SOLID STATE HIGH RESOLUTION NMR STUDY OF THE MOLECULAR MOTION AND COMPATIBILITY OF AB-CROSSLINKED POLYMER BASED ON PPU/PS

Chinese Journal of Magnetic Resonance ›› 1993, Vol. 10 ›› Issue (2): 109-116.

SOLID STATE HIGH RESOLUTION NMR STUDY OF THE MOLECULAR MOTION AND COMPATIBILITY OF AB-CROSSLINKED POLYMER BASED ON PPU/PS

Jia Mingchun¹, Shen Lianfang¹, Qian Baogong¹, Yao Shuren²

1. Wuhan Institute of Physics, The Chinese Academy of Sciences, Wuhan 430071;
2. The Navel Academy of Engineering, Wuhan 430033

Received:1992-03-09 Revised:1992-06-19 Published:1993-06-05 Online:2018-01-20
Supported by:
The project was supported by the National Natural science Foundation of China

Abstract

Abstract: The ¹³C T₁s of side-CH₃ group in PPU/PS, AB-crosslinked polymer were measured by using high resolution solid state NMR technique. The motion of side-CH₃ group in this system was analyzed by means of the average spectral density functions of internal rotation. The results showed that the motion of side-CH₃ group of PPU in PPU/PS ABCPs depends on the content of PS. There is a transition in-CH₃ motion when the phase is reversed. The motion of-CH₃ group is related closely to the macroscopic properties of the ABCP. The measurements of ¹H T_lρ were also carried out.

Key words: Spin-lattice relaxation, AB-crosslinked polymer, Molecular motion, Compatibility

Jia Mingchun, Shen Lianfang, Qian Baogong, Yao Shuren. SOLID STATE HIGH RESOLUTION NMR STUDY OF THE MOLECULAR MOTION AND COMPATIBILITY OF AB-CROSSLINKED POLYMER BASED ON PPU/PS[J]. Chinese Journal of Magnetic Resonance, 1993, 10(2): 109-116.

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SOLID STATE HIGH RESOLUTION NMR STUDY OF THE MOLECULAR MOTION AND COMPATIBILITY OF AB-CROSSLINKED POLYMER BASED ON PPU/PS

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