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Properties of solution grown crystals of isotactic propylene/butene-1 copolymers

โœ Scribed by P. Cavallo; E. Martuscelli; M. Pracella


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
743 KB
Volume
18
Category
Article
ISSN
0032-3861

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๐Ÿ“œ SIMILAR VOLUMES


Crystal structure of isotactic poly(3 me
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Several works have appeared in recent years on the structure of (poly)3MB1 but showing remarkable divergence concerning the crystal lattice of this polymer. Particularly, in a paper by Huguet the structure is interpreted on the basis of a tetragonal lattice, which is here shown to be unacceptable.

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Solution properties of a propylene-tetrafluoroethylene 0aTFE) copolymer were studied in a thermodynamically good solvent (tetrahydrofuran, THF) and in poor solvents (n-butyl acetate, methyl isobutyl ketone). Mark-Houwink relations were determined for the copolymer in particular solvents and unpertur

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## Abstract A series of novel hexeneโ€1โ€“propylene random copolymers with isotactic sequence of propylene was synthesized with a MgCl~2~โ€supported Cr(acac)~3~ catalyst. The molecular weight distribution of copolymers and homopolymers was considerably narrower than that of typical polyolefins produced