Reactions at polymer-polymer interfaces for blend compatibilization

Hyun K. Jeon, Bongjin Moon, Thomas R Hoye, Chris Macosko

Research output: Contribution to conferencePaper

Abstract

Competitive reaction of phthalic anhydride end- and mid-functional PMMAs with amine end-functional PS (PS-NH2) was conducted to measure the coupling rate ratio, kb/kg, for block and graft copolymers formation. The functional PMMAs were fluorescently labeled with 7-nitrobenz-2-oxa-1,3-diazole (NBD) and anthracene for end and mid, respectively. We measured conversions to block and graft copolymers at characteristic excitation and emission wavelengths for NBD and anthracene using a fluorescence detector coupled with GPC. Mid-functional PMMA experiences more steric hindrance due to the chain giving kb/kg of ∼ 3 in solution. For reaction at a static interface, kb/kg increased to ∼ 5 because of the preference of chain ends to locate at the interface at equilibrium. However, kb/kg for blends prepared in a mixer was almost same as that for the solution reaction. The external flow is considered to be the main cause for this result.

Original languageEnglish (US)
Pages3784-3788
Number of pages5
StatePublished - Oct 14 2003
Event61st Annual Technical Conference ANTEC 2003 - Nashville, TN, United States
Duration: May 4 2003May 8 2003

Other

Other61st Annual Technical Conference ANTEC 2003
CountryUnited States
CityNashville, TN
Period5/4/035/8/03

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Compatibilizers
Anthracene
Graft copolymers
Polymer blends
Block copolymers
Polymers
Amines
Fluorescence
Detectors
Wavelength

Cite this

Jeon, H. K., Moon, B., Hoye, T. R., & Macosko, C. (2003). Reactions at polymer-polymer interfaces for blend compatibilization. 3784-3788. Paper presented at 61st Annual Technical Conference ANTEC 2003, Nashville, TN, United States.

Reactions at polymer-polymer interfaces for blend compatibilization. / Jeon, Hyun K.; Moon, Bongjin; Hoye, Thomas R; Macosko, Chris.

2003. 3784-3788 Paper presented at 61st Annual Technical Conference ANTEC 2003, Nashville, TN, United States.

Research output: Contribution to conferencePaper

Jeon, HK, Moon, B, Hoye, TR & Macosko, C 2003, 'Reactions at polymer-polymer interfaces for blend compatibilization' Paper presented at 61st Annual Technical Conference ANTEC 2003, Nashville, TN, United States, 5/4/03 - 5/8/03, pp. 3784-3788.
Jeon HK, Moon B, Hoye TR, Macosko C. Reactions at polymer-polymer interfaces for blend compatibilization. 2003. Paper presented at 61st Annual Technical Conference ANTEC 2003, Nashville, TN, United States.
Jeon, Hyun K. ; Moon, Bongjin ; Hoye, Thomas R ; Macosko, Chris. / Reactions at polymer-polymer interfaces for blend compatibilization. Paper presented at 61st Annual Technical Conference ANTEC 2003, Nashville, TN, United States.5 p.
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