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Xu W, Wang Z, Cao H, Zhou L, Jiang N, Ke K, Liu Z, Yang W, Yang M. Optimization of the Thermally Conductive Low- k Polymer Dielectrics Based on Multisource Free-Volume Effects. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16809-16819. [PMID: 38502907 DOI: 10.1021/acsami.4c00553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Polymers/polymer matrix composites possessing low dielectric constants (low-k polymer dielectrics) contribute to the advance of electronics, for instance, microprocessor chips, mobile phone antennas, and data communication terminals. However, the intrinsic long-chain structural characteristic results in poor thermal conductivities, which draw heat accumulation and undermine the outstanding low-k performance of polymers. Herein, multisource free-volume effects that combine two novel kinds of extra free volume with the known in-cage free volume of polyhedral oligomeric silsesquioxanes (POSSs) are discussed to reduce the capacity for dielectric constant reduction. The multisource free-volume effects of POSSs are associated with the thermal conductive network formed by the hexagonal boron nitride (BN) in the polymer matrix. The results show a decent balance between low-k performance (dielectric constant is 2.08 at 1 MHz and 1.98 at 10 GHz) and thermal conductivity (0.555 W m-1 K-1, 4.91 times the matrix). The results provide a new idea to maximize the free-volume effects of POSSs to optimize dielectric properties together with other desired performances for the dielectrics.
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Affiliation(s)
- Weidi Xu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ziyang Wang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Hong Cao
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ling Zhou
- School of Materials Scence and Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Niu Jiang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Kai Ke
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Zhengying Liu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Wei Yang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Mingbo Yang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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Manteghi A, Arabi H, Jahani Y. Synthesis, characterization, rheological and thermal behavior of metallocene ethylene − norbornene copolymers with low norbornene content using pentafluorophenol modified methylaluminoxane. POLYM INT 2015. [DOI: 10.1002/pi.4863] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Amin Manteghi
- Iran Polymer and Petrochemical Institute (IPPI); PO Box 14965-115 Tehran Iran
| | - Hassan Arabi
- Iran Polymer and Petrochemical Institute (IPPI); PO Box 14965-115 Tehran Iran
| | - Yousef Jahani
- Iran Polymer and Petrochemical Institute (IPPI); PO Box 14965-115 Tehran Iran
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Makrocka-Rydzyk M, Nowaczyk G, Głowinkowski S, Jurga S. Dynamic mechanical study of molecular dynamics in ethylene–norbornene copolymers. POLYMER 2010. [DOI: 10.1016/j.polymer.2009.12.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Saunier J, Chodur CA, Larbes L, Mrad O, Yagoubi N. Using cycloolefin copolymers as pharmaceutical or cosmetic storage material. I. A study of adjuvant migration and of polymer ageing. J Appl Polym Sci 2007. [DOI: 10.1002/app.25612] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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