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Charut Vichitlimaporn. Molecular Weight distribution (MWD) and sequence length distribution (SLD) of ethylene/1-olefin copolymers : generalized bimodality criteria. Master's Degree(Chemical Engineering). Kasetsart University. Office of the University Library. : Kasetsart University, 2016.
Molecular Weight distribution (MWD) and sequence length distribution (SLD) of ethylene/1-olefin copolymers : generalized bimodality criteria
Name: Charut Vichitlimaporn
Classification :.LCCS: TP1180.P67
LCSH:
Copolymers
LCSH:
Polyolefins
LCSH:
Copolymers
LCSH:
Ethylene
Abstract:
Two single-site-type metallocene catalysts can be combined to produce polymers with well-controlled and broad molecular weight distributions (MWD), sequence length distribution (SLD), and chemical composition distributions (CCD). As polyolefins with unimodal and bimodal microstructural distributions have different mechanical and rheological properties, a criterion to determine whether a system of two single-site-type catalysts produces polymers with unimodal or bimodal distributions is useful for product development and property optimization. In this work, generalized bimodality criteria for both MWD and SLD of ethylene/1-olefin copolymers produced with two metallocene catalysts were developed and represented as a comprehensive three-dimensional map. The proposed criteria were validated with both simulated and previously reported experimental data. The characteristics of simulated MWD and SLD results are in a good agreement with the predictions from the proposed criteria. Therefore, these generalized MWD and SLD bimodality criteria can be used as an efficient tool to predict the type of microstructural distributions of ethylene/1-olefin copolymers produced with a combination of two metallocene catalysts. Moreover, these criteria can be further used for material design and development.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Siripon Anantawaraskul
Role:
Thesis Advisor
Name: Paweena Prapainainar
Role:
Thesis Co-Advisor
Created:
2016
Modified:
2023-05-31
Issued:
2023-05-31
วิทยานิพนธ์/Thesis
application/pdf
URL: https://kasetsart.idm.oclc.org/login?url=https://www.lib.ku.ac.th/KUthesis/2559/charut-vic-all.pdf
CallNumber:
TP1180.P67.C42
eng
Level: Master's Degree
Descipline: Chemical Engineering
Grantor: Kasetsart University
DegreeName: Master of Engineering
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.033941 วินาที
Charut Vichitlimaporn
| Title | Contributor | Type |
|---|---|---|
| Molecular Weight distribution (MWD) and sequence length distribution (SLD) of ethylene/1-olefin copolymers : generalized bimodality criteria
มหาวิทยาลัยเกษตรศาสตร์ Charut Vichitlimaporn | Siripon Anantawaraskul Paweena Prapainainar | วิทยานิพนธ์/Thesis |
Siripon Anantawaraskul
Paweena Prapainainar