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dc.contributor.authorZhao, Z.-G.*
dc.contributor.authorYang, Q.*
dc.contributor.authorCoates, Philip D.*
dc.contributor.authorWhiteside, Benjamin R.*
dc.contributor.authorKelly, Adrian L.*
dc.contributor.authorHuang, Y.-J.*
dc.contributor.authorWu, P.-P.*
dc.date.accessioned2019-04-25T09:05:27Z
dc.date.available2019-04-25T09:05:27Z
dc.date.issued2018-08-22
dc.identifier.citationZhao Z-G, Yang Q, Coates PD et al (2018) Structure and Property of Microinjection Molded Poly(lactic acid) with High Degree of Long Chain Branching. Industrial and Engineering Chemistry Research. 57(33): 11312-11322.en_US
dc.identifier.urihttp://hdl.handle.net/10454/16981
dc.descriptionYesen_US
dc.description.abstractLong chain branches (LCB) are successfully grafted to linear poly(lactic acid) (PLA) using functional group reactions with pentaerythritol triacrylate (PETA) and tetraethylthiuram disulfide (TETDS). Results show a high branching degree of PLA (∼49.5%) can be effectively obtained with adding only 1 wt % PETA, contributing remarkably to enhancing strain hardening. The density of the nuclei formed during nonisothermal crystallization for LCB-PLA samples is markedly increased contrasted with PLA, resulting in significantly enhancing crystallinity from 13.3% to 41%, the onset crystallization temperature (∼20 °C), and the crystallization rate. Interestingly, compared with mini-injection molding, the elevated wall shear rates (and corresponding shear stresses) prove to be beneficial to the creation of special crystalline morphologies (β-crystal form) and oriented structures under microinjection molding conditions, resulting in the improvement of tensile strength by ∼45 MPa.en_US
dc.description.sponsorshipChinese Scholarship Councilen_US
dc.language.isoenen_US
dc.rights© 2018 ACS. This document is the Accepted Manuscript version of a Published Work that appeared in final form in the I&EC Research, copyright © American Chemical Society after peer-review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.iecr.8b01597.en_US
dc.subjectPolymeren_US
dc.subjectMicroinjection mouldingen_US
dc.titleStructure and Property of Microinjection Molded Poly(lactic acid) with High Degree of Long Chain Branchingen_US
dc.status.refereedYesen_US
dc.date.application2018-07-27
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
dc.identifier.doihttps://doi.org/10.1021/acs.iecr.8b01597
refterms.dateFOA2019-04-25T09:05:59Z


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