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Polymers (Basel)

Title:		Enhanced Anti-Ultraviolet and Thermal Stability of a Pesticide via Modification of a Volatile Organic Compound (VOC)-Free Vinyl-Silsesquioxane in Desert Areas
Author(s):		Lin D; Kong M; Li L; Li X; Zhang X;
Address:		"College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. lindr2018@sicau.edu.cn. College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. 18227589574@163.com. College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. 18227584828@163.com. College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. 18227589580@163.com. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. zhangxinwen@hit.edu.cn"
Journal Title:		Polymers (Basel)
Year:		2016
Volume:		20160804
Issue:		8
Page Number:		-
DOI:		10.3390/polym8080282
ISSN/ISBN:		2073-4360 (Electronic) 2073-4360 (Linking)
Abstract:		"Due to the effect of severe environmental conditions, such as intense heat, blowing sand, and ultraviolet light, conventional pesticide applications have repeatedly failed to adequately control mosquito and sandfly populations in desert areas. In this study, a vinyl silsesquioxane (VS) was added to a pesticide (citral) to enhance residual, thermal and anti-ultraviolet properties via three double-bond reactions in the presence of an initiator: (1) the connection of VS and citral, (2) a radical self-polymerization of VS and (3) a radical self-polymerization of citral. VS-citral, the expected and main product of the copolymerization of VS and citral, was characterized using standard spectrum techniques. The molecular consequences of the free radical polymerization were analyzed by MALDITOF spectrometry. Anti-ultraviolet and thermal stability properties of the VS-citral system were tested using scanning spectrophotometry (SSP) and thermogravimetric analysis (TGA). The repellency of VS-citral decreased over time, from 97.63% at 0 h to 72.98% at 1 h and 60.0% at 2 h, as did the repellency of citral, from 89.56% at 0 h to 62.73% at 1 h and 50.95% at 2 h"
Keywords:		pesticide (citral) polymer delivery system polymerization repellency silsesquioxane (SSO);
Notes:		"PubMed-not-MEDLINELin, Derong Kong, Maozhu Li, Liangyu Li, Xindan Zhang, Xingwen eng 31340032/the National Science Foundation of China/ Switzerland 2016/08/04 Polymers (Basel). 2016 Aug 4; 8(8):282. doi: 10.3390/polym8080282"