Abstract
Radical melt grafting reactions between isotactic polybutene-1 (iPB-1) and maleic anhydride (MAH) were performed with different comonomers including styrene (St), alpha methyl styrene (AMS), and 1-decene in a Torque Rheometer. The reaction mechanism of comonomer/MAH melt grafting on iPB-1 was investigated by Fourier transform infrared spectroscopy (FTIR), high temperature gel permeation chromatography (HT-GPC), melt flow rate (MFR), and gel content test. The results showed that MAH grafted onto iPB-1 after degradation of macromolecular chains without comonomers. In contrast, in the presence of comonomers, intermediates that could graft on iPB-1 main chains before its degradation were obtained, so the three comonomers were able to suppress the degradation thus increasing the grafting degree of MAH. The intermediates could be 1-decene-co-MAH or electron transfer complex (CTC) while St or AMS was added. Moreover, AMS and 1-decene increased the molecular weight and polydispersity of iPB-1 because macroradicals tended to have coupling termination.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
