In situ TEM observation of phase transition of the nanoscopic patterns on baroplastic block copolymer films during nanoindentation

Ara Jo; Gil Ho Gu; Hong Chul Moon; Sung Hyun Han; Sang Ho Oh; Chan Gyung Park; Jin Kon Kim

doi:10.1039/c3nr00447c

In situ TEM observation of phase transition of the nanoscopic patterns on baroplastic block copolymer films during nanoindentation

Ara Jo, Gil Ho Gu, Hong Chul Moon, Sung Hyun Han, Sang Ho Oh, Chan Gyung Park, Jin Kon Kim

Department of Chemical Engineering

Pohang University of Science and Technology

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We investigated the in situ phase transition of the nanoscopic patterns on block copolymer thin films during nanoindentation by using a transmission electron microscope (TEM) with a specially designed nanoindenter. For the first time, we observed directly an in situ phase transition from lamellar microdomains to disordered states during the nanoindentation on a baroplastic polystyrene-block-poly(n-pentyl methacrylate) copolymer (PS-b-PnPMA) film. Through the in situ TEM observation, the mechanism of the nanoscopic pattern formation on a block copolymer thin film by indentation is fully understood.

Original language	English
Pages (from-to)	4351-4354
Number of pages	4
Journal	Nanoscale
Volume	5
Issue number	10
DOIs	https://doi.org/10.1039/c3nr00447c
State	Published - 21 May 2013

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title = "In situ TEM observation of phase transition of the nanoscopic patterns on baroplastic block copolymer films during nanoindentation",

abstract = "We investigated the in situ phase transition of the nanoscopic patterns on block copolymer thin films during nanoindentation by using a transmission electron microscope (TEM) with a specially designed nanoindenter. For the first time, we observed directly an in situ phase transition from lamellar microdomains to disordered states during the nanoindentation on a baroplastic polystyrene-block-poly(n-pentyl methacrylate) copolymer (PS-b-PnPMA) film. Through the in situ TEM observation, the mechanism of the nanoscopic pattern formation on a block copolymer thin film by indentation is fully understood.",

author = "Ara Jo and Gu, {Gil Ho} and Moon, {Hong Chul} and Han, {Sung Hyun} and Oh, {Sang Ho} and Park, {Chan Gyung} and Kim, {Jin Kon}",

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doi = "10.1039/c3nr00447c",

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T1 - In situ TEM observation of phase transition of the nanoscopic patterns on baroplastic block copolymer films during nanoindentation

AU - Jo, Ara

AU - Gu, Gil Ho

AU - Moon, Hong Chul

AU - Han, Sung Hyun

AU - Oh, Sang Ho

AU - Park, Chan Gyung

AU - Kim, Jin Kon

PY - 2013/5/21

Y1 - 2013/5/21

N2 - We investigated the in situ phase transition of the nanoscopic patterns on block copolymer thin films during nanoindentation by using a transmission electron microscope (TEM) with a specially designed nanoindenter. For the first time, we observed directly an in situ phase transition from lamellar microdomains to disordered states during the nanoindentation on a baroplastic polystyrene-block-poly(n-pentyl methacrylate) copolymer (PS-b-PnPMA) film. Through the in situ TEM observation, the mechanism of the nanoscopic pattern formation on a block copolymer thin film by indentation is fully understood.

AB - We investigated the in situ phase transition of the nanoscopic patterns on block copolymer thin films during nanoindentation by using a transmission electron microscope (TEM) with a specially designed nanoindenter. For the first time, we observed directly an in situ phase transition from lamellar microdomains to disordered states during the nanoindentation on a baroplastic polystyrene-block-poly(n-pentyl methacrylate) copolymer (PS-b-PnPMA) film. Through the in situ TEM observation, the mechanism of the nanoscopic pattern formation on a block copolymer thin film by indentation is fully understood.

UR - http://www.scopus.com/inward/record.url?scp=84877748555&partnerID=8YFLogxK

U2 - 10.1039/c3nr00447c

DO - 10.1039/c3nr00447c

M3 - Article

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SN - 2040-3364

VL - 5

SP - 4351

EP - 4354

JO - Nanoscale

JF - Nanoscale

IS - 10

ER -

In situ TEM observation of phase transition of the nanoscopic patterns on baroplastic block copolymer films during nanoindentation

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