Segmental Anisotropy in Strained Elastomers Detected with a Portable NMR Scanner

Distributions of transverse relaxation times for soft-solids measured in strongly inhomogeneous magnetic fields

“…The preparation and microscopic to macroscopic properties correlations of investigated elastomers sample series were already reported on some previous work [8,[10][11][12][34][35][36][37][38]. Proton relaxation times were measured with a BRUKER Minispec spectrometer connected to a bar magnet NMR-MOUSE Ò sensor with a butterfly coil working at 19.2 MHz.…”

“…More and more NMR applications are being proposed and successfully operate in such fields [1]. These techniques and applications include stray-field NMR at high field [2], and surface NMR spectrometers [3,4] and sensors at low field [5][6][7][8] for material testing [8][9][10][11][12], biomedicine [8,13], imaging [14,15] and well logging [16][17][18][19]. Moreover, approaches toward high-resolution ex-situ NMR spectroscopy have been realized [20][21][22][23].…”

“…Moreover, approaches toward high-resolution ex-situ NMR spectroscopy have been realized [20][21][22][23]. In the last years, singlesided NMR with sensors like the NMR-MOUSE presents an important advance in obtaining relevant microscopic information for the characterization of diverse types of materials [6][7][8][9][10][11][12][13]. Among these materials are elastomers with a broad range of important applications [8][9][10][11][12].…”

Microstructure and deformation mechanisms of a solid propellant using 1 H NMR spectroscopy

“…The overall conclusion of the studies is that an increasing tensile strain emphasizes the anisotropy of the network causing a decrease of the relaxation time [27][28][29][30][31]. In addition, the sol fraction interact with network chains and orient according to network deformation [32][33][34].…”

Selective saturation in strongly inhomogeneous magnetic fields

“…For reasons of mobility and nondestructiveness the NMR-MOUSE (mobile universal surface explorer) has been developed [14][15][16][17][18]. Here, the static magnetic field B 0 is generally produced by one or more small permanent magnets with a surface induction less than 1 T and a strong magnetic field gradient on the order of 10 to 20 T/m [19,20].…”