@article{uyar_rusa_tonelli_hacaloglu_2007, title={Pyrolysis mass spectrometry analysis of polycarbonate/poly(methyl methacrylate)/poly(vinyl acetate) ternary blends}, volume={92}, ISSN={["1873-2321"]}, DOI={10.1016/j.polymdegradstab.2006.10.002}, abstractNote={Direct insertion probe pyrolysis mass spectrometry (DIP-MS) analyses of polycarbonate/poly(methyl methacrylate)/poly(vinyl acetate), (PC/PMMA/PVAc), ternary blends have been performed. The PC/PMMA/PVAc ternary blends were obtained by coalescing from their common γ-cyclodextrin–inclusion compounds (CD–ICs), through the removal of the γ-CD host (coalesced blend), and by a co-precipitation method (physical blend). The coalesced ternary blend showed different thermal behaviors compared to the co-precipitated physical blend. The stability of PC chains decreased due to the reactions of CH3COOH formed by deacetylation of PVAc above 300 °C, for both coalesced and physical blends. This process was more effective for the physical blend most likely due to the enhanced diffusion of CH3COOH into the amorphous PC domains, where it can further react producing low molecular weight PC fragments bearing methyl carbonate chain ends. The decrease in thermal stability of PC chains was less significant for the coalesced ternary blend indicating that the diffusion of CH3COOH was either somewhat limited or competed with intermolecular reactions between PMMA and PC and between PMMA and PVAc, which were detected and were associated with their close proximity in the intimately mixed coalesced PC/PMMA/PVAc ternary blend.}, number={1}, journal={POLYMER DEGRADATION AND STABILITY}, author={Uyar, Tamer and Rusa, Cristian C. and Tonelli, Alan E. and Hacaloglu, Jale}, year={2007}, month={Jan}, pages={32–43} }
 @article{uyar_hunt_gracz_tonelli_2006, title={Crystalline cyclodextrin inclusion compounds formed with aromatic guests: Guest-dependent stoichiometries and hydration-sensitive crystal structures}, volume={6}, ISSN={["1528-7505"]}, DOI={10.1021/cg050500+}, abstractNote={A series of solid inclusion complexes (ICs) containing the aromatic guests aniline, benzene, ethylbenzene, phenol, p-xylene, styrene, and toluene were formed with host γ-cyclodextrin (γ-CD). IC stoichiometry was observed to depend on the nature of the included aromatic guest. The molar ratio of styrene, aniline, and phenol guests to γ-CD host was ∼2:1 in their individual IC crystals, whereas ethylbenzene, p-xylene, and toluene guests formed ∼1:1 inclusion complexes with γ-CD. Thermogravimetric analysis showed that the thermal stabilities of these volatile aromatic guest molecules increased due to guest−host interactions once they were included in their γ-CD-ICs. X-ray diffraction (WAXD) observations performed on the aromatic guest−CD-IC crystals showed that all of them have channel-type crystalline structures. Moreover, it was observed that the presence of guest molecules inside the γ-CD cavities stabilized the channel structure of stacked γ-CDs. However, a solid-phase transition from tetragonal to hexago...}, number={5}, journal={CRYSTAL GROWTH & DESIGN}, author={Uyar, T and Hunt, MA and Gracz, HS and Tonelli, AE}, year={2006}, month={May}, pages={1113–1119} }
 @article{uyar_gracz_rusa_shin_el-shafei_tonelli_2006, title={Polymerization of styrene in gamma-cyclodextrin channels: Lightly rotaxanated polystyrenes with altered stereosequences}, volume={47}, ISSN={["0032-3861"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-33748531256&partnerID=MN8TOARS}, DOI={10.1016/j.polymer.2006.07.054}, abstractNote={Modeling of polystyrene (PS) with various stereosequences in γ-cyclodextrin (γ-CD) channels has been conducted and it was found that only isotactic PS stereoisomers can fit into the γ-CD cavity. Thus, based on the modeling of stereoisomeric polystyrenes in narrow γ-CD channels, it was suggested that PSs with unusual microstructures might be produced via constrained polymerization of styrene monomer in its γ-CD-IC crystals. The in situ polymerization of styrene inside the narrow channels of its γ-CD-IC crystals suspended in aqueous media was performed. Alternatively, the solid-state polymerization of styrene/γ-CD-IC has also been conducted by exposure to γ-radiation. It was found that most host γ-CD molecules slip off during polymerization and the channel structure was not preserved. Consequently, much of the guest styrene monomer polymerizes outside of the host γ-CD channels, where the constrained environment is absent. Yet, a lightly rotaxanated structure has been obtained, where some threaded γ-CD molecules ∼15 wt% (∼1 γ-CD per 70 PS repeat units) are permanently entrapped along the PS chains after polymerization. 