2001
DOI: 10.1016/s0079-6700(01)00031-4
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Chiral polyisocyanates, a special class of helical polymers

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Cited by 125 publications
(85 citation statements)
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“…model molecule, which was blocked at the ends with methyl groups. The dimensions of the orthorhombic box for simulations in chloroform and methanol solutions were (99.31 99.31 115.00) and (105.65 105.65 115.25) 3 , respectively, while the total number of particles considered explicitly was 35 496 (8267 chloroform molecules) and 115 888 (18 910 methanol molecules). The energy was calculated with the AMBER force field, [26] and all parameters required for PG2 were taken from the AMBER libraries with the exception of the electrostatic ones.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…model molecule, which was blocked at the ends with methyl groups. The dimensions of the orthorhombic box for simulations in chloroform and methanol solutions were (99.31 99.31 115.00) and (105.65 105.65 115.25) 3 , respectively, while the total number of particles considered explicitly was 35 496 (8267 chloroform molecules) and 115 888 (18 910 methanol molecules). The energy was calculated with the AMBER force field, [26] and all parameters required for PG2 were taken from the AMBER libraries with the exception of the electrostatic ones.…”
Section: Methodsmentioning
confidence: 99%
“…[1] They have been prepared either by achiral polymerization of optically active monomers such as acetylenes, [2] isocyanates, [3] and silanes, [4] or by helix-senseselective polymerization of achiral monomers (carbodiA C H T U N G T R E N N U N G im-A C H T U N G T R E N N U N G ides [5] and methacrylates [6] ) and chiral monomers (isocyanides [7] and methacrylamides [8] ). The former helical polymers are dynamic in solution, and right-handed helices can change into left-handed ones and vice versa under certain conditions, while the helical conformations of the latter are more persistent.…”
Section: Introductionmentioning
confidence: 99%
“…[1][2][3][4][5][6][7][8] Considerable research efforts have been dedicated to improving the understanding of the conformation and packing of PAICs. Specifically, poly(n-butyl isocyanate) (PBIC) and poly(n-hexyl isocyanate) (PHIC) (Figure 1a) have been thoroughly investigated as representative PAICs.…”
Section: Introductionmentioning
confidence: 99%
“…The side-chain approach has also been successfully utilized to photomodulate the helix-coil transition in related poly(isocyanate)s with appended azobenzene photochromes. [9] Abstract: Introduction of photochromic azobenzene units into amphiphilic oligo(meta-phenylene ethynylene)s allowed photocontrol over the helix-coil transition in this important class of foldamers. Two design principles were followed in efforts to accommodate cisand trans-azobenzene moieties within the helical structure to selectively turn the helical state on and off, respectively.…”
Section: Introductionmentioning
confidence: 99%