Evaluation of the spacer effect on adamantane-containing vinyl polymer Tg's

Havva Yagci Acar; Jennifer J. Jensen; Kevin Thigpen; John A. McGowen; Lon J. Mathias

doi:10.1021/ma991621j

Evaluation of the spacer effect on adamantane-containing vinyl polymer T_g's

Havva Yagci Acar, Jennifer J. Jensen, Kevin Thigpen, John A. McGowen, Lon J. Mathias

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

52 Scopus citations

Abstract

Two new adamantane-containing methacrylates having methylene and phenyl spacers between the adamantane and the methacrylate were synthesized: 1-adamantylmethyl methacrylate (AdMMA, 1) and 4-(1-adamantyl)phenyl methacrylate (AdPMA, 2). The homopolymer of 1 had a T_g of 201 °C while 2 showed a T_g of 253 °C. Copolymers of both monomers with styrene (St) showed significant T_g increases over PSt. The incremental increase obtained with AdPMA per adamantane unit is the highest of all vinyl monomers reported to date, to the best of our knowledge, with a value of 2.2 °C/mol %. Both sets of copolymers showed higher incorporation of adamantane monomers in the copolymer than the feed, with reactivity ratios calculated to be r₁(St) = 0.22 and r₂(AdPMA) = 1.52 and r₁(St) = 0.94 and r₂(AdMMA) = 1.54.

Original language	English (US)
Pages (from-to)	3855-3859
Number of pages	5
Journal	Macromolecules
Volume	33
Issue number	10
DOIs	https://doi.org/10.1021/ma991621j
State	Published - 2000
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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@article{6ec99d21875e40219ce6cefee2d09dc6,

title = "Evaluation of the spacer effect on adamantane-containing vinyl polymer Tg's",

abstract = "Two new adamantane-containing methacrylates having methylene and phenyl spacers between the adamantane and the methacrylate were synthesized: 1-adamantylmethyl methacrylate (AdMMA, 1) and 4-(1-adamantyl)phenyl methacrylate (AdPMA, 2). The homopolymer of 1 had a Tg of 201 °C while 2 showed a Tg of 253 °C. Copolymers of both monomers with styrene (St) showed significant Tg increases over PSt. The incremental increase obtained with AdPMA per adamantane unit is the highest of all vinyl monomers reported to date, to the best of our knowledge, with a value of 2.2 °C/mol %. Both sets of copolymers showed higher incorporation of adamantane monomers in the copolymer than the feed, with reactivity ratios calculated to be r1(St) = 0.22 and r2(AdPMA) = 1.52 and r1(St) = 0.94 and r2(AdMMA) = 1.54.",

author = "Acar, {Havva Yagci} and Jensen, {Jennifer J.} and Kevin Thigpen and McGowen, {John A.} and Mathias, {Lon J.}",

year = "2000",

doi = "10.1021/ma991621j",

language = "English (US)",

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T1 - Evaluation of the spacer effect on adamantane-containing vinyl polymer Tg's

AU - Acar, Havva Yagci

AU - Jensen, Jennifer J.

AU - Thigpen, Kevin

AU - McGowen, John A.

AU - Mathias, Lon J.

PY - 2000

Y1 - 2000

N2 - Two new adamantane-containing methacrylates having methylene and phenyl spacers between the adamantane and the methacrylate were synthesized: 1-adamantylmethyl methacrylate (AdMMA, 1) and 4-(1-adamantyl)phenyl methacrylate (AdPMA, 2). The homopolymer of 1 had a Tg of 201 °C while 2 showed a Tg of 253 °C. Copolymers of both monomers with styrene (St) showed significant Tg increases over PSt. The incremental increase obtained with AdPMA per adamantane unit is the highest of all vinyl monomers reported to date, to the best of our knowledge, with a value of 2.2 °C/mol %. Both sets of copolymers showed higher incorporation of adamantane monomers in the copolymer than the feed, with reactivity ratios calculated to be r1(St) = 0.22 and r2(AdPMA) = 1.52 and r1(St) = 0.94 and r2(AdMMA) = 1.54.

AB - Two new adamantane-containing methacrylates having methylene and phenyl spacers between the adamantane and the methacrylate were synthesized: 1-adamantylmethyl methacrylate (AdMMA, 1) and 4-(1-adamantyl)phenyl methacrylate (AdPMA, 2). The homopolymer of 1 had a Tg of 201 °C while 2 showed a Tg of 253 °C. Copolymers of both monomers with styrene (St) showed significant Tg increases over PSt. The incremental increase obtained with AdPMA per adamantane unit is the highest of all vinyl monomers reported to date, to the best of our knowledge, with a value of 2.2 °C/mol %. Both sets of copolymers showed higher incorporation of adamantane monomers in the copolymer than the feed, with reactivity ratios calculated to be r1(St) = 0.22 and r2(AdPMA) = 1.52 and r1(St) = 0.94 and r2(AdMMA) = 1.54.

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Evaluation of the spacer effect on adamantane-containing vinyl polymer T_g's

Abstract

ASJC Scopus subject areas

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