Biological and Synthetic Polymer NetworksO. Kramer Biological and Synthetic Polymer Networks contains 36 papers selected from the papers presented at NETWORKS 86, the 8th Polymer Networks Group Meeting. NETWORKS 86 was held in Elsinore, Denmark, on 31 August 5 September 1986. A total of nine invited main lectures and 68 contributed papers were presented at the meeting. A wide range of important biological and synthetic materials consist of three-dimensional polymer networks. The properties range from very stiff structural materials to extremely flexible rubbery materials and gels. Most polymer networks are permanent networks held together by covalent bonds. Such networks are insoluble but they may swell considerably in good solvents. Polymer networks held together by ionic bonds, hydrogen bonds or so-called entanglements are of a more temporary nature. At long times they exhibit a tendency to flow, and they are soluble in good solvents. The paper by Professor Walther Burchard and his co-workers, 'Covalent, Thermoreversible and Entangled Networks: An Attempt at Comparison', serves as a general introduction to polymer networks. The book contains both theoretical and experimental papers on the formation, characterisation and properties of polymer networks. Two topics were given special sessions at the meeting, namely Biological Networks and Swelling of Polymer Networks. |
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Results 1-3 of 39
Page 305
... resins showed no swelling up to molecular weights of 10 000 ; in the higher molecular weight region the swelling ratios increase continuously up to a factor of 9 . Two resins were measured in the semidilute regime . The data obtained ...
... resins showed no swelling up to molecular weights of 10 000 ; in the higher molecular weight region the swelling ratios increase continuously up to a factor of 9 . Two resins were measured in the semidilute regime . The data obtained ...
Page 310
... resins the radii of gyration were measured by light scattering , R , of the DGEBA / BA resins with less experimental error by SANS.12 Again the four curves of the different series lie close together and allow no clear distinction . The ...
... resins the radii of gyration were measured by light scattering , R , of the DGEBA / BA resins with less experimental error by SANS.12 Again the four curves of the different series lie close together and allow no clear distinction . The ...
Page 321
... resin . 1 INTRODUCTION This work was initiated by the commercial availability of a novel class of unsaturated resins known as oligourethane acrylates . These resins may be considered roughly as the urethane analogues of vinyl ester resins ...
... resin . 1 INTRODUCTION This work was initiated by the commercial availability of a novel class of unsaturated resins known as oligourethane acrylates . These resins may be considered roughly as the urethane analogues of vinyl ester resins ...
Contents
Structure and Rheology of Fibrin Networks | 41 |
NonGaussian Elastic Properties in Biopolymer Networks | 57 |
Fibrinogen and Fibrin Studied by Smallangle Neutron | 79 |
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adipate aggregation amino acid amylose average behaviour bonds branched calculated Chem chemical clots complex constant copolymer crosslinking curve cuticle cyclization decrease deformation density determined deuterated diluent dilution DuĊĦek effect elastic modulus elastin elastomer entanglement equation equilibrium experimental experiments fibres fibrin fibrinogen Flory frame silk function galactomannan gel point gelatin gelation groups hydrodynamic radius increase inelastic loops interactions intramolecular intramolecular reaction kinetic length linear Macromolecules maltodextrin measurements mechanical melting mol/litre molar molar mass molecular weight molecules monomer network chains network formation neutron scattering observed obtained parameters Phys plot polybutadiene polyester polymer polymer networks polymerisation polymerization predicted properties protein quaternary radius of gyration random ratio relaxation resins ring samples segments shear modulus shown in Fig shows solution solvent spectra structure superspecies swelling degree swollen temperature theory uncrosslinked unsaturated values viscosity volume fraction