Polypropylene-graft-maleic anhydride

Tidjani, A., Wald, O., Pohl, M. M., Hentschel, M. P., and Schartel, B. 2003. Polypropylene-graft-maleic anhydride-nanocomposites. I. Characterization and thermal stability of nanocomposites produced under nitrogen and in air. Polymer Degradation and Stability 82 133M0. 

The addition of a polypropylene grafted maleic anhydride (PP-g-MA) compatibilizer into polypropylene-co-ethylene/polybutylene succinate blends and the subsequent irradiation allowed prevention of degradation mechanisms leading to mechanical stability. The cyclic anhydride group of the PP-g-MA first permitted compatibilizion of both polypropylene-co-ethylene and polybutylene succinate and a second action as an "energy sink."... 

Polypropylene-graft-maleic anhydride. See Propylene/MA copolymer Poly (propylene oxide). See Polypropylene glycol... 

Synonyms Maleic anhydride grafted polypropylene Polypropylene-graft-maleic anhydride Propylene/maleic anhydride copolymer... 

Jang, L. W., Kim, E. S., Kim, H. S., and Yoon, J.-S. 2005. Preparation and characterization of polypropylene/ clay nanocomposites with polypropylene-graft-maleic anhydride. Journal of Applied Polymer Science 98 1229-1234. 

PP-g-MA Polypropylene grafted maleic anhydride pph Parts per hundred PPO Polyphenylene oxide PPS Poly (p-phenylene sulfide)... 

Simultaneous influence of polypropylene-graft-maleic anhydride (MAPP) and silane-treated hemp fibers (HF) on morphology, thermal and mechanical properties of high-flow polypropylene (PP) modified with poly[styrene-b-(ethylene-co-butylene)-b-styrene] (SEBS) was studied. Thermal stability of HF was improved... 

N. Dayma, B.K. Satapathy, Morphological interpretations and micromechanical properties of polyamide-6/polypropylene-grafted-maleic anhydride/nanoclay ternary nanocomposites, Materials and Design 31 (10) (2010) 4693-4703. 

The type of fiber, polymer matrix, and coupling agent are of importance in order to improve the mechanical properties of the resulting composites. Also, the performance of the composites depends on several factors, such as chemical composition, microfibrillar, cell dimensions, and the interaction between the fiber and the polymer matrix. The effect of WG on the tensile properties of sisal fibers was reported [75]. The composites were compounded with sisal fibers and polypropylene matrix. The chemical modification treatments for the composites apphed were WG solution and polypropylene-grafted maleic anhydride copolymer. 

PP-g-MA, polypropylene-graft-maleic anhydride DB, decabromodiphenyl oxide OMT, organoclay modified with the ammonium cation on the clay contained a methyl group, tallow (containing 70, 25,4, and 1 mol% of CIS, C16, C14, and C12 carbon chains, respectively), and two hydroxyethyl groups AO, antimony trioxide. 

On the other hand, Chen and showed that in polypropylene-graft-maleic anhydride (PE-g-MA) nanocomposite based on a dodecyl sidfate-modified LDH, thermal stability is depressed bnt charring of the polymer is enhanced. So it seems that the intercalated anion, in particular its acidity, are main factors that influence the degradation pathway by a charring mechanism. 

Diagne, M. Gueye, M. Vidal, L. Tidjani, A. Thermal stability and fire retardant performance of photo-oxidized nanocomposites of polypropylene-graft-maleic anhydride/clay. Polym. Degrad. Stab. 2005, 89, 418-426. 

Hemmati M, Narimani A, Shariatpanahi H (2011) Study on morphology, rheology and mechanical properties of thermoplastic elastomer polyolefin (TPO)/carbon nanotube nanocomposites with reference to the effect of polypropylene-grafted-maleic anhydride (PP-g-MA) as a compatibilizer. Int J Polym Mater 60 384—397... 

PP- -MA Polypropylene-graft-maleic anhydride UHMWPE Ulttahigh-molecular weight... 

Cengiz [53] studied a recycled polypropylene (rPP)/organoclay nanocomposite containing ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) and polypropylene-grafted-maleic anhydride (PP-g-MA) compatibilisers. The rPP/ Cloisite 15A nanocomposite provided the highest improvement in mechanical properties. PP-g-MA was indicated as a better compatibiliser and furthermore, the improvement of both tensile and impact properties were better at a compatibiliser to clay ratio of 3. In addition, a significant enhancement of dispersion level as well... 

Lai et al. [29] discussed this issue for a polypropylene nanocomposite using as compatibilizers polypropylene grafted maleic anhydride (PP-g-MA) and poly-ethylene-octene elastomer grafted maleic anhydride (POE-g-MA). Another aspect is related to system crystallinity and its morphology. The optical transmittance for nanocomposite without compatibilizers was generally higher than that of the translucent PP resin. 

Polyester-amide based polymeric dyes were obtained as GemTone Colorants from DayGlo Color Corp. These were obtained as commercially available materials in yellow, red, and blue. The wax additives types are outlined in Table 1. The polyethylene and polypropylene-graft-maleic anhydride (MA) copolymers and... 

Figure 2 shows two plots of color strength vs. residual haze for PP molded with polymeric yellow dye. The higher sloped line ( slope = 0.507) is the yellow without additives, and the shallower line (slope = 0.298) is the yellow with a polypropylene-graft-maleic anhydride copolymer (PP-g-MA) with a 47,000 number average molecular weight and an acid number of 15. The ratio of PP-graft-MA additive to colorant is 2.5. From this best fit, the reduction of added haze can then be calculated as a percent based on the reduction of the slope of the line. 

Tables 2 and 3 give the results of haze reduction for the polymeric red and polymeric yellow dye, respectively, based on the type of analysis described for Figure 2. Haze reductions in both the red and yellow polymeric dye were observed with the addition of both polyethylene-based Zn ionomer and polypropylene-alt-maleic anhydride copolymer. The polypropylene-graft-maleic anhydride copolymers were not effective in reducing haze in the polymeric red, but did show haze reduction in the yellow, although relatively higher loadings of this wax were necessary to give similar results to the Zn ionomer or the PP-alt-MA materials. The polyethylene-graft-maleic anhydride copolymer, the succinic anhydride- terminated isotactic PP, and the PP homopolymer wax did not reduce haze with the polymeric red. The C30 a-olefin-alt-maleic anhydride copolymer and the polyethylene-based calcium ionomer both produced increases in haze when molded with the polymeric red.

Figure 2. Residual Haze vs. Color Strength for polymeric yellow with and without a polypropylene-graft-maleic anhydride additive.

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