Consequences of Polylactide Stereochemistry on the Properties of Polylactide-Polymenthide-Polylactide Thermoplastic Elastomers

Wanamaker, Carolyn L.; Bluemle, Michael J.; Pitet, Louis M.; O’Leary, Leslie E.; Tolman, William B.; Hillmyer, Marc A.

doi:10.1021/bm900721p

Cited by 105 publications

(139 citation statements)

References 55 publications

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“…32,60,61 However in our case, the rigid cellulose backbone is less than 1 wt% of the entire gra copolymer. The so PBA or PLMA segment is a majority component with another rigid PDAEMA as a minority component.…”

mentioning

confidence: 65%

Sustainable thermoplastic elastomers derived from renewable cellulose, rosin and fatty acids

et al. 2014

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Two series of graft copolymers, cellulose-g-poly(n-butyl acrylate-co-dehydroabietic ethyl methacrylate) (Cell-g-P(BA-co-DAEMA))and cellulose-g-poly(lauryl methacrylate-co-dehydroabietic ethyl methacrylate) (Cell-g-P(LMA-co-DAEMA)), were prepared by "grafting from" atom transfer radical polymerization (ATRP). In these novel graft copolymers, cellulose, DAEMA (derived from rosin), and LMA (derived from fatty acids) are all sourced from renewable natural resources. The "grafting from" ATRP strategy allows the preparation of high molecular weight graft copolymers consisting of a cellulose main chain with acrylate copolymer side chains. By manipulating the monomer ratios in the P(BA-co-DAEMA)and P(LMA-co-DAEMA) side chains, graft copolymers with varying glass transition temperatures (À50-60 C) were obtained. Tensile stress-strain and creep compliance testing were employed to characterize mechanical properties. These novel graft copolymers did not exhibit linear elastic properties above about 1% strain, but they did manifest remarkable elasticity at strains of 500% or more. These results suggest that these cellulose-based, acrylate side-chain polymers are potential candidates for service as thermoplastic elastomers materials in applications requiring high elasticity without rupture at high strains.

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confidence: 65%

Sustainable thermoplastic elastomers derived from renewable cellulose, rosin and fatty acids

et al. 2014

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“…This difunctional PM was used as the initiator for ROTEP of (±)-lactide to yield PLA-PM-PLA triblock copolymers used as TPEs (Figure 3). Sample PLLA-PM-PLLA (13-33-13) displayed a strain at break of 765% with ultimate tensile strength of 19.5 MPa [51,52]. With 30 vol% of poly(6-methyl-ε-caprolactone) (PMCL) as the elastic block, 1880% strain at break was achieved with 10.2 MPa ultimate stress [53].…”

Section: Block Copolymers Synthesized By Ring-opening Transesteriicatmentioning

confidence: 99%

Thermoplastic Elastomers Based on Block, Graft, and Star Copolymers

Wang¹,

Lu²,

Kang³

et al. 2017

Elastomers

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In this book chapter, we focus on recent advances in thermoplastic elastomers based on synthetic polymers from the aspects of polymer architectures such as linear block, graft, and star copolymers. The irst section is an introduction that covers a brief history and classiication of thermoplastic elastomers (TPEs). The second section summarizes ABA triblock copolymers synthesized by various methods for TPE applications. The third section reviews TPEs based on graft copolymers, and the fourth section reviews TPEs based on star copolymers. The diferences between TPE research in academia and industry are addressed in the last section as a perspective, with a view toward the generation of new, advanced, commercially viable TPEs.

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“…Renewable ABA triblock copolymers of (À)-menthide (B) and lactide (A) have been prepared by sequential ROPs aiming at the production of thermoplastic elastomers and pressure-sensitive adhesives [97][98][99]. Carvone is a monocyclic monoterpene vinyl ketone undergoing dimerization, but no polymerization, upon treatment with sodium amide.…”

Section: Menthonementioning

confidence: 99%

Synthesis of Terpene-Based Polymers

Zhao¹,

Schlaad²

2012

Advances in Polymer Science

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Terpenes or terpenoids are a large class of diverse biological compounds derived from isoprene. Due to their abundance in nature and desirable properties, there has been great interest in producing polymers with terpenes as either functional entities or as the main constituent. Terpene-based polymers have found applications as biomedical or liquid crystalline materials and, more importantly, have greatly contributed to the concept of sustainable polymer chemistry. The design and preparation of terpene-based polymers have involved different chemical strategies and a wide variety of polymerization techniques, making use of the chemical functionalities in terpene molecules, e.g. (conjugated) double bonds, hydroxyl and carboxyl groups. This review describes the synthetic methodologies for terpene-based polymers, classified by the position of terpene entities in the polymer chains, i.e., main chain, terminal or central group, and pendant group.

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Consequences of Polylactide Stereochemistry on the Properties of Polylactide-Polymenthide-Polylactide Thermoplastic Elastomers

Cited by 105 publications

References 55 publications

Sustainable thermoplastic elastomers derived from renewable cellulose, rosin and fatty acids

Sustainable thermoplastic elastomers derived from renewable cellulose, rosin and fatty acids

Thermoplastic Elastomers Based on Block, Graft, and Star Copolymers

Synthesis of Terpene-Based Polymers

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