13C NMR spectra of PSs synthesized from styrene/γ-CD-IC and homogeneously in toluene show some differences, which are presumably due to variations in the stereosequences of PSs obtained from the partially constrained polymerization of styrene/γ-CD-IC.}, number={20}, journal={POLYMER}, author={Uyar, Tamer and Gracz, Hanna S. and Rusa, Mariana and Shin, I. Daniel and El-Shafei, Ahmed and Tonelli, Alan E.}, year={2006}, month={Sep}, pages={6948–6955} }
 @article{uyar_aslan_tonelli_hacaloglu_2006, title={Pyrolysis mass spectrometry analysis of poly(vinyl acetate), poly(methyl methacrylate) and their blend coalesced from inclusion compounds formed with gamma-cyclodextrin}, volume={91}, ISSN={["1873-2321"]}, DOI={10.1016/j.polymdegradstab.2005.05.002}, abstractNote={Abstract Direct insertion probe pyrolysis mass spectrometry (DIP-MS) analyses of poly(methyl methacrylate) (PMMA), poly(vinyl acetate) (PVAc) and binary PMMA/PVAc guests, coalesced from their inclusion compounds (ICs) formed with host γ-cyclodextrin (γ-CD) through removal of the γ-CD host, have been performed. A slight increase in the thermal stabilities of the coalesced polymers were recorded both by TGA and DIP-MS compared to the corresponding as-received polymers. The DIP-MS observations pointed out that the thermal stability and degradation products of these polymers are affected once they are included inside the IC channels created by the stacked host γ-CDs. DIP-MS observations suggested that the degradation mechanisms for PMMA and PVAc chains in their coalesced blend were significantly altered from those observed in their as-received and solution blended samples. This was attributed to the presence of specific molecular interactions between the intimately mixed PMMA and PVAc chains in their coalesced blend.}, number={1}, journal={POLYMER DEGRADATION AND STABILITY}, author={Uyar, T and Aslan, E and Tonelli, AE and Hacaloglu, J}, year={2006}, month={Jan}, pages={1–11} }
 @article{rusa_rusa_peet_uyar_fox_hunt_wang_balik_tonelli_2006, title={The nano-threading of polymers}, volume={55}, ISSN={["1573-1111"]}, DOI={10.1007/s10847-005-9038-1}, number={1-2}, journal={JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY}, author={Rusa, C. C. and Rusa, M. and Peet, J. and Uyar, T. and Fox, J. and Hunt, M. A. and Wang, X. and Balik, C. M. and Tonelli, A. E.}, year={2006}, month={Jun}, pages={185–192} }
 @article{tonelli_uyar_el-shafei_hacaloglu_2006, title={The solid channel structure inclusion complex formed between styrene guests and gamma-cyclodextrin hosts}, volume={55}, number={109}, journal={Journal of Inclusion Phenomena and Macrocyclic Chemistry}, author={Tonelli, A. E. and Uyar, T. and El-Shafei, A. and Hacaloglu, J.}, year={2006} }
 @article{uyar_tonelli_hacaloglu_2006, title={Thermal degradation of polycarbonate, poly(vinyl acetate) and their blends}, volume={91}, ISSN={["1873-2321"]}, DOI={10.1016/j.polymdegradstab.2006.08.028}, abstractNote={We have recently developed a novel approach for intimately mixing thermodynamically incompatible polymers, which utilizes the formation of inclusion compounds (ICs) formed with host cyclodextrins (CDs), followed by removal of CD and coalescence of the common guest polymers into a blend. In this paper direct insertion probe pyrolysis mass spectrometry (DIP-MS) analyses of polycarbonate (PC), poly(vinyl acetate) (PVAc) and PC/PVAc blends, obtained by coalescence from their inclusion compounds formed with host γ-CD (coalesced blend) and by co-precipitation (physical blend), have been performed. Variations in the thermal stabilities of the coalesced polymers were recorded both by TGA and DIP-MS and compared to the corresponding as-received polymers. It has been determined that for both coalesced and physical blends of PC/PVAc, CH3COOH formed by deacetylation of PVAc above 300 °C, reacts with PC chains decreasing their thermal stability. This process was more effective for the physical blend, most likely due to enhanced diffusion of CH3COOH, produced by deacetylation of PVAc, into the PC domains, where it can further react producing low molecular weight PC fragments bearing methyl carbonate chain ends.}, number={12}, journal={POLYMER DEGRADATION AND STABILITY}, author={Uyar, Tamer and Tonelli, Alan E. and Hacaloglu, Jale}, year={2006}, month={Dec}, pages={2960–2967} }
