Vacuum pyrolysis of phenolic resin laminate substrate in temperature-programmed furnace reactor was studied.The sample and product oils were characterized by elemental analysis, Fourier transform infrared (FT-IR) analysis and gas chromatography-mass spectrometry(GC-MS).Analytical results showed that the up per clear liquid of pyrolysis oils was mainly consisted of water-soluble substances, such as phenol, cresol, xy lenol, sugars, hydantoins, morpholines, pyranones and pyridine derivatives compounds, etc., while the lower sediment was mainly insoluble or hardly water-soluble substances, such as the big substituent phenolics (the number of substituent carbon atoms of which is greater than or equal to 2), aryl phosphate esters, fatty acid esters and nitrile compounds, and so on.Both of the upper clear liquid and lower sediment have a higher content of melamines.

Objective Rho signaling component α-catulin,is a cytoskeletal linker protein and plays an important role in apoptotic and senescence resistance,cytoskeletal reorganization,mobility,invasion and epithelial to mesenchymal transition(EMt)of cancer cells. Methods Here,we ex-amined α-catulin expression in squamous epithelium,dysplasia and cancer of head and neck on tissue microarrays by immunostaining. Its expres-sion was compared with clinicopathological parameters and survival rate of cancers. Results It was found that α-catulin expression level was signifi-cantly higher in primary cancers than that in normal squamous epithelium and dysplasia(P < 0.05),but not significantly correlated with aggressive behaviors or adverse prognosis of HNSCC patients(P > 0.05). Cox′s proportional hazard model indicated that distant metastasis and tNM staging were independent prognostic factors for overall survival of the patients with head and neck squamous carcinoma(HNSCC,P < 0.05). Conclusion these findings suggested that up-regulated expression of α-catulin protein may play an important role in the pathogenesis of HNSCC,which might be employed as a potential marker for tumorgenesis of HNSCCs.