1 School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui, China 2 School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui, China
Diphenyldiphenylethynylsilane monomer (DPDPES) was synthesized with ethyl bromide, diphenyldichlorosilane and phenylacetylene by Grignard reaction. The molecular structure was characterized by FTIR and 1H-NMR spectroscopy. The polymer of polydiphenyl(diphenylethynyl)silane (PDPDPES) was also prepared by thermal polymerization. Non-isothermal thermal decomposition process of PDPDPES was studied with TG-DTG technology via model method to get thermal decomposition function and the corresponding mechanism which was further verified by model-free method. Results show that the apparent activation energy and the pre-exponential factor are about Ea=245.37kJ/mol and lgA=13.78s-1 obtained by six different kinetic methods, respectively. The mechanism of functions are .
CHI T , QI H M , HUANG F R , et al. Thermal oxidative degradation kinetics of silicon-arylacetylene-containing resin[J]. Fiber Reinforced Plastics/Composites, 2013, (2): 34- 38.
2
ZHOU Y , HUANG F , DU L , et al. Synthesis and properties of silicon-containing arylacetylene resins with polyhedral oligomeric silsesquioxane[J]. Polymer Engineering & Science, 2015, 55 (2): 316- 321.
3
SHEN Y , YUAN Q , HUANG F , et al. Effect of neutral nickel catalyst on cure process of silicon-containing polyarylacetylene[J]. Thermochimica Acta, 2014, 590, 66- 72.
doi: 10.1016/j.tca.2014.06.002
TAN D X , WANG Y L , XING H L , et al. Preparation and thermal decomposition kinetics of poly (phenyl (triphenylethynyl) silane)s[J]. Journal of Solid Rocket Technology, 2013, 36 (3): 385- 389.
5
ZHANG J , HUANG J , YU X , et al. Preparation and properties of modified silicon-containing arylacetylene resin with bispropargyl ether[J]. Bull Korean Chem Soc, 2012, 33 (11): 3706- 3710.
doi: 10.5012/bkcs.2012.33.11.3706
6
MAJI A , HAZRA A , MAITI D . Direct synthesis of α-trifluoromethyl ketone from (hetero) arylacetylene: design, intermediate trapping, and mechanistic investigations[J]. Organic Letters, 2014, 16 (17): 4524- 4527.
doi: 10.1021/ol502071g
WU Y S , YU R B , ZHU C J , et al. Heat resistance of cured arylacetylene modified by siloxane[J]. Journal of Shanghai University (Natural Science), 2013, 19 (6): 562- 566.
SONG N. Study on high-temperature resistant aryl-acetylene resins containing silicon, nitrogen and boron elements and their composites[D]. Shanghai: East China University of Science and Technology, 2012.
DAI Z L , CHEN Q , NI L Z . Di-N-m-accetylenephenylphthalimide-ether modifying methyl-di-phenylacetylene-silane[J]. Acta Materiae Compositae Sinica, 2005, 22 (5): 89- 93.
LIU Y B , GUO K K , QI H M , et al. Thermal stability of blends of polysilane and silicon-containing arylacetylene resin[J]. New Chemical Materials, 2010, 38 (4): 84- 88.
12
KOWNACKI I , ORWAT B , MARCINIEC B , et al. A new and efficient route for the synthesis of alkynyl functionalized silicon derivatives[J]. Tetrahedron Letters, 2014, 55 (2): 548- 550.
doi: 10.1016/j.tetlet.2013.11.103
13
LIU H Q , HARROD J F . Copper (I) chloride catalyzed cross-dehydrocoupling reactions between silanes and ethynyl compounds a new method for the copolymerization of silanes and alkynes[J]. Canadian Journal of Chemistry, 1990, 68 (7): 1100- 1105.
doi: 10.1139/v90-170
14
MAIENTHAL M , HELLMANN M , HABER C P , et al. The preparation of some aryl silanes1[J]. Journal of the American Chemical Society, 1954, 76 (24): 6392- 6393.
doi: 10.1021/ja01653a043
15
ISHIKAWA J , ITOH M . Dehydrogenative coupling between hydrosilanes and alkynes catalyzed by alkoxides, alkylmetals, and metalamides[J]. Journal of Catalysis, 1999, 185 (2): 454- 461.
doi: 10.1006/jcat.1999.2530
CHEN M F , ZHOU Q , NI L Z , et al. Synthesis and fluorescence properties of conjugated monomers containing phenylacetylene[J]. Polymer Materials Science & Engineering, 2013, 29 (12): 1- 4.
17
TAN D , WANG Y , LI Z , et al. Synthesis and cure kinetics of diphenyl (diphenylethynyl) silane monomer[J]. Research on Chemical Intermediates, 2013, 39 (7): 3427- 3440.
doi: 10.1007/s11164-012-0855-8
WANG Y L , TAN D X , YU F , et al. The non-isothermal thermal decomposition process of poly(phenyltri(phenylethynyl)silane)s[J]. Journal of Functional Materials, 2014, 45 (21): 21040- 21044.
doi: 10.3969/j.issn.1001-9731.2014.21.009
19
SUN Y J , JIANG J C , WANG Y J , et al. Kinetic analysis of biomass and coal mono-pyrolysis as well as co-pyrolysis by Coats-Redfern[J]. Chemistry & Industry of Forest Products, 2014, 34 (5): 8- 14.
20
YAO X D , FANG R N , PANG H J , et al. Preparation and non-isothermal kinetics analysis of N-[(4-bromo-3, 5-difluorine) phenyl] acrylamide[J]. Advanced Materials Research, 2013, 781, 580- 584.
21
BLAINE R L , KISSINGER H E . Homer kissinger and the kissinger equation[J]. Thermochimica Acta, 2012, 540, 1- 6.
doi: 10.1016/j.tca.2012.04.008
HANG Z S , TAN L H , JU F Y , et al. Non-isothermal kinetic studies on the thermal decomposition of melamine by thermogravimetric analysis[J]. Journal of Analytical Science, 2011, 27 (3): 279- 283.
23
ZHU L , WANG X , WU L , et al. Thermal decomposition properties of cross-linked polycarbonate derived from carbon dioxide, propylene oxide and pyromellitic dianhydride[J]. Materials Letters, 2014, 128, 396- 399.
doi: 10.1016/j.matlet.2014.04.057
24
ZHANG S , SHI H S , HUANG S W , et al. Dehydration characteristics of struvite-K pertaining to magnesium potassium phosphate cement system in non-isothermal condition[J]. Journal of Thermal Analysis and Calorimetry, 2013, 111 (1): 35- 40.
doi: 10.1007/s10973-011-2170-9
LU L G , HAN Z K , YANG S S . Study on thermal decomposition kinetics of novel halogen-free flame retardant from bisphenol s-bis(5, 5-dimethyl-1, 3-dioxaphosphorinanyl-2-oxy)[J]. Journal of Molecular Science, 2010, 26 (4): 261- 265.
HU Y P , ZHAO X F , ZHAO N N , et al. Non-isothermal thermal decomposition kinetics and thermal safety of DNGTz[J]. Chinese Journal of Energetic Materials, 2014, 22 (6): 767- 773.
doi: 10.11943/j.issn.1006-9941.2014.06.011