2006
DOI: 10.1016/j.polymer.2006.04.040
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Functionalization of polyolefins with maleic anhydride in melt state through ultrasonic initiation

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Cited by 50 publications
(51 citation statements)
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References 28 publications
(41 reference statements)
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“…13,14 The MAH content of the grafting copolymer was determined through the refluxing of approximately 0.75 g samples in 250 mL of xylene for 0.5 h. Then 15 mL of an ethanol solution of KOH (0.09 mol L −1 ) was added with phenolphthalein as an indicator and the mixture became pink. To make sure that the polymers were completely dissolved, the mixture was refluxed for 4 h and, then, titrated at room temperature.…”
Section: Measurement Of the Grafting Percentage Of Pp-g-mah-stmentioning
confidence: 99%
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“…13,14 The MAH content of the grafting copolymer was determined through the refluxing of approximately 0.75 g samples in 250 mL of xylene for 0.5 h. Then 15 mL of an ethanol solution of KOH (0.09 mol L −1 ) was added with phenolphthalein as an indicator and the mixture became pink. To make sure that the polymers were completely dissolved, the mixture was refluxed for 4 h and, then, titrated at room temperature.…”
Section: Measurement Of the Grafting Percentage Of Pp-g-mah-stmentioning
confidence: 99%
“…These confirmed that the St and MAH were grafted onto PP. Figure 3 shows the 13 C NMR spectrum of PP-g-MAH-St. It could be found that the spectrum exhibited characteristic peaks in the range of 50-80 ppm due to the carbons adjacent to C O obtained from MAH and the range of 80-100 ppm due to the C C obtained from disproportion termination.…”
Section: Characterization Of the Grafting Copolymersmentioning
confidence: 99%
“…El PEBD, ha sido modificado con anhídrido maleico (AM), un gran problema que se presenta durante la funcionalización del PEBD con anhídrido maleico por radicales libre es la baja reactividad y/o homopolimerización del AM [2], [3], [4]. Algunos reportes encontrados en la literatura muestran que las cantidades de AM que se injertan en el PEBD son pequeñas (menores del 3.0 %) [5], [6].…”
Section: Introductionunclassified
“…Una reacción colateral que se lleva a cabo durante la funcionalización del PEBD con AM es el entrecruzamiento entre las cadenas del PEBD, esto reduce la formación de radicales del AM y el injerto de este en el PEBD [5], [6] . Los poliésteres polioles altamente ramificado presentan alto empaquetamiento estructural, un gran número de grupos funcionales en su periferia, baja viscosidad en solución y en fundido [7], [8], bajo grado de enredamiento molecular [9].…”
Section: Introductionunclassified
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