Liquid crystalline light-emitting thermally stable readily processable substituted polyacetylenes

Ben Zhong Tang; Jacky Wing Yip Lam; Jingdong Luo; Yuping Dong; Kevin Ka Leung Cheuk; Zhiliang Xie; Hoi Sing Kwok

doi:10.1117/12.449942

Liquid crystalline light-emitting thermally stable readily processable substituted polyacetylenes

Ben Zhong Tang^*
, Jacky Wing Yip Lam
, Jingdong Luo
, Yuping Dong
, Kevin Ka Leung Cheuk
, Zhiliang Xie
, Hoi Sing Kwok

^*Corresponding author for this work

Hong Kong University of Science and Technology

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

Mesomorphic and luminescent poly(propiolates) with different skeleton structures (-{(R)C=C[CO₂(CH₂)₆OCO-Biph-OC₇H ₁₅]}_n-; R = H (1), CH₃ (2), C₆H₅ (3), Biph = biphenylyl} are synthesized. The backbone absorption in 2 and 3 are weak but upon photoexcitation, the polymers emit strong violet light of 369 nm, whose intensities are higher than that from poly(1-phenyl-1-octyne), a well-known highly fluorescent polyacetylene. The main chain of 3 absorbs strongly at 380 nm and the polymer is completely nonluminescent. All the polymers are thermally stable and form enantiotropic monolayer SmA phase, with 1 adopting well-ordered packing arrangements.

Original language	English
Pages (from-to)	132-138
Number of pages	7
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4463
DOIs	https://doi.org/10.1117/12.449942
Publication status	Published - 1 Jan 2001
Externally published	Yes
Event	Liquid Crystals V - San Diego,CA, United States Duration: 29 Jul 2001 → 30 Jul 2001

Keywords

Conjugated polymers
Light emitting polymers
Liquid crystalline polymers
Luminescence
Mesomorphism
Poly(propiolates)
Polyacetylenes

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10.1117/12.449942

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@article{367b50c9f4154c4183c75491b8b16604,

title = "Liquid crystalline light-emitting thermally stable readily processable substituted polyacetylenes",

abstract = "Mesomorphic and luminescent poly(propiolates) with different skeleton structures (-\{(R)C=C[CO2(CH2)6OCO-Biph-OC7H 15]\}n-; R = H (1), CH3 (2), C6H5 (3), Biph = biphenylyl\} are synthesized. The backbone absorption in 2 and 3 are weak but upon photoexcitation, the polymers emit strong violet light of 369 nm, whose intensities are higher than that from poly(1-phenyl-1-octyne), a well-known highly fluorescent polyacetylene. The main chain of 3 absorbs strongly at 380 nm and the polymer is completely nonluminescent. All the polymers are thermally stable and form enantiotropic monolayer SmA phase, with 1 adopting well-ordered packing arrangements.",

keywords = "Conjugated polymers, Light emitting polymers, Liquid crystalline polymers, Luminescence, Mesomorphism, Poly(propiolates), Polyacetylenes",

author = "Tang, \{Ben Zhong\} and Lam, \{Jacky Wing Yip\} and Jingdong Luo and Yuping Dong and Cheuk, \{Kevin Ka Leung\} and Zhiliang Xie and Kwok, \{Hoi Sing\}",

year = "2001",

month = jan,

day = "1",

doi = "10.1117/12.449942",

language = "English",

volume = "4463",

pages = "132--138",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Liquid Crystals V ; Conference date: 29-07-2001 Through 30-07-2001",

}

TY - JOUR

T1 - Liquid crystalline light-emitting thermally stable readily processable substituted polyacetylenes

AU - Tang, Ben Zhong

AU - Lam, Jacky Wing Yip

AU - Luo, Jingdong

AU - Dong, Yuping

AU - Cheuk, Kevin Ka Leung

AU - Xie, Zhiliang

AU - Kwok, Hoi Sing

PY - 2001/1/1

Y1 - 2001/1/1

N2 - Mesomorphic and luminescent poly(propiolates) with different skeleton structures (-{(R)C=C[CO2(CH2)6OCO-Biph-OC7H 15]}n-; R = H (1), CH3 (2), C6H5 (3), Biph = biphenylyl} are synthesized. The backbone absorption in 2 and 3 are weak but upon photoexcitation, the polymers emit strong violet light of 369 nm, whose intensities are higher than that from poly(1-phenyl-1-octyne), a well-known highly fluorescent polyacetylene. The main chain of 3 absorbs strongly at 380 nm and the polymer is completely nonluminescent. All the polymers are thermally stable and form enantiotropic monolayer SmA phase, with 1 adopting well-ordered packing arrangements.

AB - Mesomorphic and luminescent poly(propiolates) with different skeleton structures (-{(R)C=C[CO2(CH2)6OCO-Biph-OC7H 15]}n-; R = H (1), CH3 (2), C6H5 (3), Biph = biphenylyl} are synthesized. The backbone absorption in 2 and 3 are weak but upon photoexcitation, the polymers emit strong violet light of 369 nm, whose intensities are higher than that from poly(1-phenyl-1-octyne), a well-known highly fluorescent polyacetylene. The main chain of 3 absorbs strongly at 380 nm and the polymer is completely nonluminescent. All the polymers are thermally stable and form enantiotropic monolayer SmA phase, with 1 adopting well-ordered packing arrangements.

KW - Conjugated polymers

KW - Light emitting polymers

KW - Liquid crystalline polymers

KW - Luminescence

KW - Mesomorphism

KW - Poly(propiolates)

KW - Polyacetylenes

UR - https://www.scopus.com/pages/publications/0035767501

U2 - 10.1117/12.449942

DO - 10.1117/12.449942

M3 - Conference article

AN - SCOPUS:0035767501

SN - 0277-786X

VL - 4463

SP - 132

EP - 138

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Liquid Crystals V

Y2 - 29 July 2001 through 30 July 2001

ER -

Liquid crystalline light-emitting thermally stable readily processable substituted polyacetylenes

Abstract

Keywords

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