Unit+7

Unit 7 – Organic Chemistry Introduction a. Naming compounds b. General types c. Applications d. Etc.

Organic chemisrty is one of the most influential branches of chemistry. Organic means containing carbon. 1.What is Organic chemistry? -This involves the study of compounds and reactions involving carbon.

(Note- Charges with brackets around them indicate charged ion.) Carbon forms 4 bonds, which allows it to have a very unique and diverse chemistry.
 * The exception is carbon oxcides (C0x), carbonides (C4-) and carbonates(Co 3(2-)

> > **__Plastics__** (ex.Polyethylene and Nylon)
 * __Polymers__**
 * Polymers are Large molecules made up ofmany repeating structural units.
 * Teflon typically is about 400 units in length.
 * Bakelite as the first synthetic polymer (1909) it is still inuse today on stovetops because of its heat resistance.
 * Hundreds of other compounds have been developed; many say the last century was the "age of polymers."
 * Plasitc is a polymer that can be molded when heated
 * Thermoplastic polymer- can be melted and molded repeatedly into shapes that are retained when cooled
 * Thermosetting polymer- can be molded once, when cooled it cannot be remelted (ex. Bakelite- burns when over heated)
 * __[[image:http://www.cmu.edu/greenpractices/recycling/recycling_images/plastics.jpg width="259" height="217"]]

Recycling__**
 * The starting point for most polymers is derived from fossil fuels; due to their depleating supply the ability to recycle these products has become extremely important (thermosetting polymers are not easily recycled
 * about 1% of commercial plastics are recycled (20% for paper and 30% for aluminum)
 * Governments are making standard codes on plastics indicating their composition and where they can be recycled