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N—取代马来酰亚胺在开发新材料中的应用 总被引:5,自引:0,他引:5
本文着重介绍了N-取代马来酰亚胺与异丁烯交替共聚合成新型透明材料、用N-取代马来酰亚胺改性有玻璃、聚苯乙烯、聚酰亚胺树脂、ABS树脂,不饱和聚酯等的研究情况,N-取代马来酰亚胺可以显著提高上述材料的耐热性,又保持它们优异的力学性能和工艺性。 相似文献
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为了解决纤维用涂层在长期使用过程中污渍吸附和开裂磨损等技术问题,首先合成末端带有呋喃基团的硅烷改性预聚体,然后制备末端带有呋喃基团的改性纳米 TiO2,最后将硅烷改性预聚体、改性纳米 TiO2以及 4,4′-亚甲基双( N-苯基马来酰亚胺)(BMI)进行 DA(Diels-Alder)反应得到树脂 /纳米填料一体化复合涂层,并对涂层的结构和性能以及自清洁、自修复效果进行研究。结果表明:涂层损伤能够在不影响疏水性能的前提下得到修复,同时纤维涂层具有很强的光降解污染物的功能,使该涂层具备自清洁和自修复双重特性,提高了纤维用涂层的使用寿命。 相似文献
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耐热丙烯酸酯结构胶的研制 总被引:1,自引:0,他引:1
考查了环氧丙烯酸酯预聚体、马来酰亚胺树脂、硅酸铝等3种不同类型耐热材料,对丙烯酸酯胶粘剂耐热性能的影响。制备了1种耐热丙烯酸酯结构胶,其常温剪切强度达23.12 MPa,120℃时为12.03 MPa,150℃时为7.64 MPa。 相似文献
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通过悬浮聚合法将N-苯基马来酰亚胺单体与苯乙烯、丙烯腈共聚合成SAN树脂,得到最佳工艺条件,并考察其对ABS树脂性能的影响。 相似文献
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研究了甲基丙烯酸甲酯-N-环己基马来酰亚胺-苯乙烯和甲基丙烯酸甲酯-N-环己基马来酰亚胺-丙烯腈两种三元共聚体系中,单体用量对共聚物玻璃化温度和溶度参数的影响.结果表明,苯乙烯、丙烯腈的加入能提高N-环已基马来酰亚胺的反应活性.共聚物的玻璃化温度随着N-环己基马来酰亚胺用量的增加升高,随着苯乙烯用量的增加先升高后降低,而随着丙烯腈用量的增加降低.共聚物的溶度参数随着N-环己基马来酰亚胺用量的增加增大,而随着苯乙烯、丙烯腈用量的增加降低. 相似文献
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呋喃(双烯体)/马来酰亚胺(亲双烯体)Diels-Alder环加成反应(DA反应)是应用于聚合物复合材料自愈合的最重要的DA反应之一。总结了呋喃/马来酰亚胺DA反应的六种类型,包括各种呋喃衍生物与马来酰亚胺衍生物之间的线性聚合、支化和交联DA反应,含呋喃聚合物与含马来酰亚胺聚合物之间、主链含呋喃衍生物聚合物与马来酰亚胺衍生物之间、侧链含呋喃衍生物聚合物与马来酰亚胺衍生物之间和多种呋喃衍生物与马来酰亚胺衍生物之间共聚合的DA反应,综述了呋喃/马来酰亚胺DA反应在聚合物复合材料本体自愈合应用的微胶囊、中空纤维、微管道技术和聚合物/纤维、聚合物/纳米材料(纳米二氧化硅、层状硅酸盐、石墨烯)界面自愈合的研究进展。 相似文献
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本文叙述苯乙烯与N-(4-羟基苯基)马来酰亚胺共聚体的合成方法,并用它作为重氮萘醌系紫外光致抗蚀剂成膜树脂,得到了高分辨率(1.6μ)的正性图形,光刻图形的耐热形变温度达到了240℃以上。 相似文献
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A maleimide and 2‐aminobenzonitrile (MIan) based benzoxazine has been synthesized and characterized. This benzoxazine has maleimide and nitrile functionalities that can polymerize, resulting in a highly crosslinked material. Incorporation of the imide group increases the shear viscosity compared to monofunctional benzoxazines but not as high as difunctional benzoxazines, allowing good processibility, while maintaining excellent mechanical and thermal properties. Catalysts, epoxy copolymerization, and rubber interlayer methods are utilized to optimize the composite properties. The 60% carbon cloth‐reinforced resin has achieved the flexural strength over 1 GPa. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 548–558, 2006 相似文献
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Wentong Wang 《Desalination》1988,70(1-3):137-142
