lecture 8 - Lecture 8 Big Molecules: Solids Condensation...

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Lecture 8 Big Molecules : Solids Key Idea: Solids consist of atoms bonded in larger clusters, chains, layers, or networks. Condensation Reactions + Water What happens to the properties as the chain length increases? heat Condensation Reactions “Like dissolves like” Monomers and Polymers Glucose: a monosaccharide Cellulose: a polysaccharide with beta linkages Starch: A polysaccharide with alpha linkages alpha beta Starch or Cellulose? Cellulose Starch Polyethylene Polymerize Low density polyethylene (LDPE) and High density polyethylene (HDPE) Which figure is LDPE? Which product is HDPE? Saran Wrap Milk jug
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Hydrophilic or Hydrophobic Water loving or water fearing Cellulose (cotton) Sodium polyacrylate (diaper material) Polystyrene (packing material) Interaction with water? Interaction with acetone? acetone CH 3 COCH 3 Intermolecular Forces Hydrophilic or hydrophobic? Cellulose (Cotton) Hydrophilic or hydrophobic? Sodium
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This note was uploaded on 04/03/2008 for the course CHEM 1A taught by Professor Nitsche during the Fall '08 term at University of California, Berkeley.

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lecture 8 - Lecture 8 Big Molecules: Solids Condensation...

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