By Wallace M. Pasikan
content material: The learn of the constitution and chain dynamics of polysulfones by means of 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 experiences of version anionic polymerization structures / 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 okay. Hamer --
rest reports within the process 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 rest parameters of semicrystalline polymers / D.E. Axelson and L. Mandelkern --
Use of carbon-13 NMR research within the characterization of alternating copolymers ready through chemical differences of 1,4-polydienes / R. Lacas, G. Maurice, and J. Prud'homme --
Carbon-13 NMR experiences 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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Additional resources for Carbon-13 NMR in Polymer Science
2. S E Y M O U R Polysaccharide Branching 37 I f the hypothesis s t a t i n g that the resonances o f each r e s i d u e type were independent o f adjacent r e s i d u e s t r u c t u r e s , then the C - l resonance o f the terminal r e s i d u e would be easy to i d e n t i f y by comparing the a d d i t i o n a l branching anomeric resonances o f 2-branching, 3-branching, and 4-branching, thereby i d e n t i f y i n g the c o n s i s t e n t minor resonance. T h i s i s not the case, as a comparison o f the s e r i e s o f dextrans o f d i f f e r e n t branching type demonstrates.
Furthermore, the t o t a l spectrum o f the s y n t h e t i c a l l y branched amyloses was e s s e n t i a l l y a composite o f the amylose resonances p l u s the methyl 3-D-glucopyranoside resonances. Two p o i n t s were o f i n t e r e s t i n t h i s study. m. m. m. (the 4 , 6 - d i - 0 - s u b s t i t u t e d α-D-glucopyranosyl r e s i d u e ) . As was p r e v i o u s l y shown f o r a-(1+3)-linkages f o r dextran, t h i s again i n d i c a t e s that the d i a g n o s t i c resonances are dependent on the r e s i d u e type present, and not on the linkage type.
Due t o the corresponding terminal α-D-gluco pyranosyl residue a s s o c i a t e d with each branch-point r e s i d u e , i t could be expected that each branching type could c o n t r i b u t e twelve (2x6) minor resonances t o the dextran s p e c t r a , and that the "minor" resonances would s t e a d i l y become more intense (compared t o the l i n e a r dextran resonances) as the polymer becomes more h i g h l y branched. m. r e g i o n . m. r e g i o n presents a second complementary s p e c t r a l r e g i o n f o r s t r u c t u r a l a n a l y s i s .
Carbon-13 NMR in Polymer Science by Wallace M. Pasikan