Abstract:The crystallization and II–I phase transition of functionalized polybutene-1 with hydroxyl groups were investigated by differential scanning calorimetry. The results show that the incorporated hydroxyl groups increase the nucleation density but decrease the growth rate in melt crystallization. Interestingly, for the generated tetragonal form II, the presence of polar hydroxyl groups can effectively accelerate the phase transition into the thermodynamically stable modification of trigonal form I, especially wit… Show more
“…[2][3][4] Among all these forms, forms I and II are studied more extensively due to their practical value. [5][6][7][8][9][10][11][12][13] Form I with a hexagonally packed 3/1 helical structure is thermodynamically stable. 4,[14][15][16][17] Form II with molecular chain in a 11/3 helix conformation and tetragonal packing is thermodynamically metastable, which is generally obtained through melt crystallization due to its fast crystallization kinetics.…”
New questions and conjectures are raised on the crystal-crystal phase transition of isotactic polybutene-1 (iPB-1) containing nanofiller in the flow field. In this work, we investigate the phase transition from...
“…[2][3][4] Among all these forms, forms I and II are studied more extensively due to their practical value. [5][6][7][8][9][10][11][12][13] Form I with a hexagonally packed 3/1 helical structure is thermodynamically stable. 4,[14][15][16][17] Form II with molecular chain in a 11/3 helix conformation and tetragonal packing is thermodynamically metastable, which is generally obtained through melt crystallization due to its fast crystallization kinetics.…”
New questions and conjectures are raised on the crystal-crystal phase transition of isotactic polybutene-1 (iPB-1) containing nanofiller in the flow field. In this work, we investigate the phase transition from...
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