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Study on the nano-structure pattern of Poly(L-lactide)/Polyethylene polymer system with different concentrations by the combination of Molecular Dynamics and Dissipative particle dynamics simulations

In this article, the molecular dynamics and dissipative particle dynamics simulation method is adopted to investigate volume ratio (1:9; 3:7; 5:5; 7:3; 9:1), mixing method (blend and copolymer) and chain length effects on the microstructure of poly(L-lactide) (PLLA)/polyethylene (PE) blends. In addition to investigate those effect what we describe above, we also investigate the effect when we compress the system to get the relation between equilibrium structure and microstructure. In order to obtain the information of microstructure in the different condition, we apply the radius of gyration and end-to-end distance to explain the conformation during the transform process. We can observe that equilibrium structures and micro-structures will change when we change the volume fraction, mixture method and length. In the spatial effect, the space played an important role about the equilibrium structures, and we also observe that the mixture method will influence a lot about equilibrium structures and micro-structures.In the aspect of triblock copolymer, the arrangement affect the micro-structures and bridge-loop effect appreciably.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0911107-135355
Date11 September 2007
CreatorsWang, Yao-chun
ContributorsJenn-Sen Lin, Che-Hsin Lin, Jee-Gong Chang, Shin-Pon Ju, Ming-Liang Liao
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0911107-135355
Rightsunrestricted, Copyright information available at source archive

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