Molten bisphenol‐A polycarbonate‐poly(ethylene terephthalate) blends. I. Identification of the reactions

Godard, Pierre; Dekoninck, Jm.; Devlesaver, V.; Devaux, Jacques

doi:10.1002/pola.1986.080241214

Cited by 143 publications

(78 citation statements)

References 11 publications

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“…Wilfong'" has reported numerous interchange catalysts. In the case of polyesters, tetra-butoxy titanate has proved to be a very active catalyst, [112] whereas, for example, aromatic phosphites are recommended for transreactions between polyamides." During melt blending, complete interchange with formation of a random copolycondensate can occur at high processing temperatures (e.g.…”

Section: Interchange Chemistrymentioning

confidence: 99%

Strategies for compatibilization of polymer blends

Koning

Duin

Pagnoulle

et al. 1998

Progress in Polymer Science

745

241

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Section: Interchange Chemistrymentioning

confidence: 99%

Strategies for compatibilization of polymer blends

Koning

Duin

Pagnoulle

et al. 1998

Progress in Polymer Science

745

241

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“…Many articles investigated transesterification reactions occurring in PET/PC blends by using a transesterification catalyst to facilitate the process of reaction in PET/PC blends rich in PET [15][16][17]. Titanium tetrabutoxide and lead acetate hydrate were found to be the most active catalysts [10,11,[15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Titanium tetrabutoxide and lead acetate hydrate were found to be the most active catalysts [10,11,[15][16][17][18]. Recently lanthanum acetyl acetonate hydrate and cobalt acetyl acetonate were used in PET/PC blending [19,20].…”

Section: Introductionmentioning

confidence: 99%

Effects of composition and transesterification catalysts on the physico-chemical and dynamic properties of PC/PET blends rich in PC

Al-Jabareen¹,

Illescas

Maspoch

et al. 2010

J Mater Sci

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Melt blending of polycarbonate (PC)/poly (ethylene terephthalate) (PET) rich in PC at absence/present of different type of tranesterification catalysts was carried out by using reactive extrusion method. The thermal, dynamic, and morphological properties were studied. It was found that all blends are formed by a PC matrix and a semicrystalline (12-20% of crystallinity) of PET dispersed phase. The addition of a catalyst in the mixing process promotes a refined and homogeneous dispersion of PET, as well as it enhances the dynamicmechanical behavior of PC/PET blends compared with PC. These effects are attributed to the emulsifying effect of the PC-PET copolymer generated by transesterification. Additionally, this copolymer contributes to the miscibility between phases as demonstrated by the glass transition (T g ) shift of PC phase and PET phase.

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“…polycarbonate-g-poly(methyl methacrylate) copolymer, during the melt blending. In this respect, Rabeony et al [10], and Kyu et al [11] observed that PC could react with PMMA as result of transesterification between the ester groups of PMMA and the carbonate groups of PC, as it was also reported for other systems, such as PC and polyesters [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 83%

Reactive compatibilization of PC/PVDF polymer blends by zinc carboxylate containing poly(methylmethacrylate) ionomers

Moussaif¹,

Pagnoulle²,

Jérôme³

2000

Polymer

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Polycarbonate (PC) has been reacted with a random copolymer of methylmethacrylate and 6 mol% of acrylic acid (poly(MMA-co-AA)) and with this copolymer neutralized (totally or not) by Zn cations. When conducted in solution at 240°C, the reaction leads to the grafting of PC onto the copolymer neutralized or not. In the melt at 235°C, the grafting reaction occurs only when the copolymer is at least partly neutralized. Whatever the experimental conditions (solution or bulk), PMMA does not react with PC, which confirms that the acidolysis of PC is at the origin of the grafting reaction.Poly(vinylidene fluoride) (PVDF) and PC have been melt blended at 235°C in the presence of the poly(MMAco-AA) copolymer totally neutralized or not by Zn cations, the purpose being the reactive formation of PMMAg-PC copolymer that would act as compatibilizer for the PC/PVDF blend. The phase morphology and the mechanical properties of the compatibilized PC/PVDF blends have been compared with the parent non-reactive polyblends. Compared to the modification of PVDF by 20 wt% of PMMA, the use of 20 wt% of the partly neutralized poly(MMA-co-AA) copolymer decreases further the average size of the dispersed phase, enhances its adhesion to the matrix, and results in a considerable increase of the elongation at break. The beneficial effect of zinc carboxylate in the PMMA copolymer is explained by the grafting of PC onto PMMA at the interface.

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Molten bisphenol‐A polycarbonate‐poly(ethylene terephthalate) blends. I. Identification of the reactions

Cited by 143 publications

References 11 publications

Strategies for compatibilization of polymer blends

Strategies for compatibilization of polymer blends

Effects of composition and transesterification catalysts on the physico-chemical and dynamic properties of PC/PET blends rich in PC

Reactive compatibilization of PC/PVDF polymer blends by zinc carboxylate containing poly(methylmethacrylate) ionomers

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