Dynamics in Poly(n-alkyl methacrylates): A Neutron Scattering, Calorimetric, and Dielectric Study
نویسندگان
چکیده
منابع مشابه
Influence of solvent on poly(2-(dimethylamino)ethyl methacrylate) dynamics in polymer-concentrated mixtures: a combined neutron scattering, dielectric spectroscopy and calorimetric study
We have investigated the dynamical processes –α-relaxation, local motions of the side-groups and methyl group rotations– in poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) in the dry state and in mixtures (at 70wt% polymer concentration) with tetrahydrofuran (THF) and water, to address the question how these polymer motions are affected by plasticizers interacting in different ways with the...
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S. Mitra,† Binoj Nair,‡ T. Pradeep,*,‡,⊥ P. S. Goyal,§ and R. Mukhopadhyay*,†,| Solid State Physics DiVision, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India, Department of Chemistry and Regional Sophisticated Instrumentation Centre, Indian Institute of Technology, Madras 600 036, India, and Inter-UniVersity Consortium for DAE facilities, BARC, Mumbai 400 085, India ReceiVed: Dece...
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امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
Monomer Dynamics in Sds Micellar Solution: Quasielastic Neutron Scattering Study
Monomer dynamics in sodium dodecyl sulfate (SDS) micellar solution at room temperature as studied by quasielastic neutron scattering (QENS) technique is reported here. The elastic incoherent structure factor (EISF) obtained from the analysis of QENS data suggests that the SDS chain performs uniaxial rotational diffusion along the long molecular axis. The rotation diffusion coefficient is found ...
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ژورنال
عنوان ژورنال: Macromolecules
سال: 2010
ISSN: 0024-9297,1520-5835
DOI: 10.1021/ma902833h