Molecular weight kinetics and chain scission models for dextran polymers during ultrasonic degradation

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Molecular weight kinetics and chain scission models for dextran polymers during ultrasonic degradation

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作者：Yuanyuan Pu^a ; ^b ; ^{yuanyuan.pu@ucdconnect.ie" class="auth_mail" title="E-mail the corresponding author} ; Qingsong Zou^a ; ^b ; ^{Qingsong.Zou@ul.ie" class="auth_mail" title="E-mail the corresponding author} ; Dianzhi Hou^a ; ^b ; ^{xiaozhihou90@126.com" class="auth_mail" title="E-mail the corresponding author} ; Yiping Zhang^a ; ^b ; ^{feyzhang1989@mail.scut.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Shan Chen^a ; ^{chenshan@gxu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
关键词：IMW ; initial molecular weights ; Mw ; weight-average molecular weight ; D value ; polydispersity index ; HPGPC ; High Performance Gel Permeation Chromatography
刊名：Carbohydrate Polymers
出版年：2017
出版时间：20 January 2017
年：2017
卷：156
期：Complete
页码：71-76
全文大小：1223 K

文摘

•: Ultrasonic degradation leads to a more homologous dextran solution with lower Mw.
•: Malhotra model describes the molecular weight kinetics of all dextrans adequately.
•: Chain scission mechanism of dextran follows the midpoint scission model (R² > 0.99).

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