Polymorphism of syndiotactic polystyrene. Morphology of the solvent-induced crystalline forms

1996 ◽  
Vol 35 (2) ◽  
pp. 265-275 ◽  
Author(s):  
F. De Candia ◽  
M. Carotenuto ◽  
L. Guadagno ◽  
V. Vittoria
Keyword(s):  
Syndiotactic Polystyrene ◽  
Crystalline Forms

Crystalline forms in melt-crystallized syndiotactic polystyrene/clay nanocomposites

2002 ◽  
Vol 42 (12) ◽  
pp. 2295-2305 ◽  
Author(s):  
Tzong-Ming Wu ◽  
Sung-Fu Hsu ◽  
Jeng-Yue Wu
Keyword(s):  
Syndiotactic Polystyrene ◽  
Clay Nanocomposites ◽  
Crystalline Forms

Variable-Temperature Study of Syndiotactic Polystyrene

1989 ◽  
Vol 43 (3) ◽  
pp. 440-442 ◽  
Author(s):  
Richard A. Nyquist
Keyword(s):  
Ambient Temperature ◽  
Variable Temperature ◽  
Syndiotactic Polystyrene ◽  
Temperature Study ◽  
Crystalline Forms

IR data are presented which indicate that syndiotactic polystyrene exists in different crystalline forms at ambient temperature, depending upon its physical history.

Positron annihilation in syndiotactic polystyrene containing α and β crystalline forms

Polymer ◽  
2002 ◽  
Vol 43 (25) ◽  
pp. 6775-6784 ◽  
Author(s):  
B.G. Olson ◽  
T. Prodpran ◽  
A.M. Jamieson ◽  
S. Nazarenko
Keyword(s):  
Positron Annihilation ◽  
Syndiotactic Polystyrene ◽  
Crystalline Forms

Polymer Nanoporous and Co-crystalline Phases

2011 ◽  
Vol 1366 ◽  
Author(s):  
Gaetano Guerra ◽  
Christophe Daniel
Keyword(s):  
Final Part ◽  
Syndiotactic Polystyrene ◽  
Crystalline Phases ◽  
Guest Molecules ◽  
Crystalline Structures ◽  
Crystalline Forms

ABSTRACTThe first part of this presentation will be devoted to the description of the two nanoporous crystalline forms and of the various co-crystalline structures which can be obtained with syndiotactic polystyrene (s-PS). Then, the second part will deal with the co-crystals formed with active guest molecules (nonlinear active, fluorescent, photoreactive, chiral, ...) while the final part of the lecture will focus on the possible applications of materials characterized by nanoporous crystalline s-PS phases.

scholarly journals Monomeric and Dimeric Carboxylic Acid in Crystalline Cavities and Channels of Delta and Epsilon Forms of Syndiotactic Polystyrene

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3330
Author(s):  
Antonietta Cozzolino ◽  
Guglielmo Monaco ◽  
Christophe Daniel ◽  
Paola Rizzo ◽  
Gaetano Guerra
Keyword(s):  
Carboxylic Acid ◽  
Hexanoic Acid ◽  
Ftir Spectra ◽  
Syndiotactic Polystyrene ◽  
Guest Molecules ◽  
Characterization Study ◽  
Polarized Ftir ◽  
Crystalline Forms

Delta (δ) and epsilon (ε) co-crystalline forms of syndiotactic polystyrene with a carboxylic acid guest were obtained by sorption of liquid hexanoic acid in syndiotactic polystyrene films exhibiting delta and epsilon nanoporous-crystalline forms. The characterization study is facilitated by axially stretched syndiotactic polystyrene films, used both for polarized FTIR spectra and for WAXD fiber patterns. Particularly informative are two carbonyl-stretching FTIR peaks, attributed to monomeric and dimeric hexanoic acid. The dichroism of these carbonyl peaks indicates that both delta and epsilon phases are able to include hexanoic acid as isolated guest molecules, while only the epsilon phase is also able to include dimeric hexanoic acid molecules in its crystalline channels. The inclusion of both isolated and dimeric hexanoic acid species in the epsilon form crystalline channels produces extremely fast hexanoic acid uptakes by syndiotactic polystyrene epsilon form films.

scholarly journals Characterization of toluene and 2-methylnaphthalene transport separated by syndiotactic polystyrene having various crystalline forms

2013 ◽  
Vol 45 (11) ◽  
pp. 1135-1139 ◽  
Author(s):  
Koichiro Tanigami ◽  
Daisuke Ishii ◽  
Takahiko Nakaoki ◽  
Pieter Stroeve
Keyword(s):  
Syndiotactic Polystyrene ◽  
Crystalline Forms
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