NDLI: Shape-memory capability of binary multiblock copolymer blends with hard and switching domains provided by different components

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Contents

Inside front cover

Non-covalently connected micelles (NCCMs): the origins and development of a new concept

The science of food structuring

Stimuli-responsive hydrogel thin films

Shear controlled crystal size definition in a low molar mass compound using a polymeric solvent

pH-dependent permeability change and reversible structural transition of PEGylated polyion complex vesicles (PICsomes) in aqueous media

Control of the entropic interactions and phase behavior of athermal nanoparticle/homopolymer thin film mixtures

Emulsification alters simulated gastrointestinal proteolysis of β-casein and β-lactoglobulin

Morphology of ionic microemulsions: comparison of SANS studies and the net-average curvature (NAC) model

Competition between crystallization and dewetting fronts in thin polymer films

Changes in molecular composition and packing during lipid membrane reconstitution from phospholipid–surfactant micelles

Generation and manipulation of “smart” droplets

Covalent and orthogonal multi-functionalization of terpolymers

Design of crosslinked hybrid multilayer thin films from azido-functionalized polystyrenes and platinum nanoparticles

Electrospray deposition producing ultra-thin polymer films with a regular surface structure

Endowing catanionic surfactant vesicles with dual responsive abilities via a noncovalent strategy: introduction of a responser, sodium cholate

Gold nanoparticle-PPE constructs as biomolecular material mimics: understanding the electrostatic and hydrophobic interactions

Selective protein and DNA adsorption on PLL-PEG films modulated by ionic strength

Disordered nanoparticle interfaces for directed self-assembly

Analytical theory and Monte Carlo simulations of gel formation of charged chains

Adsorption and self-assembly of linear polymers on surfaces: a computer simulation study

Point defects in two-dimensional colloidal crystals: simulation vs. elasticity theory

Effect of functionalization on the self-assembling propensity of β-sheet forming peptides

Phospholipid crystalline clusters induced by adsorption of novel amphiphilic triblock copolymers to monolayers

Shape-memory capability of binary multiblock copolymer blends with hard and switching domains provided by different components

Differential electronic states observed during A–B DNA duplex conformational transitions

Shape-memory capability of binary multiblock copolymer blends with hard and switching domains provided by different components

Content Provider	Royal Society of Chemistry (RSC)
Author	Kelch, Steffen Ridder, Ute Behl, Marc Feng, Yakai Lendlein, Andreas
Copyright Year	2009
Abstract	The structural concept of shape-memory polymers (SMP) is based on two key components: covalent or physical crosslinks (hard domains) determining the permanent shape and switching domains fixing the temporary shape as well as determining the switching temperature Tsw. In conventional thermoplastic SMP hard and switching domains determining segments are combined in one macromolecule. In this paper we report on binary polymer blends from two different multiblock copolymers, whereby the first one provides the segments forming hard domains and the second one the segments forming the switching domains. A poly(alkylene adipate) mediator segment is incorporated in both multiblock copolymers to promote their miscibility as the hard segment poly(p-dioxanone) (PPDO) and the switching segment poly(ε-caprolactone) (PCL) are non-miscible. All polymer blends investigated showed excellent shape-memory properties. The melting point associated to the PCL switching domains Tm,PCL is almost independent of the weight ratio of the two blend components. At the same time the mechanical properties can be varied systematically. In this way complex synthesis of new materials can be avoided. Its biodegradability, the variability of mechanical properties and a Tsw around body temperature are making this binary blend system an economically efficient, suitable candidate for diverse biomedical applications.
Starting Page	676
Ending Page	684
Page Count	9
File Format	HTM / HTML PDF
ISSN	1744683X
Volume Number	5
Issue Number	3
Journal	Soft Matter
DOI	10.1039/b810583a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Caprolactone P-Dioxanone Macromolecule PCL Covalent bond Polymer Thermoplastic Shape-memory polymer
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics

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Shape-memory capability of binary multiblock copolymer blends with hard and switching domains provided by different components

Novel triple-shape PCU/PPDO interpenetrating polymer networks constructed by self-complementary quadruple hydrogen bonding and covalent bonding

Two component gels of immiscible blends of biscarbamates (polyurethane model compounds) and poly(ε-caprolactone)

Shape memory properties of poly(ε-caprolactone) based thermoplastic polyurethane secondary blends (2008).

Dual-responsive hybrid thermoplastic shape memory polyurethane

Influence of deformation temperature on structural variation and shape-memory effect of a thermoplastic semi-crystalline multiblock copolymer

Novel two-way multiple shape memory effects of olefin block copolymer (OBC)/polycaprolactone (PCL) blends

Shape Memory Properties of Poly(ε-Caprolactone) Based Thermoplastic Polyurethane Secondary Blends

Shape memory thermoplastic elastomer from maleated polyolefin elastomer and nylon 12 blends

Shape-memory capability of binary multiblock copolymer blends with hard and switching domains provided by different components

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