ISSN:
1042-7147
Keywords:
molecular reinforcement
;
rigid cross-shaped multipodes
;
structure
;
solubility
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Cross-like rigid multipodes consisting of a spyro center unit and arms containing one or two phenyl units designed for molecular reinforcement effects are considered. The expectation based on theoretical considerations was that such multipodes would display an enhanced solubility both in low molar mass solvents and in polymer matrices. The shape, structure formation in the condensed state, dynamic properties, solubility and the effect of the multipodes on the dynamics of the polymer matrix were investigated. The main results are that the peculiar shape of such multipodes does not prevent a dense packing and crystallization, that the solubility is enhanced by two orders of magnitude compared with linear rigid molecules and that the presence of such multipodes in a polymer matrix composed of flexible chain molecules affects the matrix dynamics.
Additional Material:
11 Ill.
Type of Medium:
Electronic Resource
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