The preparation and performance of the new composite reverse osmosis membrane were investigated. The ultrathin semipermeable barrier of the composite melamine-formaldehyde-furfuralcohol copolymerization membrane for reverse osmosis is formed on the porous surface of polysulfone support membrane by copolymerization between melamine-formaldehyde prepolymer and furfuralcohol under sulfuric acid catalyst. In the condition of operation pressure 20 kg/cm2 and concentrated water flux 20 L/h, the membrane has 95% rejection and 0.3 m3/m2.d flux for 1500 ppm aqueous sodium chloride. The factors affecting the reverse osmosis performance of the composite membrane, such as amount of the prepolymer and catalyst, the temperature of the polymerization and the properties of additives etc, were investigated. 相似文献
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Novel polymers obtained by reaction of aromatic biscyanamide and bismaleimide compounds were investigated. By heating 4,4′-methylene bis(o-methylphenylcyanamide) (BMCA) with 4,4′-methylene bis (phenylmaleimide) (BMI) at 120°C in N,N-dimethylformamide (DMF), prepolymers were obtained by the conversion of cyanamide to cyanoguanidine and the addition of an imino group on the double bond of maleimide. The prepolymer showed suitable behavior for thermosetting resin used in molding, i.e., it melted temporarily and then polymerized in an isochronal heating process (5°C/min). On heating above 170°C, the prepolymer could polymerize with ring formation of melamine and isomelamine. The cured product had good heat-resistant properties. 相似文献
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To improve the miscibility and tensile strength of the ABCPs material, we conducted a study in which maleimide end-capped
polyurethane was prepared from the PU prepolymer and maleimide by reacting 4,4′-diphenylmethane diisocyanate (MDI) with poly(tetramethylene
oxide) (PTMO), whose molecular weights were Mn=600∼700 (PA650), Mn=900∼1050 (PA1000) and Mn=1900∼2100 (PA2000). AB crosslinked polymers (ABCPs), synthesized from the PU prepolymer and the novolac resin, were studied.
The study confirmed the occurrence of phase mixing. Further investigation through dynamic mechanical analysis (DMA), differential
scanning calorimetry (DSC) and transmission electron microscopy (TEM) revealed that the tensile strength and phase mixing
were,improved. 相似文献
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以二苯甲烷双马来酰亚胺和二烯丙基双酚A为共聚单体,在适当的催化剂等作用下,制备了一种改性双马来酰亚胺共聚树脂。本文对这种改性的双马来酰亚胺共聚树脂的溶解性能、固化反应动力学和固化机理进行了讨论;对体系固化物的机电热性能及其胶粘剂的高低温粘接性能也进行了研究。 相似文献
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选择丙烯酸酯作为自由基型预聚物,3,4–环氧环己基甲基–3,4环氧环己基甲酸酯作为阳离子型预聚物,三丙二醇二丙烯酸酯为活性稀释剂,2,2–二甲基–α–羟基苯乙酮和三芳基硫鎓盐为光引发剂来制备一种混杂固化光敏树脂。将聚氨酯丙烯酸酯(PUA)加入到上述制备的光敏树脂中,探究PUA作为辅助预聚物对光敏树脂性能的影响,用超声分散法制备了纳米氧化石墨烯(GO)改性光敏树脂复合材料。当PUA的质量分数为20%时,力学性能最优;GO对光敏树脂的力学性能有改善的作用,拉伸强度从17.84 MPa最大增强至27.84 MPa,提高了56%;且该混合体系的体积收缩率在3%左右,线收缩率也很小。 相似文献
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研究了N-苯基马来酰亚胺在苯乙烯中的溶解度和络合性能,以及聚合温度、N-苯基马来酰亚胺浓度、引发剂种类及浓度、加料方式等因素对共聚合速率的影响,进一步分析和计算该体系的动力学和热力学参数。 相似文献