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Liu F, Li M, Sun J, Fang Q. Bio-based Low- k Polymers at High Frequency Derived from Anethole: Synthesis and the Relationship between the Structures and the Properties. Biomacromolecules 2023; 24:4819-4830. [PMID: 37603588 DOI: 10.1021/acs.biomac.3c00558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Bio-based polymers have been widely investigated as sustainable low dielectric (low-k) materials in past decades. Nevertheless, a few of the polymers with excellent comprehensive properties have been achieved to satisfy the requirements of high-frequency communication application. In this paper, two fluorinated monomers (BCB-F and 2BCB-F) have been designed and successfully prepared from biomass anethole. The thermal-cross-linkable benzocyclobutene and polyfluorobenzene groups were introduced in order to obtain low-k polymers with good comprehensive properties. A control monomer C1 was prepared from the estragole, the isomer of anethole, to study intensively the effect of structures on properties. Among the thermally cured polymers, cured BCB-F with higher fluoride content shows a comparable dielectric constant (Dk) of 2.62 and lower dielectric loss (Df) of 1.31 × 10-3 at a frequency of 10 GHz, as well as better hydrophobic properties with a water uptake of 0.18%. Such good hydrophobic properties enable it to maintain the good dielectric properties even after being soaked in boiling water for 96 h. Cured 2BCB-F with bifunctional benzocyclobutene groups displays excellent heat resistance with a high glass transition temperature (Tg) of 408 °C and a low coefficient of thermal expansion (CTE) of 52 ppm/°C in the temperature range 30-300 °C. Cured 2BCB-F also shows good dielectric properties with a Dk of 2.61 and a Df of 2.60 × 10-3 at a frequency of 10 GHz. The good comprehensive properties reveal that the anethole-based polymers are suitable candidates as matrix or encapsulation resins for application in electronics and microelectric fields.
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Affiliation(s)
- Fengping Liu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Minghui Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Jing Sun
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Qiang Fang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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2
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Wei H, Li X, Ye X, Guo C, Peng J, Liu J, Hu X, Yang J, Chen J. High Thermal Stability and Low Dielectric Constant of BCB Modified Silicone Resins. Polymers (Basel) 2023; 15:2843. [PMID: 37447490 DOI: 10.3390/polym15132843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/12/2023] [Accepted: 06/18/2023] [Indexed: 07/15/2023] Open
Abstract
Based on the excellent physical properties and flexible molecular modifiability, modified silicone resins have received favorable attention in the field of microelectronics, and recently a number of modified silicone resins have appeared while few breakthroughs have been made in low dielectric constant (low-k) materials field due to the limitations of structure or the curing process. In this work, functional silicone resin with different BCB contents was prepared with two monomers. The resins showed low dielectric constant (k = 2.77 at 10 MHz) and thermal stability (T5% = 495.0 °C) after curing. Significant performance changes were observed with the increase in BCB structural units, and the functional silicone obtained does not require melting and dissolution during processing because of good fluidity at room temperature. Moreover, the mechanical properties of silicone resins can be also controlled by adjusting the BCB content. The obtained silicone resins could be potentially used in the field of electronic packaging materials.
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Affiliation(s)
- Hubo Wei
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xian Li
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xu Ye
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
- School of Continuing Education, Southwest University of Science and Technology, Mianyang 621010, China
| | - Chao Guo
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Juan Peng
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jiaying Liu
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xinyu Hu
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Junxiao Yang
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jinxiang Chen
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
- State Key Laboratory of Environmentally-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
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3
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Sun Q, Yuan ZW, Fan WJ, Li ML, Fu WX. Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer. CHINESE JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1007/s10118-023-2955-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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4
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400 076 India
| | | | - Yellaiah Tangella
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400 076 India
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5
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Preparation and Properties of Low Dielectric Constant Siloxane/Carbosilane Hybrid Benzocyclobutene Resin Composites. MATERIALS 2021; 14:ma14216548. [PMID: 34772073 PMCID: PMC8585461 DOI: 10.3390/ma14216548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/16/2021] [Accepted: 10/26/2021] [Indexed: 11/22/2022]
Abstract
Benzocyclobutene-modified silsesquioxane (BCB-POSS) and divinyl tetramethyl disiloxane-bisbenzocyclobutene (DVS-BCB) prepolymer were introduced into the containing benzocyclobutene (BCB) unit matrix resin P(4-MB-co-1-MP) polymerized from 1-methyl-1-(4-benzocyclobutenyl) silacyclobutane (4-MSCBBCB) and 1-methyl-1-phenylsilacyclobutane (1-MPSCB), respectively. The low dielectric constant (low-k) siloxane/carbosilane hybrid benzocyclobutene resin composites, P(4-MB-co-1-MP)/BCB-POSS and P(4-MB-co-1-MP)/DVS-BCB, were prepared. The curing processes of the composites were assessed via Fourier-transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The effects on dielectric properties and heat resistance of those composites with different proportion of BCB-POSS and DVS-BCB were investigated using an impedance analyzer and thermogravimetric analyzer (TGA), respectively. The thermal curing of composites could be carried out by ring-opening polymerization (ROP) of the BCB four-member rings of BCB-POSS or DVS-BCB and those of P(4-MB-co-1-MP). With increasing the proportion of BCB-POSS to 30%, the 5% weight loss temperature (T5%) of P(4-MB-co-1-MP)/BCB-POSS composites was raised visibly, whereas the dielectric constant (k) was decreased owing to the introduction of nanopores into POSS. For P(4-MB-co-1-MP)/DVS-BCB composites, the T5% and k were slightly raised with increasing the proportion of DVS-BCB. The above results indicated that the BCB-POSS showed advantages over conventional fillers to simultaneously improve thermostability and decrease k.
