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2-Vinylpyridine-co-N-vinyl-2-pyrrolidone and 4-vinylpyridine-co-N-vinyl-2-pyrrolidone copolymers: synthesis and reactivity ratios

✍ Scribed by Nicolás Gatica; Ligia Gargallo; Deodato Radić

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
248 KB
Volume
45
Category
Article
ISSN
0959-8103

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✦ Synopsis

Copolymers containing 2-vinylpyridine (2VPy) and 4-vinylpyridine (4VPy) with N-vinyl-2-pyrrolidone (VP) (2VPy-co-VP and 4VPy-co-VP, respectively) were synthesized and characterized. Copolymers with di †erent compositions were obtained. The reactivity ratios were estimated by using the classical FinemannÈRoss and Kelen Tu dos linear procedures. These parameters were also estimated by using a computer program based on a non-linear minimization algorithm (NLMA), starting from the values of and obtained by the above r 1 r 2 linear procedures. Random copolymers with zones containing vinylpyridine blocks were obtained.

1998 SCI.

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