 @article{uyar_oguz_tonelli_hacaloglu_2006, title={Thermal degradation processes of poly(carbonate) and poly(methyl methacrylate) in blends coalesced either from their common inclusion compound formed with gamma-cyclodextrin or precipitated from their common solution}, volume={91}, ISSN={["1873-2321"]}, DOI={10.1016/j.polymdegradstab.2006.03.006}, abstractNote={Direct insertion probe pyrolysis mass spectrometry (DIP-MS) analyses of a PC/PMMA blend, coalesced from their common inclusion compound (ICs) formed with host γ-cyclodextrin (γ-CD) through removal of the γ-CD host, and a physical PC/PMMA blend, precipitated from their common solution, have been performed and compared with those of the coalesced and as-received homopolymers. A slight increase in the thermal stability of the PMMA component in the presence of PC was recorded both by TGA and DIP-MS compared to the corresponding homopolymers. The DIP-MS observations pointed out that the thermal stability and degradation products of these polymers are affected once they are included inside the IC channels created by the stacked host CDs. DIP-MS observations suggested that for both coalesced and physical PC/PMMA blends, an exchange reaction occurs between carbonates of PC and MMA, formed by depolymerization of PMMA above 300 °C, most likely due to diffusion of MMA monomer at the interface or even into the PC domains, where it can react producing low molecular weight PC bearing methyl carbonate and methacrylate chain ends. The results also indicated an ester–ester interchange reaction between PC and PMMA yielding a graft copolymer and low molecular weight PC chains bearing methyl carbonate end groups in the case of the coalesced blend. This can be atttributed to the presence of specific molecular interactions between the intimately mixed PMMA and PC chains in the coalesced PC/PMMA blend.}, number={10}, journal={POLYMER DEGRADATION AND STABILITY}, author={Uyar, Tamer and Oguz, Gulcan and Tonelli, Alan E. and Hacaloglu, Jale}, year={2006}, month={Oct}, pages={2471–2481} }
 @article{uyar_rusa_wang_rusa_hacaloglu_tonelli_2005, title={Intimate blending of binary polymer systems from their common cyclodextrin inclusion compounds}, volume={43}, ISSN={["1099-0488"]}, DOI={10.1002/polb.20546}, abstractNote={A procedure for the formation of intimate blends of three binary polymer systems polycarbonate (PC)/poly(methyl methacrylate) (PMMA), PC/poly(vinyl acetate) (PVAc) and PMMA/PVAc is described. PC/PMMA, PC/PVAc, and PMMA/PVAc pairs were included in γ-cyclodextrin (γ-CD) channels and were then simultaneously coalesced from their common γ-CD inclusion compounds (ICs) to obtain intimately mixed blends. The formation of ICs between polymer pairs and γ-CD were confirmed by wide-angle X-ray diffraction (WAXD), fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). It was observed [solution 1H nuclear magnetic resonance (NMR)] that the ratios of polymers in coalesced PC/PMMA and PC/PVAc binary blends are significantly different than the starting ratios, and PC was found to be preferentially included in γ-CD channels when compared with PMMA or PVAc. Physical mixtures of polymer pairs were also prepared by coprecipitation and solution casting methods for comparison. DSC, solid-state 1H NMR, thermogravimetric analysis (TGA), and direct insertion probe pyrolysis mass spectrometry (DIP-MS) data indicated that the PC/PMMA, PC/PVAc, and PMMA/PVAc binary polymer blends were homogeneously mixed when they were coalesced from their ICs. A single, common glass transition temperature (Tg) recorded by DSC heating scans strongly suggested the presence of a homogeneous amorphous phase in the coalesced binary polymer blends, which is retained after thermal cycling to 270 °C. The physical mixture samples showed two distinct Tgs and 1H T1ρ values for the polymer components, which indicated phase-separated blends with domain sizes above 5 nm, while the coalesced blends exhibited uniform 1H spin-lattice relaxation values, indicating intimate blending in the coalesced samples. The TGA results of coalesced and physical binary blends of PC/PMMA and PC/PVAc reveal that in the presence of PC, the thermal stability of both PMMA and PVAc increases. Yet, the presence of PMMA and PVAc decreases the thermal stability of PC itself. DIP-MS observations suggested that the degradation mechanisms of the polymers changed in the coalesced blends, which was attributed to the presence of molecular interactions between the well-mixed polymer components in the coalesced samples. