Preparation, Structure, Properties, and Applications of Co‐Crystals and Nanoporous Crystalline Phases of Syndiotactic Polystyrene

Crystalline Complex of Syndiotactic Polystyrene with Poly(ethylene Glycol) Dimethyl Ethers

“…[1,2] Complexation of sPS in crystalline states has become of interest in recent years because of its diversity. Contrary to other polymers that form co-crystalline structures, sPS can accept a wide range of chemical compounds with different size, shape and property in its crystalline states.…”

“…From a structure-chemical point of view, syndiotactic polystyrene (sPS) occupies a peculiar position among polymeric materials; sPS forms molecular complexes with low mass molecules in gel and crystalline states. [1,2] Complexation of sPS in crystalline states has become of interest in recent years because of its diversity. Contrary to other polymers that form co-crystalline structures, sPS can accept a wide range of chemical compounds with different size, shape and property in its crystalline states.…”

“…From a structure‐chemical point of view, syndiotactic polystyrene (sPS) occupies a peculiar position among polymeric materials; sPS forms molecular complexes with low mass molecules in gel and crystalline states 1, 2. Complexation of sPS in crystalline states has become of interest in recent years because of its diversity.…”

Nanoporous Crystalline Phases of Poly(2,6-Dimethyl-1,4-phenylene)oxide

“…Recently nanoporous crystalline polymeric materials have been also obtained, for a stereoregular polymer (syndiotactic polystyrene, s-PS) . In particular, this commercially available thermoplastic material is able to form co-crystalline phases with several low-molecular-mass guest molecules and, by suitable guest extraction procedures, two nanoporous crystalline forms δ (monoclinic, with empty space organized as cavities) and ε (orthorhombic, with empty space organized as channels) can be obtained. Both crystalline frameworks rapidly absorb volatile organic molecules, even if present in traces in air or water and hence are promising for applications in chemical separations and molecular sensorics and are able to form co-crystalline phases even with very small gas-molecules …”

Discovery of Syndiotactic Polystyrene: Its Synthesis and Impact

“…In the second case, the guest molecules line up parallel to the plane of the helical axis (ε cocrystals). The latter structures have been observed not only for certain small molecule guests but also for molecules too large to be accommodated within the δ phase , (Figure ).…”