Journal
GELS
Volume 7, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/gels7030099
Keywords
syndiotactic polypropylene; isotactic polypropylene; gel; melt
Categories
Funding
- Japan Society for the Promotion of Science (JSPS: KAKENHI), Japan [19H00831, 19K22067]
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This study aims to understand the mechanical relationship between PP gels and solid PPs without solvent, finding mechanical similarities between molten PPs and PP gels. Gelation of sPP and iPP was observed when dissolved in tetralin. Interestingly, the storage modulus of sPP gel was higher than that of iPP gel at low PP concentration.
This study aims to understand the fundamental mechanical relationship between polypropylene (PP)-gels and solid PPs without solvent through mechanical and thermal analyses, by which the mechanical similarities between molten PPs and PP gels were found, leading to the reliable estimate of the mechanical properties of semi-crystalline gels. The gelation of syndiotactic and isotactic polypropylenes (sPP and iPP) was found when PPs were dissolved in 1,2,3,4-tetrahydronaphthalene (tetralin). Interestingly, it was found that the storage modulus of sPP-gel became higher than that of iPP-gel at low PP concentration (
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