Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 30, 2014
Previous Article Next Article

Glass transition of poly(methyl methacrylate) nanospheres in aqueous dispersion

Author affiliations

Abstract

Surfactant-free nanospheres and latex nanospheres of poly(methyl methacrylate) (PMMA) with diameter ranging from 20 to 220 nm are prepared by atom transfer radical polymerization (ATRP) in microemulsions and subsequent dialysis against deionized water. The glass transitions of these PMMA nanospheres are characterized using nano differential scanning calorimetry (nano-DSC) in aqueous dispersions. The glass transition temperature (Tg) of the surfactant-free PMMA nanospheres and nonionic PMMA latex nanospheres with diameters below 150 nm is less than that of the PMMA bulk, and Tg decreases with the decrease of the diameter. In contrast, Tg of the anionic PMMA latex nanospheres is size-independent and is near to that of the PMMA bulk. The influence of the environment surrounding the PMMA nanospheres on glass transitions as well as comparisons to our prior studies with polystyrene (PS) nanospheres in aqueous dispersions are discussed.

Graphical abstract: Glass transition of poly(methyl methacrylate) nanospheres in aqueous dispersion

Back to tab navigation

Publication details

The article was received on 29 Apr 2014, accepted on 12 Jun 2014 and first published on 18 Jun 2014


Article type: Paper
DOI: 10.1039/C4CP01849D
Citation: Phys. Chem. Chem. Phys., 2014,16, 15941-15947

  •   Request permissions

    Glass transition of poly(methyl methacrylate) nanospheres in aqueous dispersion

    S. Feng, Y. Chen, B. Mai, W. Wei, C. Zheng, Q. Wu, G. Liang, H. Gao and F. Zhu, Phys. Chem. Chem. Phys., 2014, 16, 15941
    DOI: 10.1039/C4CP01849D

Search articles by author

Spotlight

Advertisements