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首页> 外文期刊>Journal of Applied Polymer Science >DETAILED MULTITECHNIQUE SPECTROSCOPIC SURFACE AND BULK CHARACTERIZATION OF PLASMA POLYMERS DEPOSITED FROM 1-PROPANOL, ALLYL ALCOHOL, AND PROPARGYL ALCOHOL
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DETAILED MULTITECHNIQUE SPECTROSCOPIC SURFACE AND BULK CHARACTERIZATION OF PLASMA POLYMERS DEPOSITED FROM 1-PROPANOL, ALLYL ALCOHOL, AND PROPARGYL ALCOHOL

机译：1-丙醇，烯丙醇和丙基丙醇沉积的等离子体聚合物的详细的多光谱光谱表面和本体表征

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摘要

Three monomers with different degrees of unsaturation, 1-propanol, allyl alcohol, and propargyl alcohol, are plasma-deposited to obtain alcohol functions containing polymers. To obtain information on the behaviors of these monomers in the plasma, the polymers deposited in the reactor and in the postdischarge region are characterized by high-energy resolution XPS, IR, HREELS, elemental analysis, and chemical derivatization. XPS results show that oxygen-rich polymers can be obtained from the unsaturated monomers at low power for both regions or at high power in the postdischarge region. In the reactor at high power, fragmentation of the monomer leads to the elimination of oxygen fragments and ablation reactions during the polymerization process. Detailed structural information on the chemical structure and content of functional groups are obtained by simulation of the XPS C1s core levels of the polymers before and after derivatization with trifluoroacetic anhydride. In soft conditions, allyl alcohol leads to the formation of polymers with a relatively low degree of crosslinking and a high hydroxyl content (53-72%). However, the high resolution of the XPS spectrometer allows one to detect the presence of secondary or tertiary alcohol functions resulting from chain branching reactions in this polymer. Results from this multitechnique characterization indicate also that the hydroxyl conversion and crosslinking reactions are more pronounced for poly(1-propanol) and poly(propargyl alcohol). Alcohol, ether, and carbonyl functions are present in equivalent quantities in poly(propargyl alcohol) while poly(1-propanol) contains mainly ether functions (50%). The presence or absence of alcohol functions at the extreme surface of the polymers in relation to the chain mobility and the tendency of hydrogen bonding between hydroxyl groups was studied by HREELS. (C) 1996 John Wiley & Sons. [References: 25]
机译：等离子沉积具有不同不饱和度的三种单体，即1-丙醇，烯丙醇和炔丙醇，以获得包含聚合物的醇官能团。为了获得有关这些单体在等离子体中的行为的信息，沉积在反应器中和放电后区域中的聚合物的特征在于高能量分辨率XPS，IR，HREELS，元素分析和化学衍生化。 XPS结果表明，可以从两个区域的低功率或在放电后区域的高功率从不饱和单体获得富氧聚合物。在高功率的反应器中，单体的断裂导致聚合过程中氧片段的消除和烧蚀反应。通过模拟在用三氟乙酸酐衍生化之前和之后，聚合物的XPS C1s核心水平，可以获得有关化学结构和官能团含量的详细结构信息。在柔软条件下，烯丙醇会导致形成具有相对较低的交联度和较高的羟基含量（53-72％）的聚合物。但是，XPS光谱仪的高分辨率可以检测这种聚合物中链支化反应产生的仲醇或叔醇功能。这种多技术表征的结果还表明，对于聚（1-丙醇）和聚（炔丙醇），羟基转化和交联反应更加明显。醇，醚和羰基官能团在聚（炔丙醇）中的含量相等，而聚（1-丙醇）主要包含醚官能团（50％）。通过HREELS研究了与链迁移率和羟基之间氢键键合趋势有关的聚合物极端表面上是否存在醇官能团。 （C）1996年John Wiley＆Sons。 [参考：25]

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