In-situ compatibilization of poly(lactic acid) and poly(butylene adipate-co-terephthalate) blends by using dicumyl peroxide as a free-radical initiator

Ma, Piming; Cai, Xiaoxia; Zhang, Y.; Wang, S.; Dong, Weifu; Chen, Muyang; Lemstra, Piet J.

doi:10.1016/j.polymdegradstab.2014.01.025

Cited by 187 publications

(111 citation statements)

References 36 publications

Supporting

Mentioning

107

Contrasting

Order By: Relevance

“…These results are different from PHB grafting MA systems where the decomposition temperature of PHB was greatly improved by grafting MA. The differences should result from different degradation mechanism between the two polymers [24,29,30]. In addition, the styrene monomer did not improve the thermal decomposition behavior of the PLA.…”

Section: Thermogravimetric Analysis Of Maleated Plamentioning

confidence: 93%

“…However, the MA on PLA-g-MA was not clearly detected by FT-IR because of: (1) corresponding to the symmetric and asymmetric stretching of carbonyl groups of cyclic MA respectively [21,24]) and the strong absorption peak of PLA-(around 1756 cm were provided as supporting data ( Figure S1). Therefore, the titration methodology was used to determine the D g of MA.…”

Section: Analysis On Pla Grafting Ma Systemmentioning

confidence: 99%

“…However, the optimal St/MA ratio for D g in the poly(propylene) system was reported to be 1/1 [21,23]. In St-assisted melt grafting of MA onto the poly(hydroxybutyrate) (PHB) system, the highest D g of MA was achieved at the St/MA ratio of 2/1 [24]. Apparently, the St-assisted grafting mechanism of MA in the polyester system (e.g., PLA) is different from that in the polyolefin system.…”

Section: Grafting Degree and Grafting Efficiency Of Ma On Pla Chainsmentioning

confidence: 99%

“…Although considerable work has been devoted to polyolefin-g-MA/St systems rather less attention has been paid to St-assisted free-radical grafting of MA onto polyesters. It was reported in a recent study that the D g of MA on poly(hydroxybutyrate) was increased from 0.24 wt % to 0.83 wt % by the assistance of St co-monomer [24]. In another study, MA was grafted onto PLA in the presence of St (MA/St = 2/1) and the resulting PLA-g-MA/St was used as a compatibilizer in PLA/soy protein blends.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Melt Free-Radical Grafting of Maleic Anhydride onto Biodegradable Poly(lactic acid) by Using Styrene as A Comonomer

Jiang

et al. 2014

Polymers

View full text Add to dashboard Cite

Maleic anhydride (MA) was grafted onto poly(lactic acid) (PLA) in the presence of styrene (St) by using a free-radical grafting methodology. The grafting degree (D g ) of MA was increased from 0.65 wt % to 1.1 wt % with the St/MA ratio up to 2/1, where the grafting efficiency (E g ) of MA was 27%. However, both D g and E g were decreased with further increasing of the St/MA ratio to 4/1. The D g of MA increased with MA concentration and showed a maximum at 180 °C in the temperature range of 165 °C-190 °C. The grafting mechanisms of MA in the presence of St are analyzed based on titration, thermogravimetric analysis and infrared results, i.e., MA is grafted onto PLA chains via single monomers and a charge-transfer-complex (CTC) at St/MA ratios of ≤ 1/1, while dominantly via St-co-MA oligomers at St/MA ratios of around 2/1. Copolymerization rather than grafting of St and MA occurs at St/MA ratios of around 4/1. The thermal stability of PLA was compromised to a certain extent by the grafting of MA, resulting in reductions in the decomposition temperature (T d-5% ) and molecular weight of the PLA. In addition, the crystallization and melting temperatures of the PLA were slightly reduced after the grafting.

show abstract

Section: Thermogravimetric Analysis Of Maleated Plamentioning

confidence: 93%

Section: Analysis On Pla Grafting Ma Systemmentioning

confidence: 99%

Section: Grafting Degree and Grafting Efficiency Of Ma On Pla Chainsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Melt Free-Radical Grafting of Maleic Anhydride onto Biodegradable Poly(lactic acid) by Using Styrene as A Comonomer

Jiang

et al. 2014

Polymers

View full text Add to dashboard Cite

show abstract

“…It was observed that higher concentration of DCP made the dispersed phase split, which caused that the ductility of the PCL phase could not be imparted to the PLA matrix. Ma et al [97] studied the impact of DCP during insitu compatibilization of poly(lactic acid) and poly (butylene adipate-co-terephthalate) (PLA/PBAT) blends. It was proved that using of DCP initiated free radicals in the blends leading to complicated products such as PLA-g-PBAT copolymers, which act like interface compatibilizers between PLA and PBAT.…”

Section: Aliphatic Polyesters Blendsmentioning

confidence: 99%

Reactive extrusion of bio-based polymer blends and composites – Current trends and future developments

Formela¹,

Zedler²,

Hejna³

et al. 2018

Express Polym. Lett.

104

View full text Add to dashboard Cite

Abstract.Reactive extrusion is a cost-effective and environmentally-friendly method to produce new materials with enhanced performance properties. At present, reactive extrusion allows in-situ polymerization, modification/functionalization of polymers or chemical bonding of two (or more) immiscible phases, which can be carried out on commonly used extrusion lines. Although reactive extrusion has been known for many years, its application for processing of bio-based polymer blends and composites is a relatively new direction of scientific research. This work presents a literature review on recent advances in the processing of bio-based polymer blends and composites via reactive extrusion. We described compatibilization mechanisms for different types of biodegradable polymeric materials based on: (i) aliphatic polyesters, (ii) aliphatic polyesters/starch and (iii) aliphatic polyester/natural rubber systems. A special attention was focused on conventional and dynamic cross-linking of bio-based polymer blends and composites as an effective way to prepare new materials with unique properties e.g. biodegradable thermoplastic elastomers or shape-memory materials. Advantages and limitations affecting future trends in development of biodegradable polymer blends and composites reactive extrusion are also discussed.

show abstract

Bio‐derived Polymers for Packaging

Kasemsiri

Pongsa

Okhawilai

et al. 2022

High‐Performance Materials From Bio‐based Feedstocks

View full text Add to dashboard Cite

In-situ compatibilization of poly(lactic acid) and poly(butylene adipate-co-terephthalate) blends by using dicumyl peroxide as a free-radical initiator

Cited by 187 publications

References 36 publications

Melt Free-Radical Grafting of Maleic Anhydride onto Biodegradable Poly(lactic acid) by Using Styrene as A Comonomer

Melt Free-Radical Grafting of Maleic Anhydride onto Biodegradable Poly(lactic acid) by Using Styrene as A Comonomer

Reactive extrusion of bio-based polymer blends and composites – Current trends and future developments

Bio‐derived Polymers for Packaging

Contact Info

Product

Resources

About