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Your search keyword '"Di Lorenzo, Maria Laura"' showing total 14 results
Start Over Author "Di Lorenzo, Maria Laura" Topic poly(lactic acid)
14 results on '"Di Lorenzo, Maria Laura"'

3. Melting of alpha'- and alpha-crystals of poly(lactic acid)

Author

Di Lorenzo, Maria Laura and Androsch, René

Subjects
Enthalpy, Poly(lactic acid), Melting, Calorimetry, Crystal polymorphism
Abstract

The influence of chain structure on thermal stability of ?'-crystals of poly(lactic acid) (PLA) with high L-lactic acid content (96-100 %) is detailed in this contribution. ?'-crystals of PLA grow at temperatures below 120 °C, and spontaneously transform into stable ?-modification during heating. Using conventional differential scanning calorimetry (DSC) and fast scanning chip calorimetry (FSC), a wide range of scanning rates, between about 10-1 and 102 K s-1 could be tested. It was found that reorganization of disordered ?'-crystals into stable ?-crystals can be suppressed by fast heating. The critical heating rate needed to completely melt ?'-crystals and to avoid formation of ?-crystals on continuation of heating varies with the chain composition, and decreases upon increase of the D-lactic acid content in the PLA chain.

Published
2016
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4. Crystallization Kinetics of Blends of Two Poly(lactic acid) Grades with Diverse Stereoregularity and Molar Mass.

Author

Di Lorenzo, Maria Laura and Androsch, René

Subjects
*CRYSTALLIZATION kinetics, *POLYLACTIC acid, *MOLAR mass, *GLASS transitions, *DISCONTINUOUS precipitation, *CRYSTAL growth
Abstract

The crystallization kinetics of binary blends of two poly(lactic acid) grades is detailed in this contribution. A poly(l-lactic acid) (PLLA) with a molar mass of around 120 kDa and containing 4% of D-isomers was blended by solution mixing with a PLLA of high stereoregularity and molar mass of 4 kDa. The blends are homogeneous in the melt and display a single, composition-dependent glass transition. Increasing concentration of the highly stereo-regular low-molar-mass polymer accelerates crystallization due to both faster nucleation and crystal growth. PLLA chains of the low-molar mass component start to crystallize at higher temperature than those of the high-molar mass component, acting as nuclei for the subsequent crystal growth that involves both species. [ABSTRACT FROM AUTHOR]

Published
2018
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5. Melting of α'- and α-Crystals of Poly(lactic acid).

Author

Di Lorenzo, Maria Laura and Androsch, René

Subjects
POLYLACTIC acid, MELTING, PHASE transitions, LACTATES, THERMAL stability
Abstract

The influence of chain structure on thermal stability of α'-crystals of poly(lactic acid) (PLA) with high L-lactic acid content (96-100 %) is detailed in this contribution. α'-crystals of PLA grow at temperatures below 120 °C, and spontaneously transform into stable α-modification during heating. Using conventional differential scanning calorimetry (DSC) and fast scanning chip calorimetry (FSC), a wide range of scanning rates, between about 10-1 and 102 K s-1 could be tested. It was found that reorganization of disordered α'-crystals into stable α'-crystals can be suppressed by fast heating. The critical heating rate needed to completely melt α'-crystals and to avoid formation of α-crystals on continuation of heating varies with the chain composition, and decreases upon increase of the D-lactic acid content in the PLA chain. [ABSTRACT FROM AUTHOR]

Published
2016
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6. Quiescent Crystallization of Poly(Lactic Acid) and Its Copolymers-Based Materials

