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首页> 外文期刊>Journal of Applied Polymer Science >SYNTHESIS OF NOVEL POLY(PHTHALAZINONE ETHER SULFONE KETONE)S AND IMPROVEMENT OF THEIR MELT FLOW PROPERTIES
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SYNTHESIS OF NOVEL POLY(PHTHALAZINONE ETHER SULFONE KETONE)S AND IMPROVEMENT OF THEIR MELT FLOW PROPERTIES

机译：新型聚（邻苯二甲酮醚砜砜酮）的合成及其熔体流动性能的改进

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A series of novel poly(phthalazinone ether sulfone ketone)s was synthesized from bis(4-fluorophenyl) ketone, bis(4-chlorophenyl) sulfone, and 4-(4-hydroxybenzyl)-2,3-phthalazin-1-one through nucleophilic substitution polycondensation. The synthesized polymers exhibited surprisingly high glass transition temperatures and had excellent thermooxidative properties. The melt viscosities of these synthesized polymers are generally too high to be processed by common processing methods because of their very high glass transition temperatures and amorphous microstructure. An attempt was made to reduce their melt viscosities by solution blending the synthesized polymer with two kinds of oligomers: low molecular weight poly(phthalazinone ether sulfone ketone) and commercial poly(ether sulfone). The results proved that the addition of the oligomers to the polymers led to a marked decrease in melt viscosities. Furthermore, no obvious changes were observed in the thermal and mechanical properties of these blends after oligomer additions. (C) 1997 John Wiley & Sons, Inc. [References: 15]
机译：由双（4-氟苯基）酮，双（4-氯苯基）砜和4-（4-羟基苄基）-2,3-酞嗪-1-酮合成了一系列新型的聚酞菁醚砜酮。亲核取代缩聚。合成的聚合物表现出令人惊讶的高玻璃化转变温度，并具有优异的热氧化性能。这些合成的聚合物的熔体粘度通常太高而不能通过普通的加工方法加工，因为它们的玻璃化转变温度和非晶态微结构非常高。试图通过将合成的聚合物与两种低聚物进行溶液共混以降低其熔体粘度：低分子量聚（酞嗪酮醚砜酮）和市售聚（醚砜）。结果证明，向聚合物中添加低聚物导致熔体粘度显着降低。此外，在添加低聚物之后，未观察到这些共混物的热和机械性能的明显变化。 （C）1997 John Wiley＆Sons，Inc. [参考：15]

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