. molecules have the ability to add onto one another and produce large molecules these are polymers. . Therefore what are monomers?. The process of these large molecules forming is termed addition polymerisation.. C2: Chapter 2. Learning Objectives. To be able to . list. and . state. uses of commonly used polymers. To be able to . recall and describe. the conditions required for the production of LDPE, HDPE, thermosetting and thermosoftening polymers. Polymers. . C.X.C objectives. Students should be able to :. Define polymers. Distinguish between addition and condensation as reactions in the formation of polymers. Name examples of polymers formed by:. AND . POLYMERIZATION. By. Dr Rashid Hassan. Assistant Professor. RIHS. ISLAMABAD. 1. POLYMER. Poly = Many mer = Units. I.e. a material made up of many units.. Properly defined as:. Chemical compound composed of large organic molecules formed by the union of many repeating small monomer units.. Polymers. are long molecules made of repeating units, called . monomers. .. In general. :. Specific example. :. Forces between polymer chains: Crosslinks. Weak: Intermolecular . force crosslinks. Strong: Colvalent. AAN009 Keywords: polymers, processing, performance, MFR, rheometer 1 AAN009 performance without sacricing the performance of the nal product (impact resistance, wrappage, etc.). Due to its sensiti D 15.  Explain the general formation and structure of carbon-based polymers, including synthetic polymers, such as polyethylene, and biopolymers, such as carbohydrate. . Content Standard . What is a monomer and what is a polymer?. and . MER. means . repeating unit. .. Polymers. are macromolecules formed by joining of repeating structural units on a large scale.. The repeating structural units are called . Monomers. .. Polymerisation. What are polymers. ?. Where can you find polymers in your everyday life?. How are polymers synthesized?. What kinds of polymers can be recycled?. How are polymers recycled?. What are some unique applications for polymers?. Phenomenon:. . experiment by pouring the gel. Have you ever seen anything that acts like this gel?. What is happening to the molecules to make it act this way?. Show the beads in the jar and how they will keep falling out after you start them.. Noah Brubaker. June 29. th. , 2011. Hydrocarbons. ex: Alkanes. 1 – Meth-. 2 – Eth-. 3 – Prop-. 4 – But-. 5 . – . Pent-. 6 – Hex-. 7 – . Hept. -. 8. . – Oct-. 9. . – Non-. 10 – Dec-. M.P. KESAVAN M.Sc., Ph.D.,. Assistant Professor. Department of Chemistry. HKRH College. Uthamapalayam. .. 1. Polymers ???. 2. Polymers . may be naturally found in plants and animals (natural polymers) or may be man-made (synthetic polymers).. → . the . synthesis of new polymers by modification of existing . polymers using . a variety of chemical . reactions. 1) . the esterification of cellulose, crosslinking of . polyisoprene. , hydrolysis.