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 2578–2593, 2005}, number={18}, journal={JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS}, author={Uyar, T and Rusa, CC and Wang, XW and Rusa, M and Hacaloglu, J and Tonelli, AE}, year={2005}, month={Sep}, pages={2578–2593} }
 @article{rusa_wei_bullions_shuai_uyar_tonelli_2005, title={Nanostructuring polymers with cyclodextrins}, volume={16}, ISSN={["1099-1581"]}, DOI={10.1002/pat.566}, abstractNote={Abstract Bulk solid polymer samples formed by the coalescence of guest polymer chains from their inclusion compounds (ICs) formed with host cyclodextrins (CDs) can result in significant reorganization of their phase structures, morphologies, and even chain conformations from those more commonly produced from randomly‐coiled, entangled polymer solutions and melts. When the cyclic host CDs are threaded by polymer chains to form crystalline polymer‐CD‐ICs, the guest polymers become highly extended due to the narrow host CD diameters (∼5, 7, and 9 Å for α ‐, β ‐, and γ ‐CDs) and are segregated from neighboring guest polymer chains by the CD‐IC channel walls. As a consequence, when polymer‐CD‐IC crystals are treated with CD solvents that do not dissolve the guest polymers or are treated with amylase enzymes, the resulting coalesced bulk polymer samples often display properties distinct from those of normally produced bulk samples of the same polymers. In this article the CD‐IC processing of polymers to generate novel polymer microstructures and morphologies are described, to control the phase separation of immiscible blocks in block copolymers, and to form well‐mixed intimate blends of two or more polymers that are normally incompatible. The thermal and temporal stabilities of polymer samples coalesced from their ICs formed with CDs will also be mentioned, and it is suggested that the range of polymer properties can be greatly expanded by their CD‐IC processing. Copyright © 2005 John Wiley & Sons, Ltd.}, number={2-3}, journal={POLYMERS FOR ADVANCED TECHNOLOGIES}, author={Rusa, CC and Wei, M and Bullions, TA and Shuai, XT and Uyar, T and Tonelli, AE}, year={2005}, pages={269–275} }
 @article{uyar_rusa_hunt_aslan_hacaloglu_tonelli_2005, title={Reorganization and improvement of bulk polymers by processing with their cyclodextrin inclusion compounds}, volume={46}, ISSN={["1873-2291"]}, DOI={10.1016/j.polymer.2005.04.002}, abstractNote={The formation of polymer-cyclodextrin inclusion compounds of polycarbonate (PC), poly(methylmethacrylate) (PMMA) and poly(vinylacetate) (PVAc) guests with host γ-cyclodextrin (γ-CD) have been successfully achieved. Coalesced bulk polymer samples were obtained by removal of γ-CD from their inclusion compounds (ICs). The chemical and crystalline structures of ICs and coalesced PC, PMMA and PVAc were studied by Fourier transform infrared spectroscopy (FTIR) and wide-angle X-ray diffraction (WAXD). The thermal transitions, thermal stability, and degradation mechanisms of the samples were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and direct insertion probe pyrolysis mass spectrometry (DIP-MS). FTIR findings indicated that the chain conformations of the bulk polymers were altered when they were included inside the CD channels and extended chain conformations were retained when coalesced from their ICs. Significant improvements were observed in the thermal transitions observed for the coalesced polymers, with glass transitions shifted to higher temperatures. The TGA results reveal that the thermal stabilities of coalesced polymers increased slightly compared to the corresponding as-received polymers. The DIP-MS observations indicated that the thermal stability and degradation products of the polymers are affected once the polymers chains are included inside the γ-CD-IC cavities.}, number={13}, journal={POLYMER}, author={Uyar, T and Rusa, CC and Hunt, MA and Aslan, E and Hacaloglu, J and Tonelli, AE}, year={2005}, month={Jun}, pages={4762–4775} }
