Preparation and Characterization of Inclusion Complexes of Poly(dimethylsiloxane)s with γ-Cyclodextrin Without Utilizing Sonic Energy

Preparation of supramolecular corrosion-inhibiting nanocontainers for self-protective hybrid nanocomposite coatings

“…The truncated cone shape of cyclodextrins with an extended secondary hydroxyl group is due to chair formation of the glucopyranose units [12][13][14][15][16]. CDs are widely used as "molecular cages" in pharmaceutical, agrochemical, food and cosmetic industries, in analytical sciences, for separation processes (e.g,.…”

“…CDs are widely used as "molecular cages" in pharmaceutical, agrochemical, food and cosmetic industries, in analytical sciences, for separation processes (e.g,. for environmental protection) and as a catalyst, in addition to being used in the textile and packaging industries [14][15][16][17]. CDs have limited aqueous solubility due to strong intermolecular hydrogen bonding in the crystal state; substitution of the H-bond forming and -OH group improves their solubility [15,16].…”

Synthesis and Characterization of PDMS Based Triblock and Pentablock Copolymers

“…3.10 at −60°C. PMMA, PMA, PVAc and PSt segments exhibited T g values of 90, 5, 40 and 105°C [26][27][28][29], respectively for the corresponding block copolymers. Considering the DSC results, one can conclude that PDMS-based pentablock copolymers have been synthesized successfully.…”

“…The 1 H-NMR of block copolymers showed a signal at 0.0-0.2 ppm associated with CH 3 -Si methyl protons of PDMS along with the signals at 2.1-2.3 and 6.6-7.1 ppm corresponded to OCOCH 3 group from the PVAc segment and PSt segment respectively. Signals at 0.8-1.0, 1.9-2.1 and 3.6 ppm corresponded to CH 3 , CH 2 and COOCH 3 group from the PMMA and PMA segment [26][27][28][29]. Therefore, it is possible to synthesize the novel PDMS-based block copolymers via ATRP of monomers such as vinyl acetate, methyl methacrylate, methyl acrylate and styrene in the presence of bis (haloalkyl)-terminated PDMS macroinitiator [29,30].…”

“…Signals at 0.8-1.0, 1.9-2.1 and 3.6 ppm corresponded to CH 3 , CH 2 and COOCH 3 group from the PMMA and PMA segment [26][27][28][29]. Therefore, it is possible to synthesize the novel PDMS-based block copolymers via ATRP of monomers such as vinyl acetate, methyl methacrylate, methyl acrylate and styrene in the presence of bis (haloalkyl)-terminated PDMS macroinitiator [29,30]. The well-define microstructure can be used in macromolecular design of the block copolymer, assuming one can increase the mole ratio of the monomer or used different molecular weight of the PDMS macroinitiator in the structure [26,28].…”