Author

Tsuji, Hideto, Abe, Akihiro, Editorial Board Member, Albertsson, Ann-Christine, Editorial Board Member, Coates, Geoffrey W, Editorial Board Member, Genzer, Jan, Editorial Board Member, Kobayashi, Shiro, Editorial Board Member, Lee, Kwang-Sup, Editorial Board Member, Leibler, Ludwik, Editorial Board Member, Long, Timothy E., Editorial Board Member, Möller, Martin, Editorial Board Member, Okay, Oguz, Editorial Board Member, Percec, Virgil, Editorial Board Member, Tang, Ben Zhong, Editorial Board Member, Terentjev, Eugene M., Editorial Board Member, Theato, Patrick, Editorial Board Member, Vicent, Maria J., Editorial Board Member, Voit, Brigitte, Editorial Board Member, Wiesner, Ulrich, Editorial Board Member, Zhang, Xi, Editorial Board Member, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2019
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7. Processing of Poly(lactic Acid)

Author

Kühnert, Ines, Spörer, Yvonne, Brünig, Harald, Tran, Nguyen Hoai An, Rudolph, Natalie, Abe, Akihiro, Series Editor, Albertsson, Ann-Christine, Series Editor, Coates, Geoffrey W, Series Editor, Genzer, Jan, Series Editor, Kobayashi, Shiro, Series Editor, Lee, Kwang-Sup, Series Editor, Leibler, Ludwik, Series Editor, Long, Timothy E., Series Editor, Möller, Martin, Series Editor, Okay, Oguz, Series Editor, Percec, Virgil, Series Editor, Tang, Ben Zhong, Series Editor, Terentjev, Eugene M., Series Editor, Theato, Patrick, Series Editor, Vicent, Maria J., Series Editor, Voit, Brigitte, Series Editor, Wiesner, Ulrich, Series Editor, Zhang, Xi, Series Editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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8. Poly(lactic acid)-Based Materials for Automotive Applications

Author

Bouzouita, Amani, Notta-Cuvier, Delphine, Raquez, Jean-Marie, Lauro, Franck, Dubois, Philippe, Abe, Akihiro, Series Editor, Albertsson, Ann-Christine, Series Editor, Coates, Geoffrey W, Series Editor, Genzer, Jan, Series Editor, Kobayashi, Shiro, Series Editor, Lee, Kwang-Sup, Series Editor, Leibler, Ludwik, Series Editor, Long, Timothy E., Series Editor, Möller, Martin, Series Editor, Okay, Oguz, Series Editor, Percec, Virgil, Series Editor, Tang, Ben Zhong, Series Editor, Terentjev, Eugene M., Series Editor, Theato, Patrick, Series Editor, Vicent, Maria J., Series Editor, Voit, Brigitte, Series Editor, Wiesner, Ulrich, Series Editor, Zhang, Xi, Series Editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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9. Applications of Poly(lactic Acid) in Commodities and Specialties

Author

Malinconico, Mario, Vink, Erwin T. H., Cain, Andrea, Abe, Akihiro, Series Editor, Albertsson, Ann-Christine, Series Editor, Coates, Geoffrey W, Series Editor, Genzer, Jan, Series Editor, Kobayashi, Shiro, Series Editor, Lee, Kwang-Sup, Series Editor, Leibler, Ludwik, Series Editor, Long, Timothy E., Series Editor, Möller, Martin, Series Editor, Okay, Oguz, Series Editor, Percec, Virgil, Series Editor, Tang, Ben Zhong, Series Editor, Terentjev, Eugene M., Series Editor, Theato, Patrick, Series Editor, Vicent, Maria J., Series Editor, Voit, Brigitte, Series Editor, Wiesner, Ulrich, Series Editor, Zhang, Xi, Series Editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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10. Poly(lactic acid) Controlled Drug Delivery

Author

Li, Jiannan, Ding, Jianxun, Liu, Tongjun, Liu, Jessica F., Yan, Lesan, Chen, Xuesi, Abe, Akihiro, Series Editor, Albertsson, Ann-Christine, Series Editor, Coates, Geoffrey W, Series Editor, Genzer, Jan, Series Editor, Kobayashi, Shiro, Series Editor, Lee, Kwang-Sup, Series Editor, Leibler, Ludwik, Series Editor, Long, Timothy E., Series Editor, Möller, Martin, Series Editor, Okay, Oguz, Series Editor, Percec, Virgil, Series Editor, Tang, Ben Zhong, Series Editor, Terentjev, Eugene M., Series Editor, Theato, Patrick, Series Editor, Vicent, Maria J., Series Editor, Voit, Brigitte, Series Editor, Wiesner, Ulrich, Series Editor, Zhang, Xi, Series Editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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11. Catalytic Systems for the Production of Poly(lactic acid)

