Chem 115 Lecture_21

Chem 115 Lecture_21 - CHM 115 Lecture 21, Polymers 11/5/07...

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Lab: Organic reactions. Preparation of luminol Reading, HW, and Learning objectives are available on the web. Exam 3: Wednesday, 8:30 pm, through Lecture 22, LO, RA, Lab of this week CHM 115 Lecture 21, Polymers 11/5/07
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Polymers Polymer: A substance composed of molecules characterized by the multiple repetition of one or more species of atoms or groups of atoms covalently linked to each other in amounts sufficient to provide a set of properties that do not vary markedly with the addition or removal of one or a few of the constitutional units. Polyethylene
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Biopolymers While the term polymer in popular usage suggests ________________________ ", polymers comprise a large class of natural and synthetic materials with a variety of properties and purposes. Natural polymer materials such as ____________________ have been in use for centuries. Biopolymers such as proteins (for example hair, skin and part of the bone structure) and nucleic acids play crucial roles in biological processes. A variety of other natural polymers exist, such as cellulose , which is the main constituent of wood and paper.
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Natural rubber occurs in the liquid known as latex, which comes from a rubber tree. Soft and sticky
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Chem 115 Lecture_21 - CHM 115 Lecture 21, Polymers 11/5/07...

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