Plasticization of poly(lactic acid) (PLA) through chemical grafting of poly(ethylene glycol) (PEG) via in situ reactive blending

Choi, Kyung-Man; Choi, Myeon‐Cheon; Han, Dong-Hun; Park, Taesung; Ha, Chang‐Sik

doi:10.1016/j.eurpolymj.2013.05.027

Cited by 142 publications

(64 citation statements)

References 35 publications

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“…However, the melting points are reduced from 174 o C to 171 o C with the PNFR content increasing because PNFR is treated as the impurity to reduce the melting point according to the phase equilibrium theory of thermodynamics [30]. The melting enthalpy of pure PLA is 35.8 J/g and is lower than that of the PLA composites with PNFR, which is owing to the increase of the intrinsic crystalline phase in matrix and the intermolecular interaction between PLA and PNFR [31,32]. From Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 96%

A novel efficient polymeric flame retardant for poly (lactic acid) (PLA): Synthesis and its effects on flame retardancy and crystallization of PLA

Liao

Dai

et al. 2015

Polymer Degradation and Stability

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Section: Accepted Manuscriptmentioning

confidence: 96%

A novel efficient polymeric flame retardant for poly (lactic acid) (PLA): Synthesis and its effects on flame retardancy and crystallization of PLA

Liao

Dai

et al. 2015

Polymer Degradation and Stability

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“…The use of various low‐molecular‐weight plasticizers, such as citrates or adipates, leads to the migration of the plasticizers within the PLA matrix, due to their high molecular mobility. To avoid this migration problem, many high‐molecular‐weight plasticizers including poly(ethylene glycol) (PEG), poly(propylene glycol), polyester diol or poly(diethylene adipate) have been used . The plasticizing properties of PEG, of various molecular weights, in PLA matrices have been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

Influence of plasticizers on thermal properties and crystallization behaviour of poly(lactic acid) films obtained by compression moulding

Muller

Jiménez

González‐Martínez

et al. 2016

Polymer International

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“…Maleic anhydride (MA) [5,7], amide [8], glycidyl methacrylate [9], N-vinyl pyrrolidone [10], PEG [11] and chitosan [12] were grafted onto PLA. MA is popular among these grafting pendants due to its difficulty in homopolymerization and the benefit of cell attachment and proliferation [13].…”

Section: Introductionmentioning

confidence: 99%

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

Jiang

et al. 2014

Polymers

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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.

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Plasticization of poly(lactic acid) (PLA) through chemical grafting of poly(ethylene glycol) (PEG) via in situ reactive blending

Cited by 142 publications

References 35 publications

A novel efficient polymeric flame retardant for poly (lactic acid) (PLA): Synthesis and its effects on flame retardancy and crystallization of PLA

A novel efficient polymeric flame retardant for poly (lactic acid) (PLA): Synthesis and its effects on flame retardancy and crystallization of PLA

Influence of plasticizers on thermal properties and crystallization behaviour of poly(lactic acid) films obtained by compression moulding

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

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