國立虎尾科技大學 |

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

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	3D in Situ Chemical Synthesis :/
其他題名:	Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.
作者:	Chen, Amylynn C.
面頁冊數:	1 online resource (117 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Contained By:	Dissertations Abstracts International85-03B.
標題:	Thermodynamics. -
電子資源:	click for full text (PQDT)
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. - 1 online resource (117 pages)

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

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

Includes bibliographical references

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.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380267465Subjects--Topical Terms:

596513
Thermodynamics.
Index Terms--Genre/Form:

554714
Electronic books.

3D in Situ Chemical Synthesis : = Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.
LDR:04218ntm a22004457 4500 001 1142083
005 20240414211940.5
006 m o d
007 cr mn ---uuuuu
008 250605s2023 xx obm 000 0 eng d
020 $a 9798380267465
035 $a (MiAaPQ)AAI30604335
035 $a (MiAaPQ)Caltech_oaithesislibrarycaltechedu16057
035 $a AAI30604335
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Chen, Amylynn C. $3 1466253
245 1 0 $a 3D in Situ Chemical Synthesis : $b Additive Manufacturing of Functional Polymeric Materials Via Vat Photo-Polymerization.
264 0 $c 2023
300 $a 1 online resource (117 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
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.
504 $a Includes bibliographical references
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.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Thermodynamics. $3 596513
650 4 $a Polymer chemistry. $3 1182163
650 4 $a Physics. $3 564049
650 4 $a Optics. $3 595336
650 4 $a Mechanics. $3 527684
650 4 $a Materials science. $3 557839
650 4 $a Industrial engineering. $3 679492
650 4 $a Chemistry. $3 593913
650 4 $a Analytical chemistry. $3 1182118
650 4 $a Heat conductivity. $3 1372522
650 4 $a Liquid crystal displays--LCDs. $3 1413557
650 4 $a Energy. $3 784773
650 4 $a Printing. $3 599714
650 4 $a Design. $3 595500
650 4 $a Phase transitions. $3 1464712
650 4 $a 3-D printers. $3 1372802
650 4 $a Polymerization. $3 673534
650 4 $a Thermogravimetric analysis. $3 1372599
650 4 $a Free radicals. $3 1466255
650 4 $a Lasers. $3 557748
650 4 $a Rheology. $3 644023
650 4 $a Failure analysis. $3 1466254
650 4 $a Spectrum analysis. $3 582358
650 4 $a Resins. $3 1372598
650 4 $a Tensile strength. $3 1215672
650 4 $a Raw materials. $3 1113584
650 4 $a Polymers. $3 561233
650 4 $a Propagation. $3 1372600
650 4 $a Mechanical properties. $3 1004682
655 7 $a Electronic books. $2 local $3 554714
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 1437764
710 2 $a ProQuest Information and Learning Co. $3 1178819
773 0 $t Dissertations Abstracts International $g 85-03B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30604335 $z click for full text (PQDT)