Polylactide-based polyurethane and its shape-memory behavior

Wang, Wenshou; Peng, Ping; Chen, Xuesi; Jing, Xiabin

doi:10.1016/j.eurpolymj.2005.11.029

Cited by 207 publications

(111 citation statements)

References 30 publications

Supporting

Mentioning

109

Contrasting

Order By: Relevance

“…SMPs can be classified depending on their structures (thermosets vs. thermoplastics) and transformation temperatures (melting or glass transition temperatures) [2][3][4]. In the literature, SMPs based on common chemistries such as polyurethane (PU) [5][6][7][8][9][10][11][12][13][14][15][16][17][18], epoxy [19][20][21][22][23][24][25], polyolefin [26][27][28], as well as more exotic formulations such as partially dehydrochlorinated poly(vinyl chloride) [29], nylon/polyethylene graft copolymers [30], or poly (ether esters) [31][32][33] have been reported to show varying performances. This emphasizes the key role that polymer molecular design plays on tailoring the shape memory (SM) properties.…”

Section: Introductionmentioning

confidence: 99%

Challenges of shape memory polymers: A review of the progress toward overcoming SMP's limitations

Rousseau

2008

Polymer Engineering & Sci

394

350

View full text Add to dashboard Cite

Many applications ranging from biomedical to aerospace have been proposed for the use of shape memory polymers (SMPs). To optimize SMPs properties for appropriately targeting such wide-spreading application requirements, it becomes necessary to understand the structure/property relationships in SMPs. The literature was reviewed and the recent advances made in the development of SMPs were determined to establish guidelines for composition and structure considerations for designing SMPs with targeted chemical, physical, and shape memory (SM) properties. It was concluded that covalently crosslinked glassy thermosets appear to be better SMP candidates because of their intrinsically higher modulus, greater thermal and chemical stability, higher shape fixity and recovery, and possibly their longer cycle life. However, material design allows for reaching comparable or better properties for all classes of SMPs. This emphasizes that optimization of SMPs requires application-specific molecular, structural, and geometrical design. Current techniques for improving stress recovery and cycle time, which compared to shape memory alloys are the two main limitations of SMPs, are extensively discussed. Understanding the relationships between the composition and structure of an SMP and its SM properties as well as its limitations enables one to better define the development areas for high performance SMPs.

show abstract

Section: Introductionmentioning

confidence: 99%

Challenges of shape memory polymers: A review of the progress toward overcoming SMP's limitations

Rousseau

2008

Polymer Engineering & Sci

394

350

View full text Add to dashboard Cite

show abstract

“…These components reacted with HDI and butanediol (BDO) [17][18][19] to obtain a PLA-based thermoplastic elastomer (PLAE). The present study is an alternative approach to the previously reported works on the poly(lactic acid)-blockpolycarbonate diol- [20][21][22] and polylactide-block-poly(butylene adipate) diol- [23][24][25] based thermoplastic elastomers.…”

Section: -15mentioning

confidence: 99%

Enhanced mechanical properties of PLA/PLAE blends via well-dispersed and compatilized nanostructures in the matrix

Cai

Zeng

Zhang³

et al. 2016

RSC Adv.

View full text Add to dashboard Cite

Polylactide (PLA) was toughened by a PLA-based thermoplastic elastomer (PLAE). PLAE was prepared by chain extension of PLA copolymer derived from polylactic acid (PLA) and poly(tetramethylene ether glycol) (PTMEG) via melt polycondensation. The tensile strength of the toughened-PLA (PLAE30) reached 70 MPa, while the elongation at break was found to be above 140% compared to its plain PLA counterpart. The relationship between the phase morphology of the blends and their mechanical behavior was investigated with atomic force microscopy (AFM), scanning electron microscopy (SEM), and scanning transmission X-ray microscopy (STXM). It was found that the well-dispersed nanoscale structures in the matrix of PLA/PLAE blends are mainly responsible for the significantly enhanced mechanical properties. Also discussed are the detailed microstructural development in PLAE and the toughening mechanism.

show abstract

“…The list of polymers with SM properties is continuously growing; it includes physically [72][73][74][75][76][77][78] and chemically [79][80][81] cross-linked SMPUs, trans-polyisoprene-based SMPU [82,83], poly(ether ester)s like poly(ethylene oxide)/poly(ethylene terephthalate) copolymers [84][85][86], norbornyl/polyhedral oligomeric silsesquioxane (POSS) copolymers [87,88], poly(methylene-1,3-cyclopentane) and its copolymer with polyethylene [89], styrene/butadiene copolymers [90], thiol-ene/acrylate copolymers [91], polynorbornene [90], polymer networks prepared from poly(ε-caprolactone) (PCL) dimethacrylates [92,93], acrylate-based SMPs [94], (meth)acrylate networks [95,96], cross-linked polyethylene [97], epoxy-based polymers [98][99][100][101] and many others. Moreover, various polymer blends like SMPU/phenoxy resin [102], SMPU/polyvinylchloride (PVC) [103] and several others [104][105][106][107][108][109] have received attention.…”

Section: Examplesmentioning

confidence: 99%

“…Biodegradable SMPs with controllable degradation behavior provide interesting advantages over other implant materials, because much of today's follow-on surgery in removing the implants can thus be avoided. With this concept in mind, biodegradable SMPs based on poly(DL-lactide) and PCL [78,148,[244][245][246][247][248][249], blends based on poly(L-lactide-co-ε-caprolactone) and poly(L-lactide-co-glycolide) [250], SMPs based on bile acids [251,252] and many others [253][254][255][256][257] have been synthesized. Recent research trends regarding medical applications of SMPs have been summarized by Sokolowski et al [149], Mather et al [13], Small et al [258] and Lendlein et al [259].…”

Section: Smps Intended For Use In Medical Applicationsmentioning

confidence: 99%

Review on the Functional Determinants and Durability of Shape Memory Polymers

Pretsch

2010

Polymers

112

View full text Add to dashboard Cite

Shape memory polymers (SMP) belong to the class of stimuli-responsive materials and have generated significant research interest. Their capability to retain an imposed, temporary shape and to recover the initial, permanent shape upon exposure to an external stimulus depends on the "functional determinants", which in simplistic terms, can be divided into structural/morphological and processing/environmental factors. The primary aim of the first part of this review is to reflect the knowledge about these fundamental relationships. In a next step, recent advances in shape memory polymer composites are summarized. In contrast to earlier reviews, studies on the impairment of shape memory properties through various factors, such as aging, compression and hibernation, lubricants, UV light and thermo-mechanical cycling, are extensively reviewed. Apart from summarizing the state-of-the-art in SMP research, recent progress is commented.

show abstract

Polylactide-based polyurethane and its shape-memory behavior

Cited by 207 publications

References 30 publications

Challenges of shape memory polymers: A review of the progress toward overcoming SMP's limitations

Challenges of shape memory polymers: A review of the progress toward overcoming SMP's limitations

Enhanced mechanical properties of PLA/PLAE blends via well-dispersed and compatilized nanostructures in the matrix

Review on the Functional Determinants and Durability of Shape Memory Polymers

Contact Info

Product

Resources

About