O. Schemes and .. Of-schemes, Scheme 1: Interaction of the lowest triplet state of BZ with hydrogen donor, p.17

. .. Vbz, Scheme 12: Photoperoxidation, thermal crosslinking and photo-decrosslinking of PVK, p.25

F. Kbr, C=O) 7.2 Synthesis of CQMA (C-8, pp.1746-1747

D. Y. Ryu, K. Shin, E. Drockenmuller, C. J. Hawker, and T. P. Russell, A Generalized Approach to the Modification of Solid Surfaces, Science, vol.308, issue.5719, pp.236-239, 2005.
DOI : 10.1126/science.1106604

R. Schinner, T. Wolff, D. Kuckling, and . Ber, Defined photo-crosslinking and viscometric data I: Crosslinking via phenylindene and stilbazolium chromophors, Berichte der Bunsengesellschaft f??r physikalische Chemie, vol.27, issue.11, pp.1710-1714, 1998.
DOI : 10.1002/bbpc.19981021137

I. Gupta, S. N. Gupta, and D. C. Neckers, Photocrosslinking and photografting of vinyl polymers using poly(styrene-co-p-vinylbenzophenone-p???-tert-butyl perbenzoate) as a comonomer, Journal of Polymer Science: Polymer Chemistry Edition, vol.20, issue.1, pp.147-157, 1982.
DOI : 10.1002/pol.1982.170200116

H. Klinger, Ueber das Isobenzil und die Einwirkung des Sonnenlichts auf einige organische Substanzen, Berichte der deutschen chemischen Gesellschaft, vol.167, issue.2, p.1862
DOI : 10.1002/cber.18860190252

I. Luká? and C. Kósa, The formation of dibenzoyl peroxide by photooxidation of benzil in a polymer film, Macromolecular Rapid Communications, vol.15, issue.12, pp.929-934, 1994.
DOI : 10.1002/marc.1994.030151204

F. Catalina, C. Peinado, M. Blanco, A. Alonso, and N. S. Allen, Photocalorimetric study on the photoinitiation activity of water soluble copolymers with pendent benzil moieties, Journal of Photochemistry and Photobiology A: Chemistry, vol.131, issue.1-3, pp.141-146, 2000.
DOI : 10.1016/S1010-6030(99)00225-7

J. Mosná?ek, I. Luká?, ?. Chromik, I. Kosti?, and P. Hrdlovi?, Network formation of a phenyl vinyl ketone copolymer with 4-vinylbenzil and its photodecrosslinking in films, Journal of Polymer Science Part A: Polymer Chemistry, vol.5, issue.3, pp.765-771, 2004.
DOI : 10.1002/pola.10860

R. Z. Greenley, Polymer Handbook

K. Murayama, K. Ono, J. Osugy, and . Bull, The Photochemical Reaction of ??-Diketones, Bulletin of the Chemical Society of Japan, vol.45, issue.3, pp.847-851, 1972.
DOI : 10.1246/bcsj.45.847

D. L. Bunbury, C. T. Wang, and T. T. Chuang, The photolysis of benzil in cyclohexane solution, Canadian Journal of Chemistry, vol.46, issue.9, pp.1473-1479, 1968.
DOI : 10.1139/v68-243

K. N. Mehrotra and G. P. Pandey, Photochemical Transformations of 1,2-Diketones and Benzhydrylamine, Bulletin of the Chemical Society of Japan, vol.53, issue.4, pp.1081-1084, 1980.
DOI : 10.1246/bcsj.53.1081

H. Inoue, . S. Takido, T. Somemiya, and Y. Momura, Novel photochemical reaction of benzil, Tetrahedron Letters, vol.14, issue.29, pp.2755-2758, 1973.
DOI : 10.1016/S0040-4039(01)96131-3

Y. Sawaki, Mechanistic study on the photo-oxidation of ??-diketones, Tetrahedron, vol.41, issue.11, pp.2199-2205, 1985.
DOI : 10.1016/S0040-4020(01)96593-7

G. Cosa and J. C. Scaiano, Photochemistry of Diketones:?? Observation of a Triplet State???Oxygen Adduct, Journal of the American Chemical Society, vol.126, issue.28, pp.8636-8637, 2004.
DOI : 10.1021/ja048174u

Y. Sawaki and C. S. Foote, Mechanism of photoepoxidation of olefins with .alpha.-diketones and oxygen, The Journal of Organic Chemistry, vol.48, issue.25, pp.4934-4940, 1983.
DOI : 10.1021/jo00173a030