 @article{uyar_el-shafei_wang_hacaloglu_tonelli_2005, title={The Solid Channel Structure Inclusion Complex Formed Between Guest Styrene and Host γ-Cyclodextrin}, volume={55}, ISSN={0923-0750 1573-1111}, url={http://dx.doi.org/10.1007/s10847-005-9026-5}, DOI={10.1007/s10847-005-9026-5}, number={1-2}, journal={Journal of Inclusion Phenomena and Macrocyclic Chemistry}, publisher={Springer Science and Business Media LLC}, author={Uyar, Tamer and El-Shafei, Ahmed and Wang, Xingwu and Hacaloglu, Jale and Tonelli, Alan E.}, year={2005}, month={Dec}, pages={109–121} }
 @article{rusa_uyar_rusa_tonelli_2004, title={A miscible polycarbonate/poly(methyl methacrylate)/poly( vinyl acetate) ternary blend via coalescence from their common gamma-cyclodextrin inclusion compound}, volume={42}, journal={Journal of Polymer Science. Part B, Polymer Physics}, author={Rusa, C. C. and Uyar, T. and Rusa, M. and Tonelli, A. E.}, year={2004} }
 @article{rusa_uyar_rusa_hunt_wang_tonelli_2004, title={An intimate polycarbonate/poly(methyl methacrylate)/poly(vinyl acetate) ternary blend via coalescence from their common inclusion compound with gamma-cyclodextrin}, volume={42}, ISSN={["1099-0488"]}, DOI={10.1002/polb.20273}, abstractNote={In this study, we successfully report an intimate ternary blend system of polycarbonate (PC)/poly(methyl methacrylate) (PMMA)/poly(vinyl acetate) (PVAc) obtained by the simultaneous coalescence of the three guest polymers from their common γ-cyclodextrin (γ-CD) inclusion compound (IC). The thermal transitions and the homogeneity of the coalesced ternary blend were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The observation of a single, common glass transition strongly suggests the presence of a homogeneous amorphous phase in the coalesced ternary polymer blend. This was further substantiated by solid-state 13C NMR observation of the T1ρ(1H)s for each of the blend components. For comparison, ternary blends of PC/PMMA/PVAc were also prepared by traditional coprecipitation and solution casting methods. TGA data showed a thermal stability for the coalesced ternary blend that was improved over the coprecipitated blend, which was phase-segregated. The presence of possible interactions between the three polymer components was investigated by infrared spectroscopy (FTIR). The analysis indicates that the ternary blend of these polymers achieved by coalescence from their common γ-CD–IC results in a homogeneous polymer blend, possibly with improved properties, whereas coprecipitation and solution cast methods produced phase separated polymer blends. It was also found that control of the component polymer molar ratios plays a key role in the miscibility of their coalesced ternary blends. Coalescence of two or more normally immiscible polymers from their common CD–ICs appears to be a general method for obtaining well-mixed, intimate blends. © 2004 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 42: 4182–4194, 2004}, number={22}, journal={JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS}, author={Rusa, CC and Uyar, T and Rusa, M and Hunt, MA and Wang, XW and Tonelli, AE}, year={2004}, month={Nov}, pages={4182–4194} }
 @article{rusa_wei_shuai_bullions_wang_rusa_uyar_tonelli_2004, title={Molecular mixing of incompatible polymers through formation of and coalescence from their common crystalline cyclodextrin inclusion compounds}, volume={42}, ISSN={["1099-0488"]}, DOI={10.1002/polb.20272}, abstractNote={We describe the successful mixing of polymer pairs and triplets that are normally incompatible to form blends that possess molecular-level homogeneity. This is achieved by the simultaneous formation of crystalline inclusion compounds (ICs) between host cyclodextrins (CDs) and two or more guest polymers, followed by coalescing the included guest polymers from their common CD–ICs to form blends. Several such CD–IC fabricated blends, including both polymer1/polymer2 binary and polymer1/ polymer2/polymer3 ternary blends, are described and examined by means of X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, Fourier transform infrared