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| Pakistan Research Repository | Home |
Title of Thesis |
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| Author(s) Khalid Mahmood Zia |
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| Institute/University/Department Details University of Agriculture, Faisalabad, Pakistan. |
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| Session |
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| Subject Chemistry |
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| Number of Pages 185 |
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| Keywords (Extracted from title, table of contents and abstract of thesis) Universal nutrient constraint, alkaline calcareous soils. |
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Abstract |
| Download Full Thesis |
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| S. No. | Chapter | Title of the Chapters | Page | Size (KB) |
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| 1 | 1 | Introduction | 1 |
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| 2 | 2 | Review of Literature | 6 |
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| 2.1 | Polyurethane (PU) | 6 | ||
| 2.2 | Structure of Polyurethane | 7 | ||
| 2.3 | Structure Property Relationship | 7 | ||
| 2.4 | Synthesis of Polyurethane based on alkane diols | 9 | ||
| 2.5 | UV-irradiation of Polyurethane | 16 | ||
| 2.6 | Biodegradable Polymer | 20 | ||
| 2.7 | Biodegradable Polyurethane | 22 | ||
| 2.8 | Chitin Properties and Sustainability for use in Polyurethane | 23 | ||
| 2.9 | Evaluation of Biocompatibility of Polyurethane | 26 | ||
| 2.10 | XRD Studies of Chitin and Polyurethane | 27 | ||
| 2.11 | Shape Memory Polymers &Shape Memory Polyurethane | 28 | ||
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| 3 | 3 | Material & Methods | 32 |
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| 3.1 | Chemicals/instruments | 33 | ||
| 3.2 | Synthesis of Polyurethane | 34 | ||
| 3.3 | Characterization | 37 | ||
| 3.4 | Part–I: Polyurethane Extended with α, ω-alkane diols | 49 | ||
| 3.5 | Part-II: Chitin Based Polyurethane | 54 | ||
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| 4 | 4 | Results and Discussions | 62 |
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| 4.1 | Part–I (a): Polyurethane Elastomers (PUEs) Extended with α, ω-alkane diols | 62 | ||
| 4.2 | Part–I (b):UV irradiation of Polyurethane Extended with a, w-alkane diols | 94 | ||
| 4.3 | Part-II: Chitin Based Polyurethane | 123 | ||
| 4.4 | Effect of Diisocyanates and Chain Extender Structure: XRD Studies and Evaluation of Biocompatibility | 158 | ||
| 4.5 | Shape Memory Polyurethane (SMPU) | 177 | ||
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5 | Summary | 190 |
 77 KB |
| Literature Cited | 196 |
103 KB |
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