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Offer
From Non Premium Member |
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Type: |
Sell |
| Subject: |
offer Poly(vinyl cinnamate) |
| Description: |
Poly(vinyl cinnamate)
CAS: 9050-06-0
Under UV irradiation, poly(vinyl cinnamate) (PVCi) films undergo cross-linking due to [2 + 2] photocycloaddition between cinnamoyl groups. Consequently, electronic configuration of lateral polymer groups changes and also leads to the drop of the refractive index in the visible range. This mechanism is studied with regards to the level of the electronic absorption of cinnamate centered at 278 nm. It acts on refractive index by shifting the absorption UV band. Most of the time, this influence vanishes in the near infrared region (NIR). It is due to antagonist phenomena acting at the expense of the index lowering. The causes analysis leads us to optimize the irradiation spectrum, providing higher index contrasts between irradiated and nonirradiated area. We show that strong index changes can be achieved in PVCi film, up to 2.5 10-2 even in the NIR, enabling us, for example, to perform optical photoprinting waveguides for telecommunication wavelengths (1300-1550 nm).
For more details, please contact Steven directly via ycgsales03@gmail.com or fax:+86-27-6888-6700 |
| Placement Date: |
Dec 03, 2008 |
| Expiration Date: |
Jan 01, 2010 |
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Company Name: |
Wuhan Hezhong BioChem Mfg. Co.,Ltd |
| Contact Person: |
Steven |
| City: |
Wuhan |
| Country: |
China
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| Local Time: |
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| E-mail: |
Premium
Membership Required (Join Free Today) |
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| Introduction: |
As one of largest manufacturers of chemical raw materials and cinnamate series in China, our main products include cinnamic acid, cinnamic aldehyde, cinnamic alcohol, methyl cinnamate,ethyl cinnamate, cinnamonitrile, Cinnamyl acetate, Cinnamyl chloride and their downside products.Our products have passed ISO 9001, and we have got kosher certificates. We also distribute pharmaceutical raw materials from our affiliated factories like Biotin, aspartame, L-carnitine, melatonin, metronidazole, arbutin,paclitaxel and many kinds of vitamins. We hope to find more friends through the internet, and welcome contact me freely! |
| Business Type: |
Exporter, Manufacturer |
| Areas of Interest: |
1. Chemicals/Organics
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