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CONTENTS
 ABSTRACT ( Chinese and English)        I
 ACKNOWLEDGEMENT            III
 CONTENTS            V
 LIST OF FIGURES            VII
 LIST OF TABLES            XI
 CHAPTER 1     INTRODUCTION                1
 CHAPTER 2     THEORETICAL BACKGROUND            3
 2.1   Polymer Blends                    3
 2.1.1 Thermodynamics for Miscibility in Binary and
 Ternary Polymer Blends      3
 2.1.2 Thermal Transition Behavior          5
 2.2  Crystallization Kinetics    6
 2.2.1 Avrami Theory        6
 2.2.2 Ozawa Theory        8
 2.3   Polymer Nanocomposites      8
 2.3.1 Layered Silicates        8
 CHAPTER 3     EXPERIMENTAL SECTION      11
 3.1 Materials          11
 3.2 Vermiculite Modification      12
 3.3 Preparation of Polymer Nanocomposites  13
 3.4 Enzymatic Degradation      13
 3.5 Apparatus          13
 CHAPTER 4     RESULTS AND DISCUSSION      16
 4.1 Phase Behavior and Crystal Morphology of
 Ternary Polymer Blend      16
 4.2 Polymer Nanocomposites of poly(L-lactic acid),
 poly(methyl methacrylate), and poly(ethylene
 oxide) with organically Modified Clays  32
 4.3 Crystallization Kinetics of Ternary Polymer
 Blend with Organoclays      44
 4.4 Enzymatic and thermal Degradation of Polymer
 Nanocomposites with OVMT and Clo10A    87
 CHAPTER 5    CONCLUSIONS      98
 REFERENCE            100
 CURRICULUM VITAE          106
 
 
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