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Novel Materials Comprised of Molecular Springs : = Synthetic Approaches to Bridgehead-Substituted Bicyclo[n.n.n]Alkane Monomers.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Novel Materials Comprised of Molecular Springs :/
Reminder of title:	Synthetic Approaches to Bridgehead-Substituted Bicyclo[n.n.n]Alkane Monomers.
Author:	Mason, David James.
Description:	1 online resource (153 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-11, Section: B.
Contained By:	Dissertations Abstracts International84-11B.
Subject:	Chemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30485060click for full text (PQDT)
ISBN:	9798379502379

Novel Materials Comprised of Molecular Springs : = Synthetic Approaches to Bridgehead-Substituted Bicyclo[n.n.n]Alkane Monomers.
Mason, David James.

Novel Materials Comprised of Molecular Springs :Synthetic Approaches to Bridgehead-Substituted Bicyclo[n.n.n]Alkane Monomers. - 1 online resource (153 pages)

Source: Dissertations Abstracts International, Volume: 84-11, Section: B.

Thesis (Ph.D.)--The University of Arizona, 2023.

Includes bibliographical references

Materials and polymer chemistry are a huge part of our everyday world. From replacing hazardous glass materials with shatterproof plastic to wet and leaky diapers being upgraded with super-absorbent polyacrylate, scientists are constantly searching for novel materials and innovative applications. A new mode of action to manifest bulk elastic properties through the inherent flexibility of a monomer in the polymer main chain rather than through traditional chain entanglements has previously been proposed. A linear polymer containing saturated macrobicyclic monomers, termed molecular springs, has never been made in large enough quantities to be synthesized and studied. A scalable synthetic approach to produce mass quantities of out,out-dimethyl bicyclo[8.8.8]hexacosane-1,10-dicarboxylate has been accomplished. The synthesis features ring-closing metathesis to form monocyclic and bicyclic rings, and an atypical solvent for hydrogenation reactions, dichloromethane. The crystal structure of the bicycle revealed the interbridgehead distance to be 6.20 A with 170º and 173º bridgehead angles exhibiting a colinear arrangement of bridgehead substituents.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379502379Subjects--Topical Terms:

516420
Chemistry.
Subjects--Index Terms:

Bicyclo[8.8.8]hexacosaneIndex Terms--Genre/Form:

542853
Electronic books.

Novel Materials Comprised of Molecular Springs : = Synthetic Approaches to Bridgehead-Substituted Bicyclo[n.n.n]Alkane Monomers.
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502 $a Thesis (Ph.D.)--The University of Arizona, 2023.
504 $a Includes bibliographical references
520 $a Materials and polymer chemistry are a huge part of our everyday world. From replacing hazardous glass materials with shatterproof plastic to wet and leaky diapers being upgraded with super-absorbent polyacrylate, scientists are constantly searching for novel materials and innovative applications. A new mode of action to manifest bulk elastic properties through the inherent flexibility of a monomer in the polymer main chain rather than through traditional chain entanglements has previously been proposed. A linear polymer containing saturated macrobicyclic monomers, termed molecular springs, has never been made in large enough quantities to be synthesized and studied. A scalable synthetic approach to produce mass quantities of out,out-dimethyl bicyclo[8.8.8]hexacosane-1,10-dicarboxylate has been accomplished. The synthesis features ring-closing metathesis to form monocyclic and bicyclic rings, and an atypical solvent for hydrogenation reactions, dichloromethane. The crystal structure of the bicycle revealed the interbridgehead distance to be 6.20 A with 170º and 173º bridgehead angles exhibiting a colinear arrangement of bridgehead substituents.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Chemistry. $3 516420
650 4 $a Polymer chemistry. $3 3173488
650 4 $a Materials science. $3 543314
653 $a Bicyclo[8.8.8]hexacosane
653 $a Bridgehead-substituted
653 $a Compressibility
653 $a Dichloromethane
653 $a Elasticity
653 $a Molecular spring
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710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a The University of Arizona. $b Chemistry. $3 1035937
773 0 $t Dissertations Abstracts International $g 84-11B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30485060 $z click for full text (PQDT)