Glass Transitions in Polylactides

Baker, Gregory L.; Vogel, Erin B.; Smith, Milton R.

doi:10.1080/15583720701834208

Cited by 105 publications

(95 citation statements)

References 95 publications

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“…[ 55 ] On the other hand, it has been reported that hyperbranched polyesters terminated with long enough alkyl chains not only have a lower T g , but show several different crystalline phases since the length of the linear parts is suffi cient for formation of crystalline domains. [ 56 ] The performed X-ray studies by Hult and co-workers [57 ] on AB 2 monomer based hyperbranched polyesters showed that hyperbranched macromolecules with long terminal alkyl chains crystallize via intramolecular interactions, whereas in the case of hyperbranched polyesters with shorter alkyl chains the crystallization takes place intermolecularly by the interpenetration of end-groups from adjacent molecules.…”

Section: Sample Catalyst a )mentioning

confidence: 99%

Acyclic Triene Metathesis Polymerization of Plukenetia Conophora Oil: Branched Polymers by Direct Polymerization of Renewable Resources

Akintayo

Mutlu

Kempf

et al. 2011

Macro Chemistry & Physics

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Oil from the Plukenetia conophora seed, a tropical oilseed consisting mainly of linolenic acid, is polymerized via acyclic triene metathesis using different ruthenium benzylidene and indenylidene catalysts to yield highly branched and functionalized polyesters. The influence of the synthesis conditions on the structure and molar mass characteristics of the obtained hyperbranched polyesters as well as an in‐depth melt and solution material property investigation are presented.

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Section: Sample Catalyst a )mentioning

confidence: 99%

Acyclic Triene Metathesis Polymerization of Plukenetia Conophora Oil: Branched Polymers by Direct Polymerization of Renewable Resources

Akintayo

Mutlu

Kempf

et al. 2011

Macro Chemistry & Physics

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“…[1][2] Also, it will undoubtedly continue to be one of the important research areas in future life. [10][11][12][13][14][15][16][17] Novel versatile biomaterials are needed day after day for growing pharmaceutical and biomedical industry. [3][4][5] PEG based copolymers of poly(lactide), poly(glycolide), and poly(lactide-co-glycolide) (PLGA) are one of the most preferred thermosensitive biodegradable polymers in biomedical field.…”

Section: Introductionmentioning

confidence: 99%

“…MePEG-PDIPG diblock copolymers (6,7,8,9,10) L-diisopropyl glycolide (L-DIPG) ( (11,12,13,14,15,16) Poly(ethylene glycol) (PEG) (5) Sn(Oct) 2 The journal's standard Terms & Conditions and the Ethical guidelines still apply.…”

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confidence: 99%

Synthesis and properties of novel diisopropyl-functionalized polyglycolide–PEG copolymers

Arıcan

Mert

2015

RSC Adv.

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Because of the importance of glycolide-based polymers in materials and medical applications, we synthesized alternative novel thermosensitive biomaterials to be possible candidates to those well-known polymers. After the synthesis of ldiisopropyl glycolide monomer was performed in two steps, novel PEG based poly(diisopropyl glycolide) diblock and triblock copolymers (MePEG-PDIPG, PDIPG-PEG-PDIPG) were synthesized with high conversions by ring opening polymerization. The molar mass distributions of copolymers were very narrow, and NMR measurements confirmed no racemization in polymer synthesis even at 180 °C. Gel-sol experiments were studied after each component's length in MePEG-PDIPGand PDIPG-PEG-PDIPG was adjusted with care during the synthesis. The polymer showed a sol property at 42-45 °C, which is suitable for the injection and a gel property at body temperature. After loading paclitaxel into gels effectively, the anticancer drug showed prolonged release (60 days). SEM analysis confirmed that when release time proceeded, gels turned into more porous structure due to drug release.

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“…1,12,13,[29][30][31][32][33] Herein we aim to focus on some current trends in the field, namely the synthesis of functional poly(ester)s from renewable resources, the application of click chemistries and the synthesis of functional nanoparticles comprised of only poly(ester)s produced by ROP.…”

Section: Introductionmentioning

confidence: 99%

Towards poly(ester) nanoparticles: recent advances in the synthesis of functional poly(ester)s by ring-opening polymerization

2010

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The recent trends in the synthesis of functional poly(ester)s by ring-opening polymerization (ROP) are reviewed. While the use of ROP processes for the synthesis of poly(lactide), poly(lactide-co-glycolide) and several poly(lactone)s has been well studied, the paucity of functional groups available for further reaction limits their application. Recent efforts to expand this available functionality are reviewed focusing on the application of renewable resources in the synthesis of new monomers and the utilization of click chemistry to provide common intermediate polymers in the manipulation of poly(ester) functionality. In turn these advances are leading to a new generation of precisely controlled nanoparticles comprised entirely of poly(ester)s.

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Glass Transitions in Polylactides

Cited by 105 publications

References 95 publications

Acyclic Triene Metathesis Polymerization of Plukenetia Conophora Oil: Branched Polymers by Direct Polymerization of Renewable Resources

Acyclic Triene Metathesis Polymerization of Plukenetia Conophora Oil: Branched Polymers by Direct Polymerization of Renewable Resources

Synthesis and properties of novel diisopropyl-functionalized polyglycolide–PEG copolymers

Towards poly(ester) nanoparticles: recent advances in the synthesis of functional poly(ester)s by ring-opening polymerization

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