國立高雄大學圖資館 |

登入

回首頁

3D in Situ Chemical Synthesis: Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	3D in Situ Chemical Synthesis: Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.
作者:	Chen, Amylynn C.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, 2023
面頁冊數:	117 p.
附註:	Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
附註:	Advisor: Greer, Julia R.
Contained By:	Dissertations Abstracts International85-03B.
標題:	Mechanical properties.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30604335
ISBN:	9798380267465

3D in Situ Chemical Synthesis: Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.
Chen, Amylynn C.

3D in Situ Chemical Synthesis: Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 117 p.

Source: Dissertations Abstracts International, Volume: 85-03, Section: B.

Thesis (Ph.D.)--California Institute of Technology, 2023.

This item must not be sold to any third party vendors.

As additive manufacturing gains popularity in rapid-prototyping, manufacturing, and customized production, there is a continuous demand in seeking new materials with advanced functionalities to satisfy the wide range of applications in aerospace, construction, optics, actuation, dentistry, biomedical practices, and even food industry. Vat photopolymerization (VP), a light-enabled AM technique, is particularly promising due to its ability to achieve good surface quality, high resolution, and large volumetric throughput. The vast majority of materials obtained by VP are covalently-crosslinked thermosets with nondegradable carbon backbones. This highly crosslinked polymer structure gives rise to stiff and brittle materials, limiting the structural functionality in desired applications.This thesis explores a variety of polymer network structures for new VP photopolymers: a) dynamically-crosslinked compliant polymer, b) interpenetrating network (IPN) hydrogel, and c) covalently-crosslinked polymer with labile group (ex. ester) insertion to polymer backbone. With the dynamic crosslinking system, we demonstrate tunable mechanical behaviors of the metal-coordinated supramolecular polymers. These materials display a range of failure strain of 450%–940% and ultimate tensile strength (UTS) of 12.4–2.2 MPa with varying resin compositions. To incorporate multifunctionality, we design thermoresponsive IPN hydrogels by fabricating a hydrophilic host polymer network via VP and a subsequent formation a thermoresponsive 2nd network (poly(N-Isopropylacrylamide)). The architected IPNs consistently display strong polymer-liquid phase separation behavior and a tunable water release behavior with volumetric shrinkage between 30% and 70% upon heating at 50\uD835\uDC5CC. Finally, to promote the degradability of the acylate-based photoresin, we demonstrated successful incorporation for ester functional groups into the polymer backbone via radical ring opening polymerization of cyclic ketene acetals. The obtained polymer undergoes 84% mass loss within 7 hours under hydrolytic degradation condition. Overall, we demonstrated VP as a powerful technique to achieve one-pot synthesis and fabrication of functional materials. Our explorations on the development of degradable photopolymers, thermoresponsive double-network hydrogels, and metal-coordinated supramolecular polymers provide valuable insights into the impact of resin formulation on mechanical properties. From analyzing the molecular weight of 3DP materials to finetuning of phase separation behavior and degradability, we demonstrate that VP provides a new platform to inspire advanced photoresin design strategies for desirable mechanical performance.

ISBN: 9798380267465Subjects--Topical Terms:

