نتایج جستجو برای: isotactic poly 1
تعداد نتایج: 2815100 فیلتر نتایج به سال:
Plasticizer effect on miscibility of isotactic poly(methyl methacrylate)-poly(vinyl chloride) blends
The physicochemical properties of polymers can be modified by spatial configuration. Here, dielectric spectroscopy (DS) was employed to investigate the effect tacticity on glass-transition dynamics confined polymer films. We have also carried out relaxation studies at ambient and elevated pressure conditions. High-pressure measurements provide information sensitivity density changes, which help...
The impact of a small amount polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (SEBS) on the thermomechanical and electrical properties blends comprising low-density polyethylene (LDPE) isotactic polypropylene (PP) is investigated. SEBS found to assemble at PP:LDPE interface as well within isolated PP domains. addition 10 wt% significantly increases storage modulus between melting temperat...
In fluorescence emission spectra of poly(vinylcarbazole) (PVK), two types of excimers are observed, the fully and the partially overlapped excimers, namely, excimers and exciplexes. In this work, we investigated the structural changes induced by the transition between electronic levels S(0) and S(1). Furthermore, the widely used assumption of similar potential energy surfaces in the S(0) and S(...
Related Articles Spatial distribution of intra-molecular water and polymeric components in polyelectrolyte dendrimers revealed by small angle scattering investigations J. Chem. Phys. 135, 144903 (2011) Thermoreversible gelation of isotactic-rich poly(N-isopropylacrylamide) in water J. Chem. Phys. 135, 114903 (2011) Comparison of Brownian dynamics algorithms with hydrodynamic interaction J. Chem...
Co-crystallization of polymers with different configurations/tacticities provides access to materials with enhanced performance. The stereocomplexation of isotactic poly(L-lactide) and poly(D-lactide) has led to improved properties compared with each homochiral material. Herein, we report the preparation of stereocomplex micelles from a mixture of poly(L-lactide)-b-poly(acrylic acid) and poly(D...
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