Quantification of the maleic anhydride grafted onto polypropylene by chemical and viscosimetric titrations, and FTIR spectroscopy

Sclavons, Michel; Franquinet, P.; Carlier, Vincent; Verfaillie, G.; Fallais, Isabelle; Legras, Roger; Laurent, Mathieu Y.; Thyrion, F. C.

doi:10.1016/s0032-3861(99)00377-8

Cited by 156 publications

(129 citation statements)

References 21 publications

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“…Then, they were characterized by infrared spectroscopy, by considering two specific peaks [31]: the first one at 1790 cm -1 concerns the carbonyl groups, and the second one at 1167 cm -1 concerns the CH 3 groups. The ratio of these peak areas is the carbonyl index (Index = A 1790 /A 1167 ), which can be related to the percentage of grafted MA using a calibration curve [26,32] …”

Section: Grafting Quantificationmentioning

confidence: 99%

Grafting of maleic anhydride on polypropylene by reactive extrusion: effect of maleic anhydride and peroxide concentrations on reaction yield and products characteristics

Berzin

Flat

Vergnes

2013

Journal of Polymer Engineering

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A series of polypropylenes (PPs) grafted with maleic anhydride (MA), prepared by reactive extrusion in a twin screw extruder with different contents of peroxide and MA, was characterized. For each sample, the amount of grafted MA, the molecular weight distribution, the viscoelastic properties in small amplitude oscillatory shear and the transition temperatures and enthalpies were measured. The respective influence of initial MA and peroxide concentrations on these parameters was characterized. In particular, it was shown that the rheological properties are only controlled by the molecular weight, whatever the way it has been obtained, by varying either MA content or peroxide concentration. Moreover, it is clearly shown that the presence of MA tends to enhance the PP degradation due to the peroxide.

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Section: Grafting Quantificationmentioning

confidence: 99%

Grafting of maleic anhydride on polypropylene by reactive extrusion: effect of maleic anhydride and peroxide concentrations on reaction yield and products characteristics

Berzin

Flat

Vergnes

2013

Journal of Polymer Engineering

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“…It is obvious from these figures the presence of new peaks at 1720 cm -1 and at 1787 cm -1 when MAH is grafted successfully onto PE. The band at 1787 cm -1 is due to the asymmetric stretching modes of carbonyl (C=O) group of saturated maleic anhydride, units while the band at 1720 cm -1 belongs to the symmetric stretching of carbonyl (C=O) of maleic acid grafted onto PE [20][21][22]. …”

Section: Ft-ir Spectroscopy Of Pe-g-mahmentioning

confidence: 99%

Enhancement of Polyolefins Compatibility with Natural Fibers through Chemical Modification

Abdelaal¹,

El‐Mossalamy²,

Bahaffi³

2012

AJPS

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In the current study, polyethylene (PE) was used as representative example of polyolefins and has been chemically modify through grafting with maleic anhydride. Conditions of the chemical modification process have been adjusted to obtain higher grafting yield with maleic anhydride and the obtained product has been characterized with conventional techniques such as FT-IR spectroscopy as well as with some chemical tests. A suitable amount of saw dust as representative example of natural fibers has been collected and prepared in the normal way to be suitable for casting with PE to attain Wood Plastic Composite (WPC). The obtained materials have been tested regarding their some mechanical, physical and chemical characteristics.

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“…(1), which increases with the increased grafting degree as shown in Figure 1. The weak peak at 1720 cm À1 existing in some samples is the result of the carboxylic acid caused by the hydrolysis of anhydride group, 26 and the peak at 1072 cm À1 is assigned to the symmetric ring stretching of ¼ ¼CAOAC¼ ¼ group in MAH. 23 At the same time, the characteristic peak of HLPIB at 1390 and 1366 cm À1 for the CAH stretching vibrations of the methyl groups (A(CH 2 AC(CH 3 ) 2 ) n A) in the main chain remains nearly constant, which can be used as internal standard, 27 which refers to (I 1390cm À1 þ I 1366cm À1) listed in eq.…”

Section: Characterization Of Graft Productmentioning

confidence: 99%

Graft copolymerization of maleic anhydride onto low‐molecular‐weight polyisobutylene through solvothermal method

Gong

2009

J of Applied Polymer Sci

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The free‐radical graft copolymerization of maleic anhydride (MAH) onto highly reactive low molecular weight polyisobutylene was conducted by the use of benzoyl peroxide as an initiator through the solvothermal method. Fourier transform infrared spectra and 1H‐NMR spectra confirmed that maleic anhydride was successfully grafted onto highly reactive low molecular weight polyisobutylene backbone, and the grafting mechanism also was proposed. The effect of benzoyl peroxide content, MAH concentration, total reactant amount in the reaction vessels, reaction temperature and time, and different kinds and volumes of solvents on MAH's degree of grafting was investigated in detail. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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Quantification of the maleic anhydride grafted onto polypropylene by chemical and viscosimetric titrations, and FTIR spectroscopy

Cited by 156 publications

References 21 publications

Grafting of maleic anhydride on polypropylene by reactive extrusion: effect of maleic anhydride and peroxide concentrations on reaction yield and products characteristics

Grafting of maleic anhydride on polypropylene by reactive extrusion: effect of maleic anhydride and peroxide concentrations on reaction yield and products characteristics

Enhancement of Polyolefins Compatibility with Natural Fibers through Chemical Modification

Graft copolymerization of maleic anhydride onto low‐molecular‐weight polyisobutylene through solvothermal method

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