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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c02867
|2 doi
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Guo, Mingwei
|e verfasserin
|4 aut
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|a Role of the Branched PEG-b-PLLA Block Chain in Stereocomplex Crystallization and Crystallization Kinetics for PDLA/MPEG-b-PLLA-g-glucose Blends with Different Architectures
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|c 2022
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 20.12.2022
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|a Date Revised 22.12.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The isothermal crystallization behavior and corresponding morphology evolution of poly(d-lactic acid) (PDLA) blends with PLLA6.7k or MPEG-b-PLLA6.7k-g-glucose with different architectures and different PLLA-grafted copolymer contents were investigated. The formation of stereocomplexes (SCs) in between the chain branched structure of MPEG-b-PLLA6.7k-g-glucose and PDLA chains acting as the physical crosslinking points slows down the motion of PDLA chains, but the SCs could act as a heterogeneous nucleating agent for the late formation of homocrystals (HCs) in the blend system, accelerating the crystallization kinetics of HCs through enhancing the nucleation density. For PDLA/MPEG-b-PLLA6.7k-g-glucose blends, the mobility of SCs in the blend system and the nucleation density of SCs in the blends exhibit oppositional behavior during the isothermal crystallization at a Tc of 130 °C. The evolution of the crystal growth and structure during the isothermal crystallization process by rheometry has revealed the interesting role of the branched chains of MPEG-b-PLLA6.7k-g-glucose in the mechanism of the crystallization in PDLA blends
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|a Journal Article
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|a Zhao, Zhifeng
|e verfasserin
|4 aut
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|a Xie, Zhongyuan
|e verfasserin
|4 aut
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|a Wu, Weixin
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Wenjing
|e verfasserin
|4 aut
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| 700 |
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|a Gao, Qinwei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 38(2022), 50 vom: 20. Dez., Seite 15866-15879
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|x 1520-5827
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|g volume:38
|g year:2022
|g number:50
|g day:20
|g month:12
|g pages:15866-15879
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|u http://dx.doi.org/10.1021/acs.langmuir.2c02867
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