臺灣博碩士論文加值系統

本研究是以聚乙烯基酚(PVPh)、聚苯乙烯(PS)與苯氧基樹脂(Phenoxy resin)分別和聚碳酸酯(PC)在不同溫度下，以不同比例混合製作單分子膜。藉由等溫線實驗來測定單分子膜之表面壓(π)隨每分子佔據面積(A)變化的關係(π-A等溫線)以及計算其過剩面積，來探討混合單分子膜的分子間作用力與性質之關係。
等溫線及過剩面積分析中，PS與PC有相類似的等溫線特性，而過剩面積的正負偏差可得知混合系統偏離理想狀態。Phenoxy resin與PC在25℃及40℃下，低表面壓高PC混合比例下為可混合系統。由鬆弛曲線實驗得知，溫度的增加會造成單分子膜穩定性下降。由單分子膜的震盪可得四種高分子在震盪時，會因結構、分子間作用力的差異而對震盪的結果有所影響，再藉由表面膨脹模數｜E*｜app探討單分子膜的震盪與物理意義。

This study is based on Polyvinyl phenol (PVPh), Polystyrene (PS) and a Phenoxy resin with Polycarbonate (PC) at different temperatures in different proportions to produce monolayers. Using isotherm experiments to determine the change of surface pressure - area per molecular isotherm and calculate the excess area in order to investigate the relationship between intermolecular forces and property of mixed monolayer.
The analysis of π-A isotherm and excess area showed that the characteristic of PS and PC was similar. Furthermore, we can know the system deviates from the ideal condition. Phenoxy resin and PC at 25 ℃ and 40℃, under low surface pressure and high mixing ratio of PC a miscible system. On the basis of relaxation curve, the increase of temperature will decrease the stability of the monolayers. The results of oscillation were different because of material structure and intermolecular forces. Furthermore, we can know the oscillation and physical meaning by exploring the surface dilatational modulus｜E*｜app of the monolayers.

目錄
摘要 I
Abstract II
目錄 III
表目錄 V
圖目錄 VII
第一章 緒論 1
1-1 前言 1
1-2 研究目的 2
第二章 文獻回顧 4
2-1 Langmuir 單分子膜的形成 4
2-2 單分子膜的等溫線行為 6
2-3 Langmuir單分子膜的相變化 10
2-4 Langmuir 單分子膜的穩定性 12
2-5 高分子單分子膜之形成條件 14
2-6 熱力學理論分析 17
2-7 鬆弛曲線模擬的探討 18
2-8 單分子膜震盪曲線行為 19
第三章 實驗 21
3-1 實驗藥品 21
3-2 實驗器材 25
3-3 實驗步驟 27
第四章 結果與討論 30
Part1： PVPh、Phenoxy resin、PC及PS純成份系統 30
4-1 表面壓-每分子佔據面積(π-A)等溫線 30
4-2 單分子膜之鬆弛行為 36
4-3 鬆弛曲線之模擬 40
Part2： PVPh、Phenoxy resin及PS與PC混合系統 43
4-4 表面壓-每分子佔據面積(π-A)等溫線 43
4-5 混合單分子膜過剩面積(Aex)的探討 56
4-6 混合單分子膜之鬆弛行為 65
4-7 鬆弛行為之模擬 71
4-8 lnkX對1/T 74
4-9 單分子膜之震盪行為 76
第五章 結論 85
第六章 參考文獻 88

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