Strong Screening Effect of Polyhedral Oligomeric Silsesquioxanes (POSS) Nanoparticles on Hydrogen Bonded Polymer Blends
Abstract
:1. Introduction
2. Experimental Section
2.1. Materials
2.2. PMMA Homopolymer through Living Anionic Polymerization
Polymer | V | Mw | DP | PDI | Equilibrium Constant | |||
---|---|---|---|---|---|---|---|---|
K2 | KB | KA b | KC c | |||||
PVPh a | 100 | 120 | 66 | 1.73 | 21.6 | 66.8 | 10 | 0 |
Phenolic | 84 | 105 | 6 | 2.40 | 23.3 | 52.3 | 20 | 0 |
BPA | 176 | 228 | – | – | 21.0 | 66.8 | 20 | 0 |
PMMA d | 84.9 | 100 | 403 | 1.04 | – | – | – | – |
PMA-POSS d | 826 | 926 | 41 | 1.07 | – | – | – | – |
2.3. PMA-POSS Homopolymer through Living Anionic Polymerization
2.4. Blend Preparations
2.5. Characterization
3. Results and Discussion
3.1. Synthesis of PMA-POSS
3.2. DSC Analyses
3.3. FTIR Spectra of PMMA Homopolymer Blend Systems
Sample (wt%) | Free C=O | Hydrogen-bonded C=O | fb (%) | |||
---|---|---|---|---|---|---|
vf (cm−1) | Af (%) | vb (cm−1) | Ab (%) | |||
PVPh/PMMA | ||||||
0/100 | 1734 | 100 | – | – | – | |
20/80 | 1733 | 92.4 | 1704 | 7.6 | 5.1 | |
40/60 | 1733 | 83.9 | 1704 | 16.1 | 11.3 | |
60/40 | 1732 | 67.2 | 1705 | 32.8 | 24.5 | |
80/20 | 1733 | 57.0 | 1705 | 43.0 | 33.4 | |
Phenolic/PMMA | ||||||
20/80 | 1734 | 84.9 | 1703 | 15.1 | 10.6 | |
40/60 | 1735 | 65.9 | 1703 | 34.1 | 25.6 | |
60/40 | 1733 | 46.8 | 1704 | 53.2 | 43.1 | |
80/20 | 1732 | 26.8 | 1705 | 73.2 | 64.5 | |
BPA/PMMA | ||||||
20/80 | 1734 | 89.9 | 1705 | 10.1 | 6.9 | |
40/60 | 1734 | 69.8 | 1705 | 30.2 | 22.3 | |
60/40 | 1734 | 55.2 | 1705 | 44.8 | 35.1 | |
80/20 | 1733 | 49.2 | 1705 | 50.8 | 40.7 |
3.4. FTIR Spectra of PMMA-POSS Homopolymer Blend Systems
3.5. WAXD Analyses of PMMA-POSS Homopolymer Blend Systems
4. Conclusions
Acknowledgments
Conflicts of Interest
References
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Chiou, C.-W.; Lin, Y.-C.; Wang, L.; Hirano, C.; Suzuki, Y.; Hayakawa, T.; Kuo, S.-W. Strong Screening Effect of Polyhedral Oligomeric Silsesquioxanes (POSS) Nanoparticles on Hydrogen Bonded Polymer Blends. Polymers 2014, 6, 926-948. https://doi.org/10.3390/polym6030926
Chiou C-W, Lin Y-C, Wang L, Hirano C, Suzuki Y, Hayakawa T, Kuo S-W. Strong Screening Effect of Polyhedral Oligomeric Silsesquioxanes (POSS) Nanoparticles on Hydrogen Bonded Polymer Blends. Polymers. 2014; 6(3):926-948. https://doi.org/10.3390/polym6030926
Chicago/Turabian StyleChiou, Chin-Wei, Yung-Chih Lin, Lei Wang, Chiharu Hirano, Yoshinori Suzuki, Teruaki Hayakawa, and Shiao-Wei Kuo. 2014. "Strong Screening Effect of Polyhedral Oligomeric Silsesquioxanes (POSS) Nanoparticles on Hydrogen Bonded Polymer Blends" Polymers 6, no. 3: 926-948. https://doi.org/10.3390/polym6030926