Page 369 - Biodegradable Polyesters

Index 347
semi interpenetrating network 146, 147 t
semi-interpenetrating PU-PLA network tensile testing 244
262 TERM field 215
semi IPN structured EP/PCL 147 terylene, see polyethylene terephthalate (PET)
shape fixity ratio (R f ) 132, 134 textile technologies 218
shape memory polymers (SMPs) thermally induced phase separation 218
– applications 131, 148, 149 thermoresponsive biodegradable polymers
– benefits 149 35, 37
– cross-linked copolymers 140, 142 thermoresponsive SMPs 139
– disadvantages 149 thermoreversible crosslinked SMPs 137, 138
– homopolymers 134 thermosetting SMPs
– linear copolymers 138, 139 – conetworks 145, 146
– peroxide crosslinked PCL 135, 137 – IPNs 148
– peroxide crosslinked poly(propylene – semi IPNs 146, 147
sebacate) 137 tissue engineering scaffolds
– photo crosslinked PCL 135, 140 – basic requirements 218
– photosets PCL 135 – biodegradability 217
– PLA 134 – formation techniques 218, 219
– PLA/PCL blends 144 – MFC, see microfibrils reinforced composites
– PLA/PEG crosslinked blends 145 (MFC)
– PLA/thermoplastic PU blends 144 – purposes 216
– plasticized PLA 134 – working principle 216, 217
– polyurethane (PU) systems 142, 143 tissue substitutes, need for 215, 216
– PU/PCL blend 145 triple-shape memory polymers 140
– radiation crosslinked PCL 135 two-step SM programming methods 141
– self healing 149 two-way SMPs 132, 136, 137
– slow crystallizing polymers 134
– sol-gel crosslinked PCL 135, 136 u
– stents 148, 149 Uniquely-encapsulated drug/biopolymer
– sutures 148 nanofiber systems
– thermoreversible crosslinks 137, 138 – coaxial electrospinning, see coaxial
–thermosets, see thermosetting SMPs electrospun drug/biopolymer nanofibers
shape recovery ratio (R r ) 132, 134 – electrospraying, see electrosprayed
shear bands morphology 246 electrospun drug/biopolymer nanofibers
Shell method 76 – emulsion electrospinning, see emulsion
single-step SM programming procedure 141 electrospun drug/biopolymer nanofibers
sisal fibers/PLA composites 328 unsaturated polyesters (USPs) 30
SMPs, see shape memory polymers (SMPs) UV-ozone (UV/O ) surface treatment
3
solvent casting 218, 325 – cross-linked collagen scaffolds 166
spirulina 173 – vs. plasma methods 165, 166
Staudinger’s macromolecular concept 1, 3
stenting 299 v
surface functionalization vetirer grass fibers/PLA 329
– bioactive molecules 170, 172 video-controlled mechanical testing 244
– plasma treatment 162–165
– UV radiation 167, 169, 170 w
–UV-ozone (UV/O ) treatment 165–167 wet chemical surface modification 160, 162
3
– wet chemical methods 160, 162
surface-initiated atom transfer radical
polymerization (SI-ATRP) method 169