Preparation and Particle-Size Analysis of Small-Scale Thermal Expansion Microcapsules

Li, Zhenzhen; Sun, Zhicheng; Li, Gongming; Yang, Zhitong

doi:10.1007/978-981-19-1673-1_59

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…2 In 1970, Dow Chemical Co. 3 published the first patent on TEMs which has since been followed by an increasing number of patents and publications. [4][5][6][7][8][9][10][11] There are studies where polymerization parameters including the effect of crosslinking, 1,[12][13][14][15][16][17][18][19] structure, 20 surface modification, [21][22][23][24][25] and applications 2,[26][27][28][29] have been investigated. Traditionally, TEMs are prepared from fossil-based monomers such as acrylonitrile (AN), methacrylonitrile (MAN), various (meth)acrylates, maleimides, acrylamides, vinylidene chloride, and styrene.…”

Section: Introductionmentioning

confidence: 99%

Thermally expandable microspheres based on fully or partially bio‐based polymers

Mousa,

Jonsson,

Granbom

et al. 2024

J of Applied Polymer Sci

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Bio‐based or partially bio‐based thermally expandable microspheres (TEMs) were synthesized by suspension (co)polymerization of the bio‐based monomer α‐methylene‐γ‐valerolactone (MeMBL) together with acrylonitrile and/or methyl methacrylate to form expandable core/shell particles by encapsulating a hydrocarbon‐based blowing agent. The core/shell polymers were characterized with respect to their chemical structure, thermal expansion, and morphology. The obtained particles, TEMs, showed an increasing onset expansion temperature with increasing content of MeMBL owing to the high glass transition temperature of PMeMBL. As a result, bio‐based/partially bio‐based TEMs are achieved with high thermal stability and expansion properties which can be tailored for various applications.

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