Blends of Renewable Poly(butylene succinate) and Poly(propylene carbonate) Compatibilized with Maleic Anhydride Using Quad Screw Reactive Extrusion

Three types of anhydride (maleic anhydride (MA), phthalic anhydride (PA) and pyromellitic dianhydride (PMDA)) were melt blended to end-cap poly(propylene carbonate) (PPC) by reactive extrusion.

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Structure and Properties of Maleic Anhydride Capped Poly(propylene carbonate) Produced by Reactive Extrusion and Effect of Resistance Time on Reaction Efficiency

Industrial & Engineering Chemistry Research ◽

10.1021/ie502122j ◽

2014 ◽

Vol 53 (37) ◽

pp. 14544-14551 ◽

Cited By ~ 10

Author(s):

Guo Jiang ◽

Jian Feng ◽

Shui-Dong Zhang ◽

Han-Xiong Huang

Keyword(s):

Maleic Anhydride ◽

Propylene Carbonate ◽

Reactive Extrusion ◽

Structure And Properties ◽

Reaction Efficiency ◽

Poly Propylene

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Enhanced Poly(propylene carbonate) with Thermoplastic Networks: A Cross-Linking Role of Maleic Anhydride Oligomer in CO2/PO Copolymerization

Polymers ◽

10.3390/polym11091467 ◽

2019 ◽

Vol 11 (9) ◽

pp. 1467 ◽

Cited By ~ 1

Author(s):

Lijun Gao ◽

Meiying Huang ◽

Qifeng Wu ◽

Xiaodan Wan ◽

Xiaodi Chen ◽

...

Keyword(s):

Weight Loss ◽

Maleic Anhydride ◽

Propylene Carbonate ◽

Permanent Deformation ◽

Cross Linking ◽

Biodegradable Poly ◽

One Step ◽

Ft Ir ◽

Poly Propylene

Cross-linking is an effective way to enhance biodegradable poly(propylene carbonate) (PPC) from CO2 and propylene oxide (PO). Cross-linked PPC can be prepared by one-step terpolymerization of multifunctional third monomers with CO2 and PO. However, few such third monomers are available. Each molecule of maleic anhydride oligomer (MAO) contains more than two cyclic anhydride groups. Here, we use it to synthesize PPC with cross-linked networks by adding a small quantity of MAO (0.625–5 wt% of PO) in CO2/PO copolymerization that was catalyzed by zinc glutarate. The formation of networks in the prepared copolymers was confirmed by the presence of gel in copolymers combined Fourier transform infrared spectroscopy (FT-IR), 1H NMR, and the improved mechanical properties. The 5% weight-loss degradation temperatures and maximum weight-loss degradation temperatures greatly increase up to 289.8 °C and 308.8 °C, respectively, which are remarkably high when compared to those of PPC. The minimum permanent deformation of the copolymers closes to 0, while that of PPC is 173%. The maximum tensile strength of the copolymers is 25.5 MPa higher than that of PPC, reaching 38.4 MPa, and it still has some toughness with the elongation at break of 25%. The above phenomena indicate that MAO that was inserted in PPC chains play a cross-linking role, which results in enhanced thermal stability, dimensional stability, and mechanical strength, comprehensively.

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Polypropylene grafted with maleic anhydride and styrene as a compatibilizer for biodegradable poly(propylene carbonate)/polypropylene

Journal of Engineered Fibers and Fabrics ◽

10.1177/1558925019849714 ◽

2019 ◽

Vol 14 ◽

pp. 155892501984971

Author(s):

Zheng Tian ◽

Lisha Pan ◽

Qing Pan

Keyword(s):

Fourier Transform ◽

Infrared Spectroscopy ◽

Maleic Anhydride ◽

Fourier Transform Infrared Spectroscopy ◽

Propylene Carbonate ◽

Ring Opening ◽

Fourier Transform Infrared ◽

Resonance Spectroscopy ◽

Ring Opening Reactions ◽

Poly Propylene

Polypropylene grafted with maleic anhydride and styrene [PP- g-(MAH- co-St)] was prepared by melt grafting. Fourier transform-infrared spectroscopy showed that maleic anhydride in the form of cyclic anhydride was successfully grafted onto the main chains of polypropylene. PP- g-(MAH- co-St) acts as a compatibilizer for the poly(propylene carbonate)/polypropylene meltblown nonwoven fabric slices. The effect of different contents and grafting proportions of PP- g-(MAH- co-St) on the structure and performance of the poly(propylene carbonate)/polypropylene slices was investigated. The poly(propylene carbonate)/polypropylene slices had favorable compatibility, tensile properties, thermal stability, and degradability, and their melt flow rates were reduced by the addition of PP- g-(MAH- co-St). Fourier transform-infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy spectra showed that ring-opening reactions occur between the anhydride functional groups of PP- g-(MAH- co-St) and poly(propylene carbonate). Ring-opening reactions, chemical bonds, cocrystallization, increased interface adhesion forces, and reduced interfacial tension may be the mechanisms by which PP- g-(MAH- co-St) acts a compatibilizer for poly(propylene carbonate)/polypropylene slices.

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