Carbon-13 NMR in Polymer Science by Wallace M. Pasikan

By Wallace M. Pasikan

content material: The research of the constitution and chain dynamics of polysulfones via carbon-13 NMR / F.A. Bovey and R.E. Cais --
Polysaccharide branching and carbon-13 NMR / F.R. Seymour --
A reinvestigation of the constitution of poly(dichlorophenylene oxides) utilizing carbon-13 NMR spectroscopy / John F. Harrod and Patrick Van Gheluwe --
Carbon-13 NMR in natural solids : the potential of polymer characterization / A.N. Garroway, W.B. Moniz, and H.A. Resing --
Carbon-13 NMR reports of version anionic polymerization platforms / S. Bywater and D.J. Worsfold --
Carbon-13 NMR high-resolution characterization of elastomer platforms / Charles J. Carman --
Characterization of carbohydrate polymers via carbon-13 NMR spectroscopy / Arthur S. Perlin and Gordon ok. Hamer --
leisure experiences within the procedure poly(ethyl methacrylate)-chloroform via carbon-13 and proton NMR / Lenas J. Hedlund, Robert M. Riddle, and Wilmer G. Miller --
using carbon-13 NMR to check binding of hormones to version receptor membranes : the opioid peptide enkephalin / Harold C. Jarrell, P. Tancrede, Roxanne Deslauriers, Ian C.P. Smith, and W. Herbert McGregor --
Carbon-13 spin leisure parameters of semicrystalline polymers / D.E. Axelson and L. Mandelkern --
Use of carbon-13 NMR research within the characterization of alternating copolymers ready by means of chemical changes of 1,4-polydienes / R. Lacas, G. Maurice, and J. Prud'homme --
Carbon-13 NMR reports at the cationic polymerization of cyclic ethers / G. Pruckmayr and T.K. Wu --
A comparability of types and version parameters for the translation of carbon-13 rest in universal polymers / Alan Anthony Jones, Gary L. Robinson, and Fredric E. Gerr --
Carbon-13 NMR and polymer stereochemical configuration / James C. Randall.

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Extra resources for Carbon-13 NMR in Polymer Science

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Therefore, l a r g e p o l y ­ saccharides e f f e c t i v e l y c o n t a i n no reducing end groups, and an equal number o f branch-point residues to terminal non-reducing residues. r. s p e c t r a l a n a l y s i s was f i r s t a p p l i e d to dextrans. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1979. 30 C A R B O N - 1 3 N M R I N P O L Y M E R S C I E N C E w i l l be considered independently, without regard to the nature o f the adjacent l i n k e d r e s i d u e s .

S. data show that the s t r u c t u r e o f mannan Y-1842 profoundly d i f f e r s from the above dextran s t r u c t u r e s as t h i s mannan has non-(1+6)-linkages incorporated i n t o the backbone. ). This spectrum was c o n v i n c i n g l y i n t e r p r e t e d by p o s t u l a t i n g p u l l u l a n to be a h i g h l y ordered p o l y s a c c h a r i d e o f the f o l l o w i n g s t r u c t u r e , and assuming -[-(1+4)-a-G-(1+6)-a-G-(1+4)-a-G-] Structure 7 — that those 4-0-substituted α-D-glucopyranosyl residues are i n d i f f e r e n t chemical environments and w i l l have d i f f e r e n t chemical s h i f t s f o r v a r i o u s carbon atom p o s i t i o n s .

R. spectrum. s. r. spectrum, y i e l d any evidence about the r e l a t i v e p o s i t i o n o f i n d i v i d u a l r e s i d u e s w i t h i n a polymer. Fortunately, r e l a x a t i o n data provide c e r t a i n evidence f o r both o f these areas o f u n c e r t a i n t y . r. spectra. For the dextran thes anomeri branchin well r e s o l v e d one from resonance, but the i n t r o d u c t i o branch-poin a l i n e a r p o l y s a c c h a r i d e r e s u l t s i n the c r e a t i o n o f an a d d i t i o n a l terminal r e s i d u e with i t s a s s o c i a t e d anomeric resonance.

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