I. Luká?, P. Hrdlovi?, and W. Schnabel, Preparation and photochemical properties of 4-propenoylbenzil polymers, Macromolecular Chemistry and Physics, vol.195, issue.6, pp.2233-2245, 1994.
DOI : 10.1002/macp.1994.021950629

C. Kósa, I. Luká?, and R. G. Weiss, Relative rates of photooxidation of benzil to benzoyl peroxide in various polymer matrices, Macromolecular Chemistry and Physics, vol.200, issue.5, pp.1080-1085, 1999.
DOI : 10.1002/(SICI)1521-3935(19990501)200:5<1080::AID-MACP1080>3.0.CO;2-7

P. Hrdlovi?, Luká?, I. in Developments in Polymer Degradation, pp.101-141, 1982.

J. Rabek, Mechanisms of Photophysical Processes and Photochemical Reactions in Polymers

M. B. Rubin and A. L. Gutman, Minor products in photoreactions of .alpha.-diketones with arenes. Abstraction of hydroxylic hydrogen by triplet carbonyl, The Journal of Organic Chemistry, vol.51, issue.13, pp.2511-2515, 1986.
DOI : 10.1021/jo00363a020

M. B. Rubin and J. M. Ben-bassat, Stereochemical relations in the bornane series, Tetrahedron, vol.26, issue.14, pp.3579-3589, 1970.
DOI : 10.1016/S0040-4020(01)92937-0

M. B. Rubin and R. G. Labarge, The Photoaddition of o- and p-Xylene to Camphorquinone, The Journal of Organic Chemistry, vol.31, issue.10, pp.3283-3289, 1966.
DOI : 10.1021/jo01348a041

J. Mosná?ek and I. J. Luká?, Irradiation of camphorquinone in glassy polymer matrices in the absence and presence of molecular oxygen, Journal of Photochemistry and Photobiology A: Chemistry, vol.151, issue.1-3, pp.95-104, 2002.
DOI : 10.1016/S1010-6030(02)00024-2

P. J. Flory, Statistical Mechanics of Swelling of Network Structures, The Journal of Chemical Physics, vol.18, issue.1, p.108, 1950.
DOI : 10.1063/1.1747424

P. J. Flory, Principles of polymer chemistry, 1953.

Z. Y. Ding, J. J. Aklonis, and R. J. Salovey, Model filled polymers. VI. Determination of the crosslink density of polymeric beads by swelling, Journal of Polymer Science Part B: Polymer Physics, vol.29, issue.8, pp.1035-1038, 1991.
DOI : 10.1002/polb.1991.090290815

M. Baba, J. Nedelec, and J. Lacoste, Porous Volume of Inorganic Materials and Degree of Swelling of Elastomers Monitored by DSC Measurements, The Journal of Physical Chemistry B, vol.107, issue.46, pp.12884-12890, 2003.
DOI : 10.1021/jp027450t

A. Eliassi and H. Modarress, Water activities in binary and ternary aqueous systems of poly(ethylene glycol), poly(propylene glycol) and dextran, European Polymer Journal, vol.37, issue.7, pp.1487-1492, 2001.
DOI : 10.1016/S0014-3057(00)00262-7

M. L. Cecopieri-gómez and J. Palacios-alquisira, Interaction parameter (chi); expansion factor (epsilon); steric hindrance factor (sigma); and shielding function F(xi); for the system PEA-organic solvents by intrinsic viscosity measurements, Journal of the Brazilian Chemical Society, vol.16, issue.3a, pp.426-433, 2005.
DOI : 10.1590/S0103-50532005000300017

F. Mantovani, M. Grassi, I. Colombo, and R. Lapasin, A combination of vapor sorption and dynamic laser light scattering methods for the determination of the Flory parameter ?? and the crosslink density of a powdered polymeric gel, Fluid Phase Equilibria, vol.167, issue.1, pp.63-81, 2000.
DOI : 10.1016/S0378-3812(99)00305-2

F. Reinoso, Characterization of Porous Solids, pp.543-551, 1991.

H. Reiss and I. B. Wilson, The effect of surface on melting point, Journal of Colloid Science, vol.3, issue.6, pp.551-561, 1948.
DOI : 10.1016/S0095-8522(48)90048-8

