MOLEKULYARNAYA PODVIZHNOST' I PROCESSY PROTONNOY MAGNITNOY RELAKSACII V SISTEME POLIMER - VODA
Authors:
1.
Volga State Technological University
2.
Kazan National Research Technological University
3.
KNRTU
Type:
Article
eLocation:
Status:
Published
Received:
20.04.2023
Accepted:
01.08.2025
Published:
01.08.2025
Subject area:
UDC 541.645
Language:
Russian
Keywords:
полимеры, ядерная магнитная релаксация, polymers, nuclear magnetic relaxation
Abstract (English):
The processes of proton magnetic relaxation in hydrated polymers were studied. It is established that in the presence of water spin-lattice relaxation in rigid-chain polymers that do not contain moving side substituents (for example, aromatic polyamides), is carried out mainly through a phase of sorbed water molecules which act as additional relaxation. For hydrated polysaccharides containing movable oxymethylene group, and flexible-chain aliphatic polyamides ( example capron) a significant contribution to the processes of spin-lattice relaxation make molecular motion activated rassteklovkoj their amorphous phase, which gave the opportunity for these polymers to register, respectively, the - and the-relaxation transitions .
The processes of proton magnetic relaxation in hydrated polymers were studied. It is established that in the presence of water spin-lattice relaxation in rigid-chain polymers that do not contain moving side substituents (for example, aromatic polyamides), is carried out mainly through a phase of sorbed water molecules which act as additional relaxation. For hydrated polysaccharides containing movable oxymethylene group, and flexible-chain aliphatic polyamides ( example capron) a significant contribution to the processes of spin-lattice relaxation make molecular motion activated rassteklovkoj their amorphous phase, which gave the opportunity for these polymers to register, respectively, the - and the-relaxation transitions .
Keywords:
полимеры, ядерная магнитная релаксация, polymers, nuclear magnetic relaxation
полимеры, ядерная магнитная релаксация, polymers, nuclear magnetic relaxation
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