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

5 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\}",

year = "2013",

month = may,

day = "21",

doi = "10.1039/c3nr00447c",

language = "English",

volume = "5",

pages = "4351--4354",

journal = "Nanoscale",

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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 - https://www.scopus.com/pages/publications/84877748555

U2 - 10.1039/c3nr00447c

DO - 10.1039/c3nr00447c

M3 - Article

AN - SCOPUS:84877748555

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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