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Page 1
Low-Viscosity Route to High-Molecular-Weight Water-Soluble Polymers: Exploiting the Salt Sensitivity of Poly(N-acryloylmorpholine).
McBride RJ, Geneste E, Xie A, Ryan AJ, Miller JF, Blanazs A, Rösch C, Armes SP. McBride RJ, et al. Macromolecules. 2024 Feb 23;57(5):2432-2445. doi: 10.1021/acs.macromol.3c02616. eCollection 2024 Mar 12. Macromolecules. 2024. PMID: 38495382 Free PMC article.
In fact, relatively high dispersities are actually desirable if such copolymers are to be used as viscosity modifiers because solution viscosity correlates closely with M(w). Static light scattering studies were also conducted, with a Zimm plot indicating an absolute M(w) …
In fact, relatively high dispersities are actually desirable if such copolymers are to be used as viscosity modifiers because solution visco …
Effect of Chain Length Dispersity on the Mobility of Entangled Polymers.
Peters BL, Salerno KM, Ge T, Perahia D, Grest GS. Peters BL, et al. Phys Rev Lett. 2018 Aug 3;121(5):057802. doi: 10.1103/PhysRevLett.121.057802. Phys Rev Lett. 2018. PMID: 30118305
Here, the effects of dispersity on chain mobility are studied for entangled, disperse melts using a coarse-grained model for polyethylene. Polymer melts with chain lengths set to follow a Schulz-Zimm distribution for the same average M_{w}=36 kg/mol with D_{M}=1.0 to 1.16, …
Here, the effects of dispersity on chain mobility are studied for entangled, disperse melts using a coarse-grained model for polyethylene. P …
Resin flow responses to fertilization, wounding and fungal inoculation in loblolly pine (Pinus taeda) in North Carolina.
Knebel L, Robison DJ, Wentworth TR, Klepzig KD. Knebel L, et al. Tree Physiol. 2008 Jun;28(6):847-53. doi: 10.1093/treephys/28.6.847. Tree Physiol. 2008. PMID: 18381265
Resin flow is the primary means of natural defense against southern pine beetle (Dendroctonus frontalis Zimm.), the most important insect pest of Pinus spp. in the southern United States. ...
Resin flow is the primary means of natural defense against southern pine beetle (Dendroctonus frontalis Zimm.), the most important in …
On-demand degrafting and the study of molecular weight and grafting density of poly(methyl methacrylate) brushes on flat silica substrates.
Patil RR, Turgman-Cohen S, Šrogl J, Kiserow D, Genzer J. Patil RR, et al. Langmuir. 2015 Mar 3;31(8):2372-81. doi: 10.1021/la5044766. Epub 2015 Feb 17. Langmuir. 2015. PMID: 25654273
The SEC eluograms were fit to various polymer distributions, namely Zimm-Schulz, ATRP in continuous stirred tank reactor, Wesslau, Schulz-Flory, and Smith et al. ...
The SEC eluograms were fit to various polymer distributions, namely Zimm-Schulz, ATRP in continuous stirred tank reactor, Wesslau, Sc …
A conceptual framework: redefining forest soil's critical acid loads under a changing climate.
McNulty SG, Boggs JL. McNulty SG, et al. Environ Pollut. 2010 Jun;158(6):2053-8. doi: 10.1016/j.envpol.2009.11.028. Epub 2009 Dec 31. Environ Pollut. 2010. PMID: 20045233
However, ecosystems can be simultaneously under multiple ecosystem stresses and a single critical soil acid load level may not accurately reflect ecosystem health risk when subjected to multiple, episodic environmental stress. For example, the Appalachian Mountains of western Nor …
However, ecosystems can be simultaneously under multiple ecosystem stresses and a single critical soil acid load level may not accurately re …
Thermodynamic parameters for the helix-coil transition of oligopeptides: molecular dynamics simulation with the peptide growth method.
Wang L, O'Connell T, Tropsha A, Hermans J. Wang L, et al. Proc Natl Acad Sci U S A. 1995 Nov 21;92(24):10924-8. doi: 10.1073/pnas.92.24.10924. Proc Natl Acad Sci U S A. 1995. PMID: 7479911 Free PMC article.
Thus, oligopeptides of the same length and composition, but having different conformations, can be incrementally grown from a common precursor, and their relative conformational free energies can be calculated as the difference between the free energies for growing the individual …
Thus, oligopeptides of the same length and composition, but having different conformations, can be incrementally grown from a common precurs …
Solvent entrainment in and flocculation of asphaltenic aggregates probed by small-angle neutron scattering.
Gawrys KL, Blankenship GA, Kilpatrick PK. Gawrys KL, et al. Langmuir. 2006 May 9;22(10):4487-97. doi: 10.1021/la052509j. Langmuir. 2006. PMID: 16649754
Fits to the scattering intensity curves were performed using the Guinier approximation, the Ornstein-Zernike (or Zimm) model, a mass-fractal model, and a polydisperse cylinder model. ...
Fits to the scattering intensity curves were performed using the Guinier approximation, the Ornstein-Zernike (or Zimm) model, a mass- …
Propensity of lignin to associate: light scattering photometry study with native lignins.
Contreras S, Gaspar AR, Guerra A, Lucia LA, Argyropoulos DS. Contreras S, et al. Biomacromolecules. 2008 Dec;9(12):3362-9. doi: 10.1021/bm800673a. Biomacromolecules. 2008. PMID: 18991458
When coupled to additional work using light scattering static measurements and Zimm plots for the same solutions, this effort offers insight into the aggregation and ensuing dissociative events that operate within the lignin macromolecules....
When coupled to additional work using light scattering static measurements and Zimm plots for the same solutions, this effort offers …
Tracer microrheology study of a hydrophobically modified comblike associative polymer.
Abdala AA, Amin S, van Zanten JH, Khan SA. Abdala AA, et al. Langmuir. 2015 Apr 7;31(13):3944-51. doi: 10.1021/la504904n. Epub 2015 Mar 24. Langmuir. 2015. PMID: 25775221
The length scale associated with the elastic to glassy behavior change is obtained from the time-dependent diffusion coefficient. The Zimm-Rouse type scaling is recovered at high frequencies but shows a concentration effect switching from Zimm to more Rouse-like beh …
The length scale associated with the elastic to glassy behavior change is obtained from the time-dependent diffusion coefficient. The Zim …
Effects of mass inoculation on induced oleoresin response in intensively managed loblolly pine.
Klepzig KD, Robison DJ, Fowler G, Minchin PR, Hain FP, Allen HL. Klepzig KD, et al. Tree Physiol. 2005 Jun;25(6):681-8. doi: 10.1093/treephys/25.6.681. Tree Physiol. 2005. PMID: 15805088
Oleoresin flow is an important factor in the resistance of pines to attack by southern pine beetle, Dendroctonus frontalis Zimm., and its associated fungi. Abiotic factors, such as nutrient supply and water relations, have the potential to modify this plant-insect-fungus i …
Oleoresin flow is an important factor in the resistance of pines to attack by southern pine beetle, Dendroctonus frontalis Zimm., and …