W. Kuhn and H. Majer, Ungleichheit des Gefrierpunktes isotonischer Systeme., Zeitschrift f??r Physikalische Chemie, vol.3, issue.5_6, pp.330-340, 1955.
DOI : 10.1524/zpch.1955.3.5_6.330

W. Kuhn, E. Peterli, and H. Majer, Freezing point depression of gels produced by high polymer network, Journal of Polymer Science, vol.16, issue.82, pp.539-548, 1955.
DOI : 10.1002/pol.1955.120168238

M. Brun, . Lallemand, J. Quinson, and C. Eyraud, A new method for the simultaneous determination of the size and shape of pores: the thermoporometry, Thermochimica Acta, vol.21, issue.1, pp.59-88, 1977.
DOI : 10.1016/0040-6031(77)85122-8

G. W. Scherer, Crystallization in pores, Cement and Concrete Research, vol.29, issue.8, pp.1347-1358, 1999.
DOI : 10.1016/S0008-8846(99)00002-2

S. Escribano, P. Aldebert, and M. Pineri, Volumic electrodes of fuel cells with polymer electrolyte membranes: electrochemical performances and structural analysis by thermoporometry, Electrochimica Acta, vol.43, issue.14-15, pp.2195-2202, 1998.
DOI : 10.1016/S0013-4686(97)10108-6

J. Quinson, N. Tchipkam, J. Dumas, C. Bovier, J. Serughetti et al., Swelling of titania gels in decane, Journal of Non-Crystalline Solids, vol.99, issue.1, pp.151-159, 1988.
DOI : 10.1016/0022-3093(88)90467-X

K. Ishikiriyama, A. Sakamoto, M. Todoki, T. Tayama, K. Tanaka et al., Pore size distribution measurements of polymer hydrogel membranes for artificial kidneys using differential scanning calorimetry, Thermochimica Acta, vol.267, pp.169-180, 1995.
DOI : 10.1016/0040-6031(95)02476-X

M. Baba, J. Nedelec, J. Lacoste, and J. Gardette, Crosslinking of elastomers resulting from ageing: use of thermoporosimetry to characterise the polymeric network with n-heptane as condensate, Polymer Degradation and Stability, vol.80, issue.2, pp.305-313, 2003.
DOI : 10.1016/S0141-3910(03)00014-4

M. Baba, J. Nedelec, J. Lacoste, and J. Gardette, Calibration of cyclohexane solid???solid phase transition thermoporosimetry and application to the study of crosslinking of elastomers upon aging, Journal of Non-Crystalline Solids, vol.315, issue.3, pp.228-238, 2003.
DOI : 10.1016/S0022-3093(02)01610-1

N. Billamboz, M. Baba, M. Grivet, and J. Nedelec, A General Law for Predictive Use of Thermoporosimetry as a Tool for the Determination of Textural Properties of Divided Media, The Journal of Physical Chemistry B, vol.108, issue.32, pp.12032-12037, 2004.
DOI : 10.1021/jp048189e

J. Nedelec, J. E. Grolier, and M. Baba, Thermoporosimetry: A powerful tool to study the cross-linking in gels networks, Journal of Sol-Gel Science and Technology, vol.9, issue.2, pp.191-200, 2006.
DOI : 10.1007/s10971-006-9115-y
URL : https://hal.archives-ouvertes.fr/hal-00154680

M. Baba, J. Lacoste, and J. Gardette, Crosslinking on ageing of elastomers III. A new method for evaluation of crosslinking based on density measurements, Polymer Degradation and Stability, vol.65, issue.3, pp.421-424, 1999.
DOI : 10.1016/S0141-3910(99)00031-2

P. Bussière, J. Gardette, J. Lacoste, and M. Baba, Characterization of photodegradation of polybutadiene and polyisoprene: chronology of crosslinking and chain-scission, Polymer Degradation and Stability, vol.88, issue.2, pp.182-188, 2005.
DOI : 10.1016/j.polymdegradstab.2004.02.013

M. Reiner, Deformation, Strain and Flow. An Elementary Introduction to Rheology

E. C. Bingham and L. W. Spooner, Polymerization vs. Association and Condensation, Industrial & Engineering Chemistry, vol.23, issue.7, pp.785-786, 1931.
DOI : 10.1021/ie50259a014

H. H. Winter, Encyclopedia of polymer science and engineering, p.343, 1989.

A. Kjoniksen and B. Nyström, Effects of Polymer Concentration and Cross-Linking Density on Rheology of Chemically Cross-Linked Poly(vinyl alcohol) near the Gelation Threshold, Macromolecules, vol.29, issue.15, pp.5215-5222, 1996.
DOI : 10.1021/ma960094q

