Synthesis and properties of Poly(L-lactide)-Poly(ɛ ... - Nature
WEBJul 8, 2015 · We synthesized three types of MBCs with degrees of polymerization of the lactide–caprolactone segments of 12–15 (MBC1), 24–26 (MBC2) and 49–50 (MBC3) to investigate the effect of the segment...
Regulation of Hard Segment Cluster Structures for …
WEBApr 11, 2024 · Herein, we select biosafe and degradable polycaprolactone (PCL) as the soft segment, ensuring the degradability of the elastomers. Moreover, PCL is easy to have stress-induced crystallization (SIC) to resist external force damage.
Pendant Amines in the Hard or Soft Segments of PCL …
WEBApr 18, 2024 · The results from differential scanning calorimetry, dynamic mechanical analysis, X-ray scattering, and infrared spectroscopy demonstrated that the location of the functional group significantly affects polyurethane microphase separation, morphology, and interactions between soft and hard segments.
Synthesis and properties of poly(L-lactide-co-glycolide)-b-Poly(ɛ ...
WEBJan 25, 2017 · The effects of the introduction of glycolide segments on the properties of the poly (L-lactide-co-glycolide)-b-poly (ɛ-caprolactone) multiblock copolymers (PLGA-PCL MBCs) were investigated.
Tailor‐Made Functional Polymethacrylates with Dual …
WEBMay 20, 2020 · The soft PCL segments support the polymer in adapting a new temporary shape after deformation at higher temperatures and subsequent cooling, whereas the chemically DA cross-linked hard PFMA domains force …
The Influence of Soft Segment Structure on the Properties of
WEBSep 14, 2023 · Poly(D,L-lactide) (PDLLA) and polycaprolactone diol (PCL) were synthesised as a polyester type polyols to obtain soft segments. The process of varying the molar ratio of newly synthesised PDLLA in soft segments has been confirmed as a powerful tool for fine-tuning the final properties of PU.
Poly(ε-caprolactone) networks with tunable thermoresponsive …
WEBOct 4, 2017 · The most widely used approach to introduce a shape memory effect in PCL is to synthesize polyurethanes from PCL diols/triols as the soft segment and diisocyanates in combination with low molecular weight diols as the hard segment [20, …
The influence of hard‐segments on two‐phase structure and …
WEBJan 23, 2007 · Poly (ε-caprolactone)-based segmented polyurethanes (PCLUs) were prepared from poly (ε-caprolactone) diol, diisocyanates (DI), and 1,4-butanediol. The DIs used were 4,4′-diphenylmethane diisocyanate (MDI), 2,4-toluenediisocyanate (TDI), isophorone diisocyanate (IPDI), and hexamethylene diisocyanate (HDI).
PCL-based Shape Memory Polymers with Variable PDMS Soft …
WEBFeb 1, 2011 · In this present work, we prepared inorganic-organic SMPs comprised of inorganic polydimethyl-siloxane (PDMS) segments of varying lengths and organic poly(ε-caprolactone) (PCL) segments. PDMS has a particularly low T g (−125 °C) which makes it a particularly effective soft segment to tailor the mechanical properties of PCL-based SMPs.
WEBThe introduction of glycolide segments hampered the formation of poly(L-lactide) (PLLA) crystals in PLGA-PCL MBCs, which was con rmed by wide-angle X-ray diffraction (WAXD) measurements....
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