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表面能低、惰性及低极性是聚丙烯难以被附着的重要原因。选择附着树脂对聚丙烯表面改性有助于涂料润湿和附着成膜。附着树脂主要包括聚烯烃类、有机硼引发类、端叠氮基芳香聚合物等。聚烯烃类附着树脂一种是聚丙烯的氯化物或马来酸酐接枝物,以及它们的再功能化扩链产品,另一种是其他聚烯烃的接枝物。有机硼和端叠氮基芳香聚合物是原位化学接枝的附着树脂新类型,拓展了聚烯烃类的适用温度和适用环境。 相似文献
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将商品氯化聚丙烯还原后作为原子转移自由基聚合的引发剂,在溴化铜/2,2'-联吡啶的催化下与聚苯乙烯接枝共聚.核磁共振氢谱分析结果表明聚丙烯与聚苯乙烯发生了接枝共聚;接枝率随聚合时间的增加而增大. 相似文献
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改性氯化聚丙烯的制备方法及其混合物;粘附促进剂及其用于聚烯烃基材的涂料;聚丙烯容器;聚丙烯嵌段共聚物型未取向表面保护膜;聚丙烯多层阻隔型薄膜;含有接枝间规聚丙烯粘附促进剂的多层薄膜;用于聚合物基材涂料的粘附促进剂。[编者按] 相似文献
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含氟两亲防污聚合物的合成与表征 总被引:2,自引:0,他引:2
利用原子转移自由基聚合(ATRP)技术合成了含氟两亲防污聚合物聚乙二醇-聚苯乙烯-聚全氟己基乙基丙烯酸酯(PEG-b-(PS-b-PFHEA)4).首先利用ATRP制备了含聚乙二醇与聚苯乙烯的两亲星形嵌段聚合物PEG-b-PS4其中的C-CI活化点进一步引发含氟单体-全氟己基乙基丙烯酸酯(PFHEA)的活性聚合.利用核磁共振氢谱(1H-NMR)和凝胶色谱(GPC)对其结构组成与分子质量及其分布进行表征.该含氟共聚物膜表面,以聚苯乙烯为锚定点,疏水的含氟嵌段具有低表而能,而亲水的PEG嵌段与水接触具有较低的界而能.该聚合物具有微相分离功能,可导致白组装现象的发生.这种具有两亲性的聚合物涂层可抑制蛋白质吸附或海洋生物附着,可作为良好的防污材料. 相似文献
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氯化等规聚丙烯的合成与表征 总被引:3,自引:0,他引:3
采用溶液氯化方法,对用固相接枝得到的等规聚丙烯接枝马来酸酐共聚物进行氯化反应,制得氯含量为30% ̄50%(质量分数)的氯化等规聚丙烯(MCPP),用FT-IR,X-衍射,DSC和^13C NMR表征了产物的结构,MCPP树脂可广泛用于印刷油墨和涂料等。 相似文献
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PS-PMMA-PBMA三嵌段聚合物的ATRP合成及表征 总被引:1,自引:0,他引:1
以氯化亚铜(CuCl)/2,2’-联吡啶(bpy)为催化体系,苄基氯为引发剂,采用本体原子转移自由基聚合(ATRP)方法,引发苯乙烯(St)聚合,合成出大分子引发剂聚苯乙烯(PS-Cl)。用此大分子引发剂在溶液体系下引发第二单体甲基丙烯酸甲酯(MMA)聚合,合成出PS-PMMA-Cl二嵌段聚合物。再以此二嵌段聚合物为大分子引发剂引发甲基丙烯酸丁酯(BMA)聚合,合成出三嵌段聚合物PS-PMMA-PBMA。运用凝胶色谱、红外光谱、核磁共振氢谱及差示扫描量热技术等对三嵌段聚合物进行表征。 相似文献
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Commercially available chlorinated polypropylene has been used as a macroinitiator for the Cu(0)‐mediated atom transfer radical polymerization of methyl methacrylate and tert‐butyl acrylate to obtain well‐defined graft copolymers. The relatively narrow molecular weight distribution in the graft copolymers and linear kinetic plots indicated the controlled nature of the copolymerization reactions. Both Fourier transform infrared and 1H NMR studies confirmed that the graft reactions had taken place successfully. After graft copolymer formation, tert‐butyl groups of poly(tert‐butyl acrylate) side chains were completely converted into poly(acrylic acid) chains to afford corresponding amphiphilic graft copolymers. © 2016 Society of Chemical Industry 相似文献
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We aimed at the synthesis of well-define PS-b-P4VP by using atom transfer radical polymerization in two-step process. First, polystyrenes with benzyl bromide end group (PS-Br; by ATRP) were prepared as macroinitiator for the next ATRP of 4-vinyl pyridine and characterized these polymers from 1H-NMR and MALDI-TOF. Comparing with MALDI-TOF-MS, 1H-NMR and GPC analyses, this indicates that the formation of the block copolymer can be observed. During the polymerizations, molecular weight distribution and kinetics have been evaluated from GPC traces and 1H-NMR analyses. We further characterized the thermal properties of these block polymers by DSC and TGA. DSC measurement on the PS-b-P4VP block copolymers exhibited two glass transitions, indicating that the resulting block copolymers are phase separated. Two maxima differential peaks were observed on the TGA trace for the PS-b-P4VP block copolymers might be assigned to the decomposition of the P4VP blocks at 380 ○C and the PS blocks at higher temperature. 相似文献
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