J. P. Eloundou, M. Feve, J. F. Gerard, D. Harran, and J. P. Pascault, Epoxy???Amine System, Macromolecules, vol.29, issue.21, pp.6907-6916, 1996.
DOI : 10.1021/ma960287d

S. R. Raghavan, L. A. Chen, C. Mcdowell, and S. A. Khan, Rheological study of crosslinking and gelation in chlorobutyl elastomer systems, Polymer, vol.37, issue.26, pp.5869-5875, 1996.
DOI : 10.1016/S0032-3861(96)00446-6

J. F. Vega, A. Munoz-escalona, A. Santamaria, M. E. Munoz, and P. Lafuente, Comparison of the Rheological Properties of Metallocene-Catalyzed and Conventional High-Density Polyethylenes, Macromolecules, vol.29, issue.3, p.960, 1996.
DOI : 10.1021/ma9504633

J. P. Montfort, G. Marin, and P. Monge, Effects of constraint release on the dynamics of entangled linear polymer melts, Macromolecules, vol.17, issue.8, p.1551, 1984.
DOI : 10.1021/ma00138a022

V. Verney, E. Koërper, and A. Michel, Melt rheology as a powerful tool to follow chemical reactions in a polyolefin matrix, Makromolekulare Chemie. Macromolecular Symposia, vol.4, issue.1, pp.187-198, 1989.
DOI : 10.1002/masy.19890250117

J. 99-ferry, Viscoelastic properties of polymers, 2 nd Ed, 1970.

P. J. Flory, Network Structure and the Elastic Properties of Vulcanized Rubber., Chemical Reviews, vol.35, issue.1, p.51, 1944.
DOI : 10.1021/cr60110a002

I. Luká?, M. Ka?uráková, and ?. Malík, Side-products of acylation of 1-acetoxy-2-phenoxyethane with phenylacetyl chloride, Collection of Czechoslovak Chemical Communications, vol.52, issue.3, pp.756-760, 1987.
DOI : 10.1135/cccc19870756

I. Luká?, I. Zvara, M. Kulí?ková, and P. Hrdlovi?, Synthesis of acyl 1-acetoxy-2-phenoxyethanes and the corresponding hydroxy derivatives, Collection of Czechoslovak Chemical Communications, vol.45, issue.6, pp.1826-1830, 1980.
DOI : 10.1135/cccc19801826

I. Luká?, I. Zvara, and P. Hrdlovi?, Preparation and emission spectra of polymeric 1,2-diketones???, European Polymer Journal, vol.18, issue.5, pp.427-433, 1982.
DOI : 10.1016/0014-3057(82)90180-X

B. Husár, S. Commereuc, I. Luká?, ?. Chmela, J. M. Nedelec et al., Carbon Tetrachloride as a Thermoporometry Liquid Probe To Study the Cross-Linking of Styrene Copolymer Networks, The Journal of Physical Chemistry B, vol.110, issue.11, pp.5315-5320, 2006.
DOI : 10.1021/jp055648i

E. A. Grulke, In Polymer Handbook, p.675, 1999.

T. 109-canal and N. A. Peppas, Correlation between mesh size and equilibrium degree of swelling of polymeric networks, Journal of Biomedical Materials Research, vol.25, issue.10, pp.1183-1193, 1989.
DOI : 10.1002/jbm.820231007

L. Angiolini, D. Caretti, and E. Salatelli, Synthesis and photoinitiation activity of radical polymeric photoinitiators bearing side-chain camphorquinone moieties, Macromolecular Chemistry and Physics, vol.201, issue.18, pp.2646-2653, 2000.
DOI : 10.1002/1521-3935(20001201)201:18<2646::AID-MACP2646>3.0.CO;2-D

F. Dallacker, I. Alroggen, H. Krings, B. Laurs, and M. Lipp, Neue Verbindungen der Terpenreihe und verwandter Systeme, Justus Liebigs Annalen der Chemie, vol.26, issue.1, pp.23-36, 1961.
DOI : 10.1002/jlac.19616470105

F. Dallacker, K. Ulrichs, and M. Lipp, Anwendung der Wittig-Reaktion auf bi- und tricyclische Terpene, Justus Liebigs Annalen der Chemie, vol.382, issue.1, pp.50-55, 1963.
DOI : 10.1002/jlac.19636670108