942565
Mechanical properties.

3D in Situ Chemical Synthesis: Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.
LDR:04066nmm a2200445 4500 001 655824
005 20240414211940.5
006 m o d
007 cr#unu||||||||
008 240620s2023 ||||||||||||||||| ||eng d
020 $a 9798380267465
035 $a (MiAaPQ)AAI30604335
035 $a (MiAaPQ)Caltech_oaithesislibrarycaltechedu16057
035 $a AAI30604335
040 $a MiAaPQ $c MiAaPQ
100 1 $a Chen, Amylynn C. $3 966947
245 1 0 $a 3D in Situ Chemical Synthesis: Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 117 p.
500 $a Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
500 $a Advisor: Greer, Julia R.
502 $a Thesis (Ph.D.)--California Institute of Technology, 2023.
506 $a This item must not be sold to any third party vendors.
520 $a As additive manufacturing gains popularity in rapid-prototyping, manufacturing, and customized production, there is a continuous demand in seeking new materials with advanced functionalities to satisfy the wide range of applications in aerospace, construction, optics, actuation, dentistry, biomedical practices, and even food industry. Vat photopolymerization (VP), a light-enabled AM technique, is particularly promising due to its ability to achieve good surface quality, high resolution, and large volumetric throughput. The vast majority of materials obtained by VP are covalently-crosslinked thermosets with nondegradable carbon backbones. This highly crosslinked polymer structure gives rise to stiff and brittle materials, limiting the structural functionality in desired applications.This thesis explores a variety of polymer network structures for new VP photopolymers: a) dynamically-crosslinked compliant polymer, b) interpenetrating network (IPN) hydrogel, and c) covalently-crosslinked polymer with labile group (ex. ester) insertion to polymer backbone. With the dynamic crosslinking system, we demonstrate tunable mechanical behaviors of the metal-coordinated supramolecular polymers. These materials display a range of failure strain of 450%–940% and ultimate tensile strength (UTS) of 12.4–2.2 MPa with varying resin compositions. To incorporate multifunctionality, we design thermoresponsive IPN hydrogels by fabricating a hydrophilic host polymer network via VP and a subsequent formation a thermoresponsive 2nd network (poly(N-Isopropylacrylamide)). The architected IPNs consistently display strong polymer-liquid phase separation behavior and a tunable water release behavior with volumetric shrinkage between 30% and 70% upon heating at 50\uD835\uDC5CC. Finally, to promote the degradability of the acylate-based photoresin, we demonstrated successful incorporation for ester functional groups into the polymer backbone via radical ring opening polymerization of cyclic ketene acetals. The obtained polymer undergoes 84% mass loss within 7 hours under hydrolytic degradation condition. Overall, we demonstrated VP as a powerful technique to achieve one-pot synthesis and fabrication of functional materials. Our explorations on the development of degradable photopolymers, thermoresponsive double-network hydrogels, and metal-coordinated supramolecular polymers provide valuable insights into the impact of resin formulation on mechanical properties. From analyzing the molecular weight of 3DP materials to finetuning of phase separation behavior and degradability, we demonstrate that VP provides a new platform to inspire advanced photoresin design strategies for desirable mechanical performance.
590 $a School code: 0037.
650 4 $a Mechanical properties. $3 942565
650 4 $a Propagation. $3 966906
650 4 $a Polymers. $3 188330
650 4 $a Raw materials. $3 211813
650 4 $a Tensile strength. $3 966949
650 4 $a Resins. $3 966950
650 4 $a Spectrum analysis. $3 188665
650 4 $a Failure analysis. $3 966951
650 4 $a Rheology. $3 196292
650 4 $a Lasers. $3 182244
650 4 $a Free radicals. $3 966952
650 4 $a Thermogravimetric analysis. $3 942568
650 4 $a Polymerization. $3 190507
650 4 $a 3-D printers. $3 966953
650 4 $a Phase transitions. $3 966954
650 4 $a Design. $3 204000
650 4 $a Printing. $3 752239
650 4 $a Energy. $3 212397
650 4 $a Liquid crystal displays--LCDs. $3 966955
650 4 $a Heat conductivity. $3 966956
650 4 $a Analytical chemistry. $3 708695
650 4 $a Chemistry. $3 188628
650 4 $a Industrial engineering. $3 200218
650 4 $a Materials science. $3 221779
650 4 $a Mechanics. $3 200022
650 4 $a Optics. $3 204142
650 4 $a Physics. $3 179414
650 4 $a Polymer chemistry. $3 708579
650 4 $a Thermodynamics. $3 183038
690 $a 0791
690 $a 0389
690 $a 0486
690 $a 0485
690 $a 0546
690 $a 0794
690 $a 0346
690 $a 0752
690 $a 0605
690 $a 0495
690 $a 0348
710 2 $a California Institute of Technology. $b Engineering and Applied Science. $3 966948
773 0 $t Dissertations Abstracts International $g 85-03B.
790 $a 0037
791 $a Ph.D.
792 $a 2023
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30604335