Novel nanostructured semicrystalline ionomers by chemoselective sulfonation of multiblock copolymers of syndiotactic polystyrene with polybutadiene

RSC Advances ◽  
2014 ◽  
Vol 4 (104) ◽  
pp. 60158-60167 ◽  
Author(s):  
Antonio Buonerba ◽  
Vito Speranza ◽  
Partizia Canton ◽  
Carmine Capacchione ◽  
Stefano Milione ◽  
...  
Keyword(s):  
Syndiotactic Polystyrene ◽  
Multiblock Copolymers

Molecular Aggregation States and Physical Properties of Syndiotactic Polystyrene/Hydrogenated Polyisoprene Multiblock Copolymers with Crystalline Hard Domain

2017 ◽  
Vol 50 (16) ◽  
pp. 6184-6191 ◽  
Author(s):  
Yuji Higaki ◽  
Ken Suzuki ◽  
Yudai Kiyoshima ◽  
Tomoyuki Toda ◽  
Masayoshi Nishiura ◽  
...  
Keyword(s):  
Physical Properties ◽  
Syndiotactic Polystyrene ◽  
Molecular Aggregation ◽  
Multiblock Copolymers ◽  
Hard Domain

Morphological studies of linear (AB)n multiblock copolymers and their blends

1992 ◽  
Vol 50 (1) ◽  
pp. 384-385
Author(s):  
Richard J. Spontak ◽  
Steven D. Smith ◽  
Arman Ashraf
Keyword(s):  
Electron Microscopy ◽  
Microphase Separation ◽  
Multiblock Copolymers ◽  
First Order ◽  
Morphological Studies ◽  
Transmission Electron ◽  
First Order Phase Transition ◽  
Covalently Bonded ◽  
Total Molecular Weight ◽  
First Order Phase

Block copolymers are composed of sequences of dissimilar chemical moieties covalently bonded together. If the block lengths of each component are sufficiently long and the blocks are thermodynamically incompatible, these materials are capable of undergoing microphase separation, a weak first-order phase transition which results in the formation of an ordered microstructural network. Most efforts designed to elucidate the phase and configurational behavior in these copolymers have focused on the simple AB and ABA designs. Few studies have thus far targeted the perfectly-alternating multiblock (AB)n architecture. In this work, two series of neat (AB)n copolymers have been synthesized from styrene and isoprene monomers at a composition of 50 wt% polystyrene (PS). In Set I, the total molecular weight is held constant while the number of AB block pairs (n) is increased from one to four (which results in shorter blocks). Set II consists of materials in which the block lengths are held constant and n is varied again from one to four (which results in longer chains). Transmission electron microscopy (TEM) has been employed here to investigate the morphologies and phase behavior of these materials and their blends.

Super2- Structures in Polydisperse Multiblock-Copolymers

1997 ◽  
Vol 7 (10) ◽  
pp. 1489-1497 ◽  
Author(s):  
A. N. Semenov
Keyword(s):  
Multiblock Copolymers

Toward Olefin Multiblock Copolymers with Tailored Properties: A Molecular Perspective

2021 ◽  
pp. 2100003
Author(s):  
Yousef Mohammadi ◽  
Mohammad Reza Saeb ◽  
Alexander Penlidis ◽  
Esmaiel Jabbari ◽  
Florian J. Stadler ◽  
...  
Keyword(s):  
Multiblock Copolymers

Anisotropic Guest Diffusion in the δ Crystalline Host Phase of Syndiotactic Polystyrene:  Transport Kinetics in Films with Three Different Uniplanar Orientations of the Host Phase

2006 ◽  
Vol 18 (9) ◽  
pp. 2205-2210 ◽  
Author(s):  
Vincenzo Venditto ◽  
Anna De Girolamo Del Mauro ◽  
Giuseppe Mensitieri ◽  
Giuseppe Milano ◽  
Pellegrino Musto ◽  
...  
Keyword(s):  
Transport Kinetics ◽  
Syndiotactic Polystyrene

Multiblock Copolymers by Thiol Addition Across Norbornene

2014 ◽  
Vol 3 (5) ◽  
pp. 453-457 ◽  
Author(s):  
Catherine N. Walker ◽  
Joel M. Sarapas ◽  
Vanessa Kung ◽  
Ashley L. Hall ◽  
Gregory N. Tew
Keyword(s):  
Multiblock Copolymers

Simulation of phase separation in melts of reacting multiblock copolymers

2011 ◽  
Vol 53 (12) ◽  
pp. 1207-1216 ◽  
Author(s):  
A. A. Gavrilov ◽  
D. V. Guseva ◽  
Ya. V. Kudryavtsev ◽  
P. G. Khalatur ◽  
A. V. Chertovich
Keyword(s):  
Phase Separation ◽  
Multiblock Copolymers
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