Colloid Coalescence with Focused X Rays | Zendy

Byung Mook Weon | Zendy; J. T. Kim | Zendy; Jung Ho Je | Zendy; Jae Mok Yi | Zendy; S. Wang | Zendy; W.-K. Lee | Zendy

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Colloid Coalescence with Focused X Rays

Author(s) -

Byung Mook Weon,

J. T. Kim,

Jung Ho Je,

Jae Mok Yi,

S. Wang,

W.-K. Lee

Publication year - 2011

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.107.018301

Subject(s) - coalescence (physics) , colloid , materials science , polymer , photonics , nanolithography , chemical physics , cladding (metalworking) , viscoelasticity , glass transition , sintering , nanotechnology , chemical engineering , composite material , fabrication , chemistry , optoelectronics , physics , medicine , alternative medicine , pathology , astrobiology , engineering

We show direct evidence that focused xB rays enable us to merge polymer colloidal particles at room temperature. This phenomenon is ascribed to the photochemical scission of colloids with xB rays, reducing the molecular weight, glass transition temperature, surface tension, and viscosity of colloids. The observation of the neck bridge growth with time shows that the x-ray-induced colloid coalescence is analogous to viscoelastic coalescence. This finding suggests a feasible protocol of photonic nanofabrication by sintering or welding of polymers, without thermal damage, using x-ray photonics. © 2011 American Physical Society.Link_to_subscribed_fulltex

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