Isothermal crystallization behavior of poly(L-lactide) in poly(L-lactide)-block-poly(ethylene glycol) diblock copolymers

2006 ◽  
Vol 44 (17) ◽  
pp. 2438-2448 ◽  
Author(s):  
Ching-I Huang ◽  
Shang-Hsiu Tsai ◽  
Chih-Ming Chen
Keyword(s):  
Ethylene Glycol ◽  
Isothermal Crystallization ◽  
Crystallization Behavior ◽  
Diblock Copolymers ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

scholarly journals Non-Isothermal Crystallization Kinetics of Poly(Ethylene Glycol)–Poly(l-Lactide) Diblock Copolymer and Poly(Ethylene Glycol) Homopolymer via Fast-Scan Chip-Calorimeter

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1156
Author(s):  
Dejia Chen ◽  
Lisha Lei ◽  
Meishuai Zou ◽  
Xiaodong Li
Keyword(s):  
Ethylene Glycol ◽  
Heterogeneous Nucleation ◽  
Isothermal Crystallization ◽  
Crystallization Process ◽  
Poly Ethylene Glycol ◽  
Ozawa Method ◽  
Isothermal Crystallization Kinetics ◽  
Fast Cooling ◽  
Poly Ethylene ◽  
Kinetics Of

The non-isothermal crystallization kinetics of double-crystallizable poly(ethylene glycol)–poly(l-lactide) diblock copolymer (PEG-PLLA) and poly(ethylene glycol) homopolymer (PEG) were studied using the fast cooling rate provided by a Fast-Scan Chip-Calorimeter (FSC). The experimental data were analyzed by the Ozawa method and the Kissinger equation. Additionally, the total crystallization rate was represented by crystallization half time t1/2. The Ozawa method is a perfect success because secondary crystallization is inhibited by using fast cooling rate. The first crystallized PLLA block provides nucleation sites for the crystallization of PEG block and thus promotes the crystallization of the PEG block, which can be regarded as heterogeneous nucleation to a certain extent, while the method of the PEG block and PLLA block crystallized together corresponds to a one-dimensional growth, which reflects that there is a certain separation between the crystallization regions of the PLLA block and PEG block. Although crystallization of the PLLA block provides heterogeneous nucleation conditions for PEG block to a certain extent, it does not shorten the time of the whole crystallization process because of the complexity of the whole crystallization process including nucleation and growth.

Microencapsulation of cytarabine using poly(ethylene glycol)–poly(ε-caprolactone) diblock copolymers as surfactant agents

2010 ◽  
Vol 36 (4) ◽  
pp. 456-469 ◽  
Author(s):  
Roudayna Diab ◽  
Misara Hamoudeh ◽  
Olivier Boyron ◽  
Abdelhamid Elaissari ◽  
Hatem Fessi
Keyword(s):  
Ethylene Glycol ◽  
Diblock Copolymers ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Controlling the morphology of glyco-nanoparticles in water using block copolymer mixtures: the effect on cellular uptake

2015 ◽  
Vol 6 (45) ◽  
pp. 7812-7820 ◽  
Author(s):  
Aydan Dag ◽  
Hongxu Lu ◽  
Martina Stenzel
Keyword(s):  
Block Copolymer ◽  
Ethylene Glycol ◽  
Cellular Uptake ◽  
Methyl Ether ◽  
Butyl Acrylate ◽  
Diblock Copolymers ◽  
Ethyl Acrylate ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Poly[(2-(α-d-mannosyloxy)ethyl acrylate)-block-(n-butyl acrylate)], P(ManA-b-BA), and poly[poly(ethylene glycol) methyl ether acrylate]-block-(n-butyl acrylate)], P(OEGMEA-b-BA) diblock copolymers were mixed at various ratios to generate self-assembled structures of different morphologies.

The effect of poly(ethylene glycol)–poly(d,l-lactic acid) diblock copolymers on peptide acylation

2002 ◽  
Vol 80 (1-3) ◽  
pp. 157-168 ◽  
Author(s):  
Andrea Lucke ◽  
Elisabetta Fustella ◽  
Jörg Teßmar ◽  
Andrea Gazzaniga ◽  
Achim Göpferich
Keyword(s):  
Lactic Acid ◽  
Ethylene Glycol ◽  
Diblock Copolymers ◽  
Poly Ethylene Glycol ◽  
Peptide Acylation ◽  
Poly Ethylene
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