spectroscopy, and solid-state NMR to probe their levels of mixing. It is generally observed that homogeneous blends with a molecular-level mixing of blend components is achieved, even when the blend components are normally immiscible by the usual solution and melt blending techniques. In addition, when block copolymers composed of inherently immiscible blocks are coalesced from their CD–ICs, significant suppression of their normal phase-segregated morphologies generally occurs. Preliminary observations of the thermal and temporal stabilities of the CD–IC coalesced blends and block copolymers are reported, and CD–IC fabrication of polymer blends and reorganization of block copolymers are suggested as a potentially novel means to achieve a significant expansion of the range of useful polymer materials. © 2004 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 42: 4207–4224, 2004}, number={23}, journal={JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS}, author={Rusa, CC and Wei, M and Shuai, X and Bullions, TA and Wang, X and Rusa, M and Uyar, T and Tonelli, AE}, year={2004}, month={Dec}, pages={4207–4224} }
 @article{uyar_rusa_tonelli_2004, title={Polymerization of styrene in cyclodextrin channels: Can confined free-radical polymerization yield stereoregular polystyrene?}, volume={25}, ISSN={["1521-3927"]}, DOI={10.1002/marc.200400165}, abstractNote={Summary: Modeling of polystyrenes (PS) with various stereosequences in the narrow cylindrical channels corresponding to those found in γ-cyclodextrin inclusion compounds (CD ICs) has been conducted. Based on the conformational modeling of stereoisomeric polystyrenes (PSs) in narrow channels, it was suggested that polystyrene with unusual microstructures might be produced by the constrained polymerization of styrene monomer in its γ-CD-IC crystals. The in-situ polymerization of styrene inside the narrow channels of its γ-CD-IC crystals was performed in both organic and aqueous media. The 13C NMR spectrum of PS synthesized inside the γ-CD channels in an aqueous medium shows some differences when compared to the 13C NMR spectrum of PS synthesized in toluene. These are presumably because of differences in their stereosequences. Here, we report our preliminary findings. Schematic of cyclodextrin inclusion compound (CD-IC) channels with included polymer guests.}, number={15}, journal={MACROMOLECULAR RAPID COMMUNICATIONS}, author={Uyar, T and Rusa, M and Tonelli, AE}, year={2004}, month={Aug}, pages={1382–1386} }
 @article{hunt_jung_shamsheer_uyar_tonelli_2004, title={Polystyrenes in channels}, volume={45}, ISSN={["1873-2291"]}, DOI={10.1016/j.polymer.2003.03.002}, abstractNote={Polystyrenes (PS) with various stereosequences have been modeled in narrow cylindrical channels corresponding to those found in polymer–inclusion compounds (ICs), such as those formed with host cyclodextrins (CDs), where the polymers reside as guests. Isotactic (i) PS is found to fit in channels with narrower diameters (D) than syndiotactic (s) PS, when both adopt conformations permitted by the Yoon, Sundararajan, Flory RIS conformational model of PSs, while atactic (a) PS can be included in channels with D intermediate to those for i- and s-PS. In ICs formed with host γ-CD and guest a-PS homopolymer and guest poly(ϵ-caprolactone) (PCL)-b-a-PS diblock copolymer it was observed that the a-PS homopolymer and the a-PS copolymer blocks were and were not included, respectively. Thus, it appears that a-PS is barely able to be threaded by γ-CD, whose internal diameter is ∼8 Å. Because the channel conformers found for i- and s-PS have smaller and larger diameters, respectively, than those found for a-PS, we would expect i-PS to be complexed by γ-CD, while s-PS might not. As a consequence IC formation with γ-CD may provide a means to physically separate the stereoregular forms of polystyrene. In addition, only the mrm and rmr PS stereoisomers show channel conformations with significant probabilities, so we suggest that in situ polymerization of styrene monomer in the narrow channels of its IC formed with γ-CD might produce a new stereoregular form of PS with regularly alternating m and r diads.}, number={4}, journal={POLYMER}, author={Hunt, MA and Jung, DW and Shamsheer, M and Uyar, T and Tonelli, AE}, year={2004}, month={Feb}, pages={1345–1347} }