Author

Byers, Jeffery A., Biernesser, Ashley B., Delle Chiaie, Kayla R., Kaur, Aman, Kehl, Jeffrey A., Abe, Akihiro, Series editor, Albertsson, Ann-Christine, Series editor, Coates, Geoffrey W, Series editor, Genzer, Jan, Series editor, Kobayashi, Shiro, Series editor, Lee, Kwang-Sup, Series editor, Leibler, Ludwik, Series editor, Long, Timothy E., Series editor, Möller, Martin, Series editor, Okay, Oguz, Series editor, Percec, Virgil, Series editor, Tang, Ben Zhong, Series editor, Terentjev, Eugene M., Series editor, Theato, Patrick, Series editor, Vicent, Maria J., Series editor, Voit, Brigitte, Series editor, Wiesner, Ulrich, Series editor, Zhang, Xi, Series editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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12. Present Situation and Future Perspectives of Poly(lactic acid)

Author

Masutani, Kazunari, Kimura, Yoshiharu, Abe, Akihiro, Series editor, Albertsson, Ann-Christine, Series editor, Coates, Geoffrey W, Series editor, Genzer, Jan, Series editor, Kobayashi, Shiro, Series editor, Lee, Kwang-Sup, Series editor, Leibler, Ludwik, Series editor, Long, Timothy E., Series editor, Möller, Martin, Series editor, Okay, Oguz, Series editor, Percec, Virgil, Series editor, Tang, Ben Zhong, Series editor, Terentjev, Eugene M., Series editor, Theato, Patrick, Series editor, Vicent, Maria J., Series editor, Voit, Brigitte, Series editor, Wiesner, Ulrich, Series editor, Zhang, Xi, Series editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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13. Rheology, Mechanical Properties, and Barrier Properties of Poly(lactic acid)

Author

Domenek, Sandra, Fernandes-Nassar, Samira, Ducruet, Violette, Abe, Akihiro, Series editor, Albertsson, Ann-Christine, Series editor, Coates, Geoffrey W, Series editor, Genzer, Jan, Series editor, Kobayashi, Shiro, Series editor, Lee, Kwang-Sup, Series editor, Leibler, Ludwik, Series editor, Long, Timothy E., Series editor, Möller, Martin, Series editor, Okay, Oguz, Series editor, Percec, Virgil, Series editor, Tang, Ben Zhong, Series editor, Terentjev, Eugene M., Series editor, Theato, Patrick, Series editor, Vicent, Maria J., Series editor, Voit, Brigitte, Series editor, Wiesner, Ulrich, Series editor, Zhang, Xi, Series editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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14. Crystal Polymorphism and Morphology of Polylactides

Author

Lotz, Bernard, Abe, Akihiro, Series editor, Albertsson, Ann-Christine, Series editor, Coates, Geoffrey W, Series editor, Genzer, Jan, Series editor, Kobayashi, Shiro, Series editor, Lee, Kwang-Sup, Series editor, Leibler, Ludwik, Series editor, Long, Timothy E., Series editor, Möller, Martin, Series editor, Okay, Oguz, Series editor, Percec, Virgil, Series editor, Tang, Ben Zhong, Series editor, Terentjev, Eugene M., Series editor, Theato, Patrick, Series editor, Vicent, Maria J., Series editor, Voit, Brigitte, Series editor, Wiesner, Ulrich, Series editor, Zhang, Xi, Series editor, Di Lorenzo, Maria Laura, editor, and Androsch, René, editor

Published
2018
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