Introduction

Semlyen, J.A.

doi:10.1007/978-94-009-4175-5_1

Cited by 90 publications

(115 citation statements)

References 105 publications

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“…[67][68][69] Higher retention volumes in SEC measurements were also reported for cyclic poly(ethylene oxide)s, 72,73 cyclic PDMS, 258 264,265 At this point, two review articles summarizing synthetic methods and physical properties of cyclic polysiloxanes should be mentioned. 187,266 All these experimental results were in good agreement with an early theoretical treatment of structure-property relationships of cyclic polymers. 266 All these measurements also demonstrate that the different properties of cyclic and linear polymers are independent of the chemical structure of the repeat units.…”

Section: Solution Propertiessupporting

confidence: 78%

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Cyclic polymers: Synthetic strategies and physical properties

Kricheldorf

2009

J. Polym. Sci. A Polym. Chem.

394

442

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Syntheses of cyclic polymers including cyclic homopolymers, cyclic block copolymers, sun-shaped polymers, and tadpole polymers are discussed on the basis of a differentiation between synthetic methods and synthetic strategies (e.g., polycondensation, ring-ring equilibration, or ring-expansion polymerization). Furthermore, all synthetic methods are classified as kinetically or thermodynamically controlled reactions. Characteristic properties of cyclic polymers such as smaller hydrodynamic volume, lower melt viscosities, and higher thermostabilities are compared to the properties of their linear counterparts. Furthermore, the nanophase separation of cyclic diblock copolymers is discussed.

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Section: Solution Propertiessupporting

confidence: 78%

“…187,266 All these experimental results were in good agreement with an early theoretical treatment of structure-property relationships of cyclic polymers. 266 All these measurements also demonstrate that the different properties of cyclic and linear polymers are independent of the chemical structure of the repeat units.…”

Section: Solution Propertiessupporting

confidence: 78%

Cyclic polymers: Synthetic strategies and physical properties

Kricheldorf

2009

J. Polym. Sci. A Polym. Chem.

394

442

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“…[4] The extensions of these ratios to the nonideal case are defined as functions of the cluster expansion. [8] The r-ratio is displayed as functions of the stiffness parameter for closed and open chains of different number of effective monomers in Figure 7.…”

Section: Ratio Of Radius Of Gyration To Hydrodynamic Radiusmentioning

confidence: 99%

“…[1][2][3][4] The complex behavior of bacterial or mitochondrial DNA of eukaryotes and its function in biochemical processes is dictated by the topology and overall shape of DNA. In spite of the relevance of naturally occurring cyclic macromolecules to manifold biochemical processes, the static and dynamic properties of ring polymers are explored less than those of analogous linear chains.…”

Section: Introductionmentioning

confidence: 99%

Stiffening Transition in Semiflexible Cyclic Macromolecules

Benková

Cifra

2010

Macro Theory & Simulations

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Conformational changes in cyclic and linear chains triggered by increasing chain stiffness are explored using MC simulations. The transition to the rigid strained objects is continuous and steeper for cycles. Circular macromolecules of contour length equal to ≈5 persistence lengths are characterized as rigid strained objects with a lowered spatial dimensionality. The coil regime is almost omitted in the static structure factor already for semiflexible chains of both architectures and the flattening of stiffer cycles is evidenced by oscillations superimposed on the rod‐like behavior of corresponding linear chains. The orientational correlation function shows qualitative difference in behavior of cyclic and linear chains. magnified image

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“…[1] These unique properties of cyclic polymers have attracted extensive attention in macromolecular science in the last decades.…”

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confidence: 99%