Rheological properties of ionically and covalently crosslinked polypropylene-type thermoplastic elastomers

2002 ◽  
Vol 85 (4) ◽  
pp. 762-773 ◽  
Author(s):  
Mitsuyoshi Fujiyama ◽  
Manabu Kondou ◽  
Kazuhiko Ayama ◽  
Hitoshi Inata
Keyword(s):  
Rheological Properties ◽  
Thermoplastic Elastomers

Thermoplastic elastomers by hydrogen bonding 1. Rheological properties of modified polybutadiene

1986 ◽  
Vol 264 (9) ◽  
pp. 773-778 ◽  
Author(s):  
R Stadler ◽  
L. de Lucca Freitas
Keyword(s):  
Hydrogen Bonding ◽  
Rheological Properties ◽  
Thermoplastic Elastomers

Rheological Properties of Thermoplastic Elastomers by Hydrogen Bonding

1988 ◽  
pp. 472-476 ◽  
Author(s):  
Reimund Stadler ◽  
Liane Lucca de Freitas ◽  
Josef Burgert
Keyword(s):  
Hydrogen Bonding ◽  
Rheological Properties ◽  
Thermoplastic Elastomers

Novel Thermoplastic Elastomers: Star-Blocks Consisting of Eight Poly(Styrene-b-Isobutylene) Arms Radiating from a Calix[8]Arene Core

1998 ◽  
Vol 71 (4) ◽  
pp. 708-721 ◽  
Author(s):  
Sunny Jacob ◽  
Istvan Majoros ◽  
Joseph P. Kennedy
Keyword(s):  
Nmr Spectroscopy ◽  
Block Copolymers ◽  
Rheological Properties ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
High Strength ◽  
Living Polymerization ◽  
Thermoplastic Elastomers ◽  
Molecular Weights ◽  
Star Block Copolymers

Abstract The first synthesis by a core-first strategy of novel star-block copolymers consisting of eight poly(styrene-b-isobutylene) (PSt-b-PIB) arms radiating from a calix[8]arene core is described. An octafunctional methoxy calix[8]arene derivative was used to initiate the living polymerization of isobutylene (IB) to desirable molecular weights, then styrene (St) was added to obtain the sought star-blocks. Molecular weights and PSt contents were determined by triple-detector GPC and 1H NMR spectroscopy. Star-block thermoplastic elastomers containing 17–32% PSt showed high strength and elongation (up to ∼26 MPa and >500%) and relatively low melt viscosities. The mechanical and rheological properties of these star-blocks are superior to those of linear PSt-b-PIB-b-PSt triblocks. PIB-based thermoplastic elastomers may be of use as novel biomaterials.

Rheological properties of ionically crosslinked poly(propylene)-type thermoplastic elastomers

2002 ◽  
Vol 86 (11) ◽  
pp. 2887-2897 ◽  
Author(s):  
Mitsuyoshi Fujiyama ◽  
Kazuhiro Yamane ◽  
Kazuhiko Ayama ◽  
Hitoshi Inata
Keyword(s):  
Rheological Properties ◽  
Thermoplastic Elastomers ◽  
Poly Propylene

Thermoplastic elastomers by hydrogen bonding. 3. Interrelations between molecular parameters and rheological properties

1987 ◽  
Vol 20 (10) ◽  
pp. 2478-2485 ◽  
Author(s):  
Liane Lucy De Lucca Freitas ◽  
Reimund Stadler
Keyword(s):  
Hydrogen Bonding ◽  
Rheological Properties ◽  
Thermoplastic Elastomers ◽  
Molecular Parameters
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