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6
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Shi Y, Cai J, Wu X, Cheng Y. Benzocyclobutene-functionalized hyperbranched polysiloxane for low-k materials with good thermostability. Des Monomers Polym 2021; 24:285-292. [PMID: 34512119 PMCID: PMC8425711 DOI: 10.1080/15685551.2021.1975383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2022] Open
Abstract
Although hyperbranched polysiloxanes have been extensively studied, they have limited practical applications because of their low glass transition temperatures. In this study, we synthesized benzocyclobutene-functionalized hyperbranched polysiloxane (HB-BCB) via the Piers-Rubinsztajn reaction. The synthesized material was cured and crosslinking occurred at temperatures greater than 200 °C, forming a low-k thermoset resin with high thermostability. The structure of the resin was characterized using nuclear magnetic resonance (NMR) spectroscopy, viz. 1H NMR and 13C NMR spectroscopy. 29Si NMR spectroscopy was used to calculate the degree of branching. Differential scanning calorimetry, dynamic mechanical analysis, and thermogravimetric analysis revealed that the cured resin possesses good high-temperature mechanical properties and exhibits a high thermal decomposition temperature (Td5 = 512 °C). In addition, the cured resin has a low dielectric constant (k = 2.70 at 1 MHz) and low dissipation factor (2.13 × 10-3 at 1 MHz). Thus, the prepared resin can function as a low-k material with excellent high-temperature performance. These findings indicate that the performance of crosslinked siloxane is significantly attributed to the introduction of BCB groups and the formation of the highly crosslinked structure.
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Affiliation(s)
- Yunfei Shi
- Department of Materials Science, Fudan University, Shanghai, People's Republic of China
| | - Jing Cai
- Department of Materials Science, Fudan University, Shanghai, People's Republic of China
| | - Xueliang Wu
- Department of Materials Science, Fudan University, Shanghai, People's Republic of China
| | - Yuanrong Cheng
- Department of Materials Science, Fudan University, Shanghai, People's Republic of China
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7
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Jin K, Sun Q, Feng Y, Guo J, Wang C. High-performance polymers adapted to facile melt processing through structure design of benzocyclobutene-containing precursors. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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8
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Li M, Sun J, Fang Q. A fluoropolymer with a low dielectric constant at a high frequency derived from bio-based anethole. Polym Chem 2021. [DOI: 10.1039/d1py00573a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The copolymerization between a fluoro-containing monomer derived from bio-based anethole and a benzocyclobutene (BCB)-containing monomer gave a polymer with good dielectric properties and low water uptake.
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Affiliation(s)
- Minghui Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Jing Sun
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Qiang Fang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
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9
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Feng Y, Jin K, Guo J, Wang C. All-carbocycle hydrocarbon thermosets with high thermal stability and robust mechanical strength for low- k interlayer dielectrics. Polym Chem 2021. [DOI: 10.1039/d1py00877c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two kinds of hydrocarbon precursors were synthesized and cured at elevated temperatures to give cross-linked all-aliphatic/aromatic-ring polymers with a low dielectric constant for next-generation interlayer dielectrics.
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Affiliation(s)
- Yudi Feng
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Ke Jin
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Jia Guo
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Changchun Wang
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
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10
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Fu F, Wang D, Shen M, Shang S, Song Z, Song J. Preparation of planar and hydrophobic benzocyclobutene‐based dielectric material from biorenewable rosin. J Appl Polym Sci 2020. [DOI: 10.1002/app.48831] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fei Fu
- Institute of Chemical Industry of Forest ProductsChinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing Jiangsu Province 210042 China
- Co‐Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Dan Wang
- Institute of Chemical Industry of Forest ProductsChinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing Jiangsu Province 210042 China
- Institute of New Technology of ForestryChinese Academy of Forestry Beijing 100091 China
| | - Minggui Shen
- Institute of Chemical Industry of Forest ProductsChinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing Jiangsu Province 210042 China
- Institute of New Technology of ForestryChinese Academy of Forestry Beijing 100091 China
| | - Shibin Shang
- Institute of Chemical Industry of Forest ProductsChinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing Jiangsu Province 210042 China
- Institute of New Technology of ForestryChinese Academy of Forestry Beijing 100091 China
| | - Zhanqian Song
- Institute of Chemical Industry of Forest ProductsChinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing Jiangsu Province 210042 China
| | - Jie Song
- Department of Chemistry and BiochemistryUniversity of Michigan‐Flint Flint Michigan 48502
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11
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Multi-benzocyclobutene functionalized siloxane monomers prepared by Piers-Rubinsztajn reaction for low-k materials. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109562] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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12
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Fu F, Wang D, Shen M, Shang S, Song Z, Song J. Biorenewable rosin derived benzocyclobutene resin: a thermosetting material with good hydrophobicity and low dielectric constant. RSC Adv 2019; 9:29788-29795. [PMID: 35531539 PMCID: PMC9071944 DOI: 10.1039/c9ra04828f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/14/2019] [Indexed: 12/04/2022] Open
Abstract
Development of bio-based polymers has been promoted by the growing concerns about the long-term sustainability and negative environmental footprint of petroleum-based polymer materials. A new monomer containing benzocyclobutene and allyl units has been developed by using rosin as the feedstock. The structure of the monomer was characterized by elemental analysis, MS, FT-IR and NMR spectroscopy. The monomer could be converted to the polymer via thermal ring-opening polymerization which was characterized via FT-IR, thermogravimetric analysis (TGA), atom force microscopy (AFM) and so on. The polymer showed good dielectric properties and hydrophobicity with an average dielectric constant of 2.51 in a range of frequencies from 0.1 to 18 MHz and a water contact angle of 106°. In addition, the polymer with other comprehensive performances exhibited a 5% weight loss temperature of 406 °C, a surface roughness (Ra) of 0.658 nm in a 5.0 × 5.0 μm2 area, hardness and Young's modulus of 0.283 and 3.542 GPa, and storage modulus of 11.46 GPa at 30 °C. These data suggest that the polymer may have potential application in electronics and microelectronics. The rosin structure was introduced into benzocyclobutene resin for the first time, and the thermosetting material with good hydrophobicity and low dielectric constant was prepared.![]()
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Affiliation(s)
- Fei Fu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing 210042 Jiangsu Province China +86-25-85482452 +86-25-85482452.,Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Dan Wang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing 210042 Jiangsu Province China +86-25-85482452 +86-25-85482452.,Institute of New Technology of Forestry, Chinese Academy of Forestry Beijing 100091 China
| | - Minggui Shen
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing 210042 Jiangsu Province China +86-25-85482452 +86-25-85482452.,Institute of New Technology of Forestry, Chinese Academy of Forestry Beijing 100091 China
| | - Shibin Shang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing 210042 Jiangsu Province China +86-25-85482452 +86-25-85482452.,Institute of New Technology of Forestry, Chinese Academy of Forestry Beijing 100091 China
| | - Zhanqian Song
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Laboratory of Biomass Energy and Material, National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory of Forest Chemical Engineering, State Forestry Administration Nanjing 210042 Jiangsu Province China +86-25-85482452 +86-25-85482452
| | - Jie Song
- Department of Chemistry and Biochemistry, University of Michigan-Flint Flint Michigan 48502 USA
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13
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Wei X, Hu H, Li X, Yin Q, Fan L, Huang Y, Yang J. Materials containing benzocyclobutene units with low dielectric constant and good thermostability prepared from star-shaped molecules. J Appl Polym Sci 2019. [DOI: 10.1002/app.47458] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xuelian Wei
- State Key Laboratory of Environmental-Friendly Energy Materials, School of Material Science and Engineering; Southwest University of Science and Technology; Mianyang 621010 China
| | - Huan Hu
- State Key Laboratory of Environmental-Friendly Energy Materials, School of Material Science and Engineering; Southwest University of Science and Technology; Mianyang 621010 China
| | - Xian Li
- State Key Laboratory of Environmental-Friendly Energy Materials, School of Material Science and Engineering; Southwest University of Science and Technology; Mianyang 621010 China
| | - Qiang Yin
- Research Center of Laser Fusion; China Academy of Engineering Physics; Mianyang 621900 China
| | - Li Fan
- State Key Laboratory of Environmental-Friendly Energy Materials, School of Material Science and Engineering; Southwest University of Science and Technology; Mianyang 621010 China
| | - Yawen Huang
- State Key Laboratory of Environmental-Friendly Energy Materials, School of Material Science and Engineering; Southwest University of Science and Technology; Mianyang 621010 China
| | - Junxiao Yang
- State Key Laboratory of Environmental-Friendly Energy Materials, School of Material Science and Engineering; Southwest University of Science and Technology; Mianyang 621010 China
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14
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Que X, Qiu Z, Yan Y. Synthesis and properties of benzocyclobutene-terminated imide-containing cyano group. HIGH PERFORM POLYM 2019. [DOI: 10.1177/0954008318821710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Benzocyclobutene (BCB) resins have aroused much interest because of their excellent physical and chemical properties. Unfortunately the temperature required to induce cross-linking in typical BCBs is higher than 250°C, which restricts their applications. In this study, a novel cyano-containing BCB-terminated imide monomer was synthesized through the reaction of 1-cyano-5-amino-benzocyclobutene with 4,4′-oxydiphthalic anhydride. This monomer allows a 50–100°C lower curing temperature in comparison with typical BCBs, and it is highly soluble in various solvents and can easily convert to cured film at 150–200°C. Because of the presence of rigid imide group and strong polar cyano group, the cured film exhibits excellent mechanical strength with tensile strength up to 87.8 MPa, high glass transition temperature up to 350°C, low coefficient of thermal expansion (36.9 ppm K−1), and outstanding planarity with the average surface roughness as low as 0.26 nm.
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Affiliation(s)
- Xianfeng Que
- Department of Polymer Science and Engineering, School of Materials Science and Technology, South China University of Technology, Guangzhou, China
| | - Zhiming Qiu
- Department of Polymer Science and Engineering, School of Materials Science and Technology, South China University of Technology, Guangzhou, China
| | - Yurong Yan
- Department of Polymer Science and Engineering, School of Materials Science and Technology, South China University of Technology, Guangzhou, China
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15
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Tian S, Li J, Cai Z, Shi B, Chen W, Cheng Y. Piers-Rubinsztajn reaction for BCB functionalized silphenylene/silbiphenylene siloxane oligomers to highly crosslinked low-k thermosets. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.09.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Que X, Yan Y, Qiu Z. Synthesis and characterization of benzocyclobutene-terminated imides with high organosolubility. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.04.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Su WL, Liu YL. Self-crosslinkable and modifiable polysiloxanes possessing Meldrum's acid groups. Polym Chem 2018. [DOI: 10.1039/c8py01173g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Meldrum's acid functionalized poly(dimethylsiloxane)s exhibiting self-crosslinking and post-modifiable features.
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Affiliation(s)
- Wei-Lun Su
- Department of Chemical Engineering
- National Tsing Hua University
- 30013 Hsinchu
- Taiwan
| | - Ying-Ling Liu
- Department of Chemical Engineering
- National Tsing Hua University
- 30013 Hsinchu
- Taiwan
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18
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Wang J, Zhou J, Jin K, Wang L, Sun J, Fang Q. A New Fluorinated Polysiloxane with Good Optical Properties and Low Dielectric Constant at High Frequency Based on Easily Available Tetraethoxysilane (TEOS). Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02000] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jiajia Wang
- Key Laboratory of
Synthetic and Self-Assembly Chemistry for Organic Functional Molecules,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Junfeng Zhou
- Key Laboratory of
Synthetic and Self-Assembly Chemistry for Organic Functional Molecules,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Kaikai Jin
- Key Laboratory of
Synthetic and Self-Assembly Chemistry for Organic Functional Molecules,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Liang Wang
- Shanghai
Tobacco Group Co. LTD, 717 Changyang
Road, Shanghai 200082, P. R. China
| | - Jing Sun
- Key Laboratory of
Synthetic and Self-Assembly Chemistry for Organic Functional Molecules,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Qiang Fang
- Key Laboratory of
Synthetic and Self-Assembly Chemistry for Organic Functional Molecules,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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