Integrated analysis of solid-state NMR spectra and nuclear magnetic relaxation times for the phenol formaldehyde (PF) resin impregnation process into soft wood

ABSTRACTThe thermosetting mechanism of an organosilicon polymer containing carborane has been studied utilizing the 13and 29Si solid-state NMR method. The polymer having C≡C bonds in the main chain and CH═CH2, Si-H bonds, and carborane in the bulky side chain, shows a very highly thermal stability in air by curing. From 13C and 29Si NMR spectra of the polymer, it was found that the intermolecular cross-linking reactions of the polymer was due to (1) the diene reaction between Ph-C≡C and C≡C and (2) the addition reaction between side chain terminal and Ph-C≡C and between CH═CH2 and Si–H, and a very highly thermal stable structure is formed.

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Variable temperature solid-state NMR spectral and relaxation analyses of the impregnation of polyethylene glycol (PEG) into coniferous wood

RSC Advances ◽

10.1039/c9ra01848d ◽

2019 ◽

Vol 9 (27) ◽

pp. 15657-15667 ◽

Cited By ~ 3

Author(s):

Masakazu Nishida ◽

Tomoko Tanaka ◽

Tsunehisa Miki ◽

Ichinori Shigematsu ◽

Kozo Kanayama

Keyword(s):

Polyethylene Glycol ◽

Solid State ◽

Solid State Nmr ◽

Nmr Spectra ◽

Variable Temperature ◽

Relaxation Times ◽

Japanese Cypress ◽

Coniferous Wood

To investigate the behaviours of polyethylene glycol (PEG) and its interaction with biomass constituents in coniferous wood (Japanese cypress), variable temperature solid-state NMR spectra and relaxation times were measured from 20–80 °C.

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Solid state NMR spectra of rapidly quenched superionic glasses composed of two lithium ortho-oxosalts

Solid State Ionics ◽

10.1016/0167-2738(96)00190-7 ◽

1996 ◽

Vol 86-88 ◽

pp. 535-538 ◽

Cited By ~ 2

Author(s):

Masanari Takahashi ◽

Hiroshi Toyuki ◽

Masahiro Tatsumisago ◽

Tsutomu Minami

Keyword(s):

Solid State ◽

Solid State Nmr ◽

Nmr Spectra

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Solid State NMR Spectra of Tall Fescue Seed

Neotyphodium/Grass Interactions ◽

10.1007/978-1-4899-0271-9_45 ◽

1997 ◽

pp. 255-256 ◽

Cited By ~ 1

Author(s):

J. F. Green ◽

K. D. Gwinn ◽

G. W. Kabalka ◽

C. L. Anderson

Keyword(s):

Solid State ◽

Tall Fescue ◽

Solid State Nmr ◽

Nmr Spectra

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Combining solid-state NMR spectroscopy with first-principles calculations – a guide to NMR crystallography

Chemical Communications ◽

10.1039/c6cc02542k ◽

2016 ◽

Vol 52 (45) ◽

pp. 7186-7204 ◽

Cited By ~ 131

Author(s):

Sharon E. Ashbrook ◽

David McKay

Keyword(s):

Solid State ◽

Nmr Spectroscopy ◽

Dft Calculations ◽

First Principles ◽

Solid State Nmr ◽

Nmr Spectra ◽

First Principles Calculations ◽

Recent Developments ◽

Future Potential ◽

Nmr Crystallography

DFT calculations are an important tool in assigning and interpreting NMR spectra of solids: we discuss recent developments and their future potential in the context of NMR crystallography.

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