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Double networking

The unique properties of SDIBS are due to the branched structure of the DIB core, and consequently the double-network stmcture in which a covalent network is embedded into a self-assembling thermolabile network, as shown in Figure 7.9. [Pg.205]

D-TEM gave 3D images of nano-filler dispersion in NR, which clearly indicated aggregates and agglomerates of carbon black leading to a kind of network structure in NR vulcanizates. That is, filled rubbers may have double networks, one of rubber by covalent bonding and the other of nanofiller by physical interaction. The revealed 3D network structure was in conformity with many physical properties, e.g., percolation behavior of electron conductivity. [Pg.544]

In Sect. 2, a double network structure was proposed for the PVA films in the water-swollen state, i.e. an amorphous chain (tie chain) network and a fibrillar network. The blue color complex is considered to be formed mostly in the former network. Subsequently what happens in PVA films during soaking in aqueous solutions were discussed. The contractions of the volume and the long... [Pg.126]

Keywords Artificial cartilage Cell scaffold Double network Hydrogel Fow friction Strength Toughness... [Pg.205]

Fig. 22 Phase-contrast micrographs of BFAECs cultured on double network (DN) and triple network (TN) gels PNaAMPS/PDMAAm DN gel (a), PNaAMPS/PDMAAm/poly(NaAMPS-co-DMAAni I TN gels (b-d). In the third network. NaAMPS molar fraction was F = 0.5. The cross-linker concentration of the third network was 0 (a), 2 (b), and 4 mol% (c). Scale bar. lOOpm. (Reproduced, with permission, from [98])... Fig. 22 Phase-contrast micrographs of BFAECs cultured on double network (DN) and triple network (TN) gels PNaAMPS/PDMAAm DN gel (a), PNaAMPS/PDMAAm/poly(NaAMPS-co-DMAAni I TN gels (b-d). In the third network. NaAMPS molar fraction was F = 0.5. The cross-linker concentration of the third network was 0 (a), 2 (b), and 4 mol% (c). Scale bar. lOOpm. (Reproduced, with permission, from [98])...
Acknowledgements This research was financially supported by a Grant-in-Aid for the Specially Promoted Research (No. 18002002) from the Ministry of Education, Science, Sports and Culture of Japan. The author thanks T. Kurokawa, Y. Tanaka, Y. M. Chen, H. Na, H. Fumkawa, and the graduate students in LSW for their contributions to double network gel research. The author also thanks K. Yasuda, C. Creton, W. L. Wu, and H. Brown, for useful discussions and contributions to this work. [Pg.243]

Gong JP, Katsuyama Y, Kurokawa T, Osada Y (2(X)3) Double network hydrogels with ex-... [Pg.244]

Shibayama M (2004) Structural characteristics of double network gels with extremely high... [Pg.244]

Tanaka Y. Kuwabara R, Na YH, Kurokawa T, Gong JP, Osada Y (2005) Determination of fracture energy of double network hydrogels. J Phys Chem B 109 11559-11562... [Pg.245]

Na YH, Tanaka Y, Kawauchi Y, Furukawa H, Sumiyoshi T, Gong JP, Osada Y (2006) Necking phenomenon of double-network gel. Macromolecules 39 4641-4645... [Pg.245]

Huang M, Furukawa H, Tanaka Y, Nakajima T, Osada Y, Gong JP (2007) Importance of entanglement between first and second components in high-strength double network gels. Macromolecules 40 6658-6664... [Pg.245]

Webber RE, Creton C, Brown HR, Gong JP (2007) Large strain hysteresis and Mullins effect of tough double-network hydrogels. Macromolecules 40 2919-2927... [Pg.245]

Tominaga T, Tirumala VR, Lin EK, Gong JP, Furukawa H, Osada Y Wu WL (2007) The molecular origin of enhanced toughness in double-network hydrogels A neutron scattering study. Polymer 48 7449-7454... [Pg.245]

Tominaga T, Tirumala VR, Lee S, Lin EK Gong JP, Wu WL (2008) Thermodynamic interactions in double-network hydrogels. J Phys Chem B 112 3903-3909... [Pg.245]

Brown HR (2007) A model ofthe fracture of double network gels. Macromolecules 40 3815-3818... [Pg.245]

Tanaka Y (2007) A local damage model for anomalous high toughness of double-network gels. Europhys Lett 78 5600.5... [Pg.245]

Nakayama A, Kakugo A, Gong JP, Osada Y, Takai M, Erata T, Kawano S (2004) High mechanical strength double-network hydrogel with bacterial cellulose. Adv Fund Mater 14 1124-1128... [Pg.245]

Yasuda K. Gong JP. Katsuyama Y, Nakayama A, Tanabe Y, Kondo E, Ueno M, Osada Y (2005) Biomechanical properties of high toughness double network hydrogels. Biomaterials 26 4469-4475... [Pg.248]

Yasuda K. Tanabe Y, Azuma C, Taniguro H, Onodera S, Suzuki A, Chen YM, Gong JP, Osada Y (2008) Biological responses of novel high-toughness double network hydrogels in muscle and the subcutaneous tissues. J Mater Sci Mater Med 19 1379-1387... [Pg.248]

The complexity of the systems can be further increased through the combination, in the same crystal frame, of the three configurations 18a, 18b(R), and 18b(L). This is the case in the Ta2P2Sn double network introduced in Sect. 3.3 (in 27 is presented one of the two interlocked networks of the structure) for which we observe tunnels (made of five (M2(X2)X9) units) with clockwise and... [Pg.296]

Latex IPNs offer unique synthetic opportunities. Since an IPN double network, ideally, is contained in each sub-microscopic latex particle, special effects are possible. The simplest case involves a crosshnked seed latex particle that is polymerized first. Then, monomer mix II is added. There are two subclasses. First, all of the monomer mix II can be added at once, or at least far more rapidly than the polymerization takes place. In that case, the monomer will first swell the latex particle, and then the excess monomer forms a shell around the swollen core. If the monomer mix II is added slowly, or more slowly than the initiator can polymerize the material, little monomer can swell into the particle, and a better defined core/sheU structure develops. [Pg.421]

Fig. 19 X-ray structure of [ Ni(Cj H2 N ) 3(bpdc)3]-2 CjHjN- 6 H O. (a) Structure of the linear coordination polymer, (b) Double network of threefold braids where macrocycle grooves are created by bpdc " ligands, (c) View showing the stacking of the linear chains to generate ID channels [89]. Copyright WUey-VCH Verlag GmbH Co. KGaA. Reproduced with permission... Fig. 19 X-ray structure of [ Ni(Cj H2 N ) 3(bpdc)3]-2 CjHjN- 6 H O. (a) Structure of the linear coordination polymer, (b) Double network of threefold braids where macrocycle grooves are created by bpdc " ligands, (c) View showing the stacking of the linear chains to generate ID channels [89]. Copyright WUey-VCH Verlag GmbH Co. KGaA. Reproduced with permission...
Gong, J.P., Katsuyama, Y., Kurokawa, T., Osada, Y. Double network hydrogels with extremely high mechanical strength. Adv. Mater. 15, 1155-1158 (2003)... [Pg.18]

Azuma, C., Yasuda, K., Tanabe, Y., Taniguro, H., Kanaya, F., Nakayama, A., et al., 2007. Biodegradation of high-toughness double network hydrogels as potential materials for artificial cartilage. J. Biomed. Mater. Res. A 81, 373—380. [Pg.281]

See other pages where Double networking is mentioned: [Pg.10]    [Pg.96]    [Pg.97]    [Pg.97]    [Pg.98]    [Pg.101]    [Pg.127]    [Pg.50]    [Pg.63]    [Pg.205]    [Pg.208]    [Pg.208]    [Pg.218]    [Pg.248]    [Pg.96]    [Pg.10]    [Pg.1849]    [Pg.17]    [Pg.217]   


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Double network hydrogels

Double networking Payne effect

Double networking cured rubber

Double networking distribution functions

Double networking elastomers

Double networking mechanism)

Double networking peroxide radicals

Double networking rubber

Double networking single chemical bond

Double networking structure

Double networking vulcanizates

Double-network cryogels

Double-network gels

Network double

Transient double-network model

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