Premium
Studies on the influence of molecular weight and isotacticity of polypropylene on the formation of mesomorphic phase
Author(s) -
Singh Gurmeet,
Kaur Sukhdeep,
Kothari Ajay V.,
Naik Dhananjay G.,
Vyas Priyanshu B.,
Gupta Virendra K.
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29927
Subject(s) - tacticity , materials science , polypropylene , phase (matter) , polymer chemistry , quenching (fluorescence) , fourier transform infrared spectroscopy , chemical engineering , chemistry , composite material , polymer , organic chemistry , polymerization , optics , engineering , physics , fluorescence
Polypropylene (PP) blends with various molecular weight and isotacticity were prepared through solution blending and subjected to rapid melt quenching. Structural changes in the PP matrix during mesomorphic phase formation were measured by FTIR spectroscopy and wide‐angle X‐ray diffraction measurements. The blends with different molecular weight and isotacticity provided the pathway to understand their influence on mesomorphic phase formation. It is observed that low molecular weight PP with low isotacticity forms mesomorphic phase, whereas high molecular weight and low isotactic PP does not lead to the formation of mesomorphic phase. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009