End-functionalized block copolymers of styrene and isoprene. A d.s.c. study

Stergios Pispas; Nikos Hadjichristidis; Jimmy W. Mays

doi:10.1016/0032-3861(96)00196-6

End-functionalized block copolymers of styrene and isoprene. A d.s.c. study

Stergios Pispas^*, Nikos Hadjichristidis, Jimmy W. Mays

^*Corresponding author for this work

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

7 Scopus citations

Abstract

The influence of the end groups on the glass transition temperature, T_g, of the polyisoprene block of styrene-isoprene diblocks was studied by differential scanning calorimetry. The end-functionalized styrene-isoprene diblock samples used have dimethylamino and sulfobetaine groups attached on the polyisoprene chain end. An increase in the low temperature (polyisoprene-type) T_g value was observed for the lower molecular weight zwitterion capped polymers. This effect is attributed to restricted segmental mobility of the polyisoprene chains found in the proximity of the ionic aggregates.

Original language	English (US)
Pages (from-to)	3989-3991
Number of pages	3
Journal	Polymer
Volume	37
Issue number	17
DOIs	https://doi.org/10.1016/0032-3861(96)00196-6
State	Published - 1996
Externally published	Yes

Keywords

Block copolymers
End-functionalized polymers
Glass transition

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/0032-3861(96)00196-6

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@article{6032ffd2f2ab4e3fa5345d10b08234e2,

title = "End-functionalized block copolymers of styrene and isoprene. A d.s.c. study",

abstract = "The influence of the end groups on the glass transition temperature, Tg, of the polyisoprene block of styrene-isoprene diblocks was studied by differential scanning calorimetry. The end-functionalized styrene-isoprene diblock samples used have dimethylamino and sulfobetaine groups attached on the polyisoprene chain end. An increase in the low temperature (polyisoprene-type) Tg value was observed for the lower molecular weight zwitterion capped polymers. This effect is attributed to restricted segmental mobility of the polyisoprene chains found in the proximity of the ionic aggregates.",

keywords = "Block copolymers, End-functionalized polymers, Glass transition",

author = "Stergios Pispas and Nikos Hadjichristidis and Mays, {Jimmy W.}",

year = "1996",

doi = "10.1016/0032-3861(96)00196-6",

language = "English (US)",

volume = "37",

pages = "3989--3991",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier",

number = "17",

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TY - JOUR

T1 - End-functionalized block copolymers of styrene and isoprene. A d.s.c. study

AU - Pispas, Stergios

AU - Hadjichristidis, Nikos

AU - Mays, Jimmy W.

PY - 1996

Y1 - 1996

N2 - The influence of the end groups on the glass transition temperature, Tg, of the polyisoprene block of styrene-isoprene diblocks was studied by differential scanning calorimetry. The end-functionalized styrene-isoprene diblock samples used have dimethylamino and sulfobetaine groups attached on the polyisoprene chain end. An increase in the low temperature (polyisoprene-type) Tg value was observed for the lower molecular weight zwitterion capped polymers. This effect is attributed to restricted segmental mobility of the polyisoprene chains found in the proximity of the ionic aggregates.

AB - The influence of the end groups on the glass transition temperature, Tg, of the polyisoprene block of styrene-isoprene diblocks was studied by differential scanning calorimetry. The end-functionalized styrene-isoprene diblock samples used have dimethylamino and sulfobetaine groups attached on the polyisoprene chain end. An increase in the low temperature (polyisoprene-type) Tg value was observed for the lower molecular weight zwitterion capped polymers. This effect is attributed to restricted segmental mobility of the polyisoprene chains found in the proximity of the ionic aggregates.

KW - Block copolymers

KW - End-functionalized polymers

KW - Glass transition

UR - http://www.scopus.com/inward/record.url?scp=0030217172&partnerID=8YFLogxK

U2 - 10.1016/0032-3861(96)00196-6

DO - 10.1016/0032-3861(96)00196-6

M3 - Article

AN - SCOPUS:0030217172

SN - 0032-3861

VL - 37

SP - 3989

EP - 3991

JO - Polymer

JF - Polymer

IS - 17

ER -

End-functionalized block copolymers of styrene and isoprene. A d.s.c. study

Abstract

Keywords

ASJC Scopus subject areas

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