Lecture29 - EMA 6165 - Polymer Physics Crystallinity...

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07/21/11 EMA 6165 Polymer Physics - Lecture 1 EMA 6165 - Polymer Physics Crystallinity Lecture 29 Professor Anthony Brennan Department of Materials Science & Engineering University of Florida
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07/21/11 EMA 6165 Polymer Physics - Lecture 2 Crystallin e State Definition: Crystalline state diffracts x- rays and exhibits first order thermodynamic transitions. This is too specific since DSC, FTIR, NMR can measure crystalline behavior not measureable with x-rays. NO polymer is 100% crystalline . Polymers are Semi-Crystalline
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Outline General Features Crystal Architecture Single Crystal Morphology Spherulites Growth Processes Properties
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07/21/11 EMA 6165 Polymer Physics - Lecture 4 Crystalline State Key Characteristics Degree of crystallinity Number of crystalline unities emanating from nuclei Average diameter or size of crystallite Average distance between crystallites
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07/21/11 EMA 6165 Polymer Physics - Lecture 5 Crystalline State Three key factors that lead to crystallization Minimization of bond rotation energy i.e. P.E. ~1 to 5 kcal/mol.
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Lecture29 - EMA 6165 - Polymer